Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 00:04:25,909 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 00:04:25,911 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 00:04:25,923 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 00:04:25,923 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 00:04:25,924 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 00:04:25,925 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 00:04:25,927 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 00:04:25,928 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 00:04:25,929 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 00:04:25,930 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 00:04:25,930 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 00:04:25,931 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 00:04:25,932 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 00:04:25,933 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 00:04:25,934 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 00:04:25,935 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 00:04:25,937 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 00:04:25,939 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 00:04:25,940 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 00:04:25,942 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 00:04:25,943 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 00:04:25,945 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 00:04:25,945 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 00:04:25,945 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 00:04:25,946 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 00:04:25,946 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 00:04:25,947 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 00:04:25,947 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 00:04:25,948 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 00:04:25,949 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 00:04:25,949 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 00:04:25,950 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 00:04:25,950 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 00:04:25,951 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 00:04:25,951 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 00:04:25,951 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 00:04:25,952 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 00:04:25,953 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 00:04:25,953 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-06-22 00:04:25,968 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 00:04:25,968 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 00:04:25,969 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 00:04:25,969 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 00:04:25,969 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 00:04:25,970 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 00:04:25,970 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 00:04:25,970 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 00:04:25,970 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 00:04:25,970 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 00:04:25,970 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 00:04:25,970 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 00:04:25,971 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 00:04:25,971 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 00:04:25,971 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 00:04:25,971 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 00:04:25,971 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 00:04:25,971 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 00:04:25,972 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 00:04:25,972 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 00:04:25,972 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 00:04:25,972 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 00:04:25,972 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 00:04:25,972 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 00:04:25,973 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 00:04:25,973 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 00:04:25,973 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 00:04:25,973 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 00:04:25,973 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 00:04:26,000 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 00:04:26,014 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 00:04:26,017 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 00:04:26,019 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 00:04:26,019 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 00:04:26,020 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 00:04:26,087 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/f91cf7536e1947be8a58281548b3c274/FLAG70404653a [2020-06-22 00:04:26,494 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 00:04:26,494 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 00:04:26,507 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/f91cf7536e1947be8a58281548b3c274/FLAG70404653a [2020-06-22 00:04:26,834 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/f91cf7536e1947be8a58281548b3c274 [2020-06-22 00:04:26,846 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 00:04:26,847 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 00:04:26,848 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 00:04:26,849 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 00:04:26,852 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 00:04:26,853 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 12:04:26" (1/1) ... [2020-06-22 00:04:26,856 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35917040 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:04:26, skipping insertion in model container [2020-06-22 00:04:26,857 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 12:04:26" (1/1) ... [2020-06-22 00:04:26,864 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 00:04:26,903 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 00:04:27,223 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 00:04:27,235 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 00:04:27,283 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 00:04:27,327 INFO L195 MainTranslator]: Completed translation [2020-06-22 00:04:27,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:04:27 WrapperNode [2020-06-22 00:04:27,328 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 00:04:27,329 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 00:04:27,330 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 00:04:27,330 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 00:04:27,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:04:27" (1/1) ... [2020-06-22 00:04:27,354 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:04:27" (1/1) ... [2020-06-22 00:04:27,378 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 00:04:27,378 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 00:04:27,379 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 00:04:27,379 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 00:04:27,388 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:04:27" (1/1) ... [2020-06-22 00:04:27,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:04:27" (1/1) ... [2020-06-22 00:04:27,392 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:04:27" (1/1) ... [2020-06-22 00:04:27,392 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:04:27" (1/1) ... [2020-06-22 00:04:27,400 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:04:27" (1/1) ... [2020-06-22 00:04:27,406 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:04:27" (1/1) ... [2020-06-22 00:04:27,408 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:04:27" (1/1) ... [2020-06-22 00:04:27,410 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 00:04:27,411 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 00:04:27,411 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 00:04:27,411 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 00:04:27,412 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:04:27" (1/1) ... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 00:04:27,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-06-22 00:04:27,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-06-22 00:04:27,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-06-22 00:04:27,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-06-22 00:04:27,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-06-22 00:04:27,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 00:04:27,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 00:04:27,823 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 00:04:27,823 INFO L286 CfgBuilder]: Removed 14 assue(true) statements. [2020-06-22 00:04:27,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 12:04:27 BoogieIcfgContainer [2020-06-22 00:04:27,825 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 00:04:27,825 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 00:04:27,826 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 00:04:27,828 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 00:04:27,829 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 12:04:27" (1/1) ... [2020-06-22 00:04:27,847 INFO L313 BlockEncoder]: Initial Icfg 62 locations, 73 edges [2020-06-22 00:04:27,849 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 00:04:27,849 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 00:04:27,850 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 00:04:27,850 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 00:04:27,853 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 00:04:27,854 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 00:04:27,854 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 00:04:27,882 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 00:04:27,920 INFO L200 BlockEncoder]: SBE split 35 edges [2020-06-22 00:04:27,926 INFO L70 emoveInfeasibleEdges]: Removed 5 edges and 0 locations because of local infeasibility [2020-06-22 00:04:27,928 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 00:04:27,961 INFO L100 BaseMinimizeStates]: Removed 16 edges and 8 locations by large block encoding [2020-06-22 00:04:27,963 INFO L70 RemoveSinkStates]: Removed 4 edges and 3 locations by removing sink states [2020-06-22 00:04:27,965 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 00:04:27,965 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 00:04:27,965 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 00:04:27,966 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 00:04:27,966 INFO L313 BlockEncoder]: Encoded RCFG 51 locations, 97 edges [2020-06-22 00:04:27,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 12:04:27 BasicIcfg [2020-06-22 00:04:27,967 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 00:04:27,968 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 00:04:27,968 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 00:04:27,971 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 00:04:27,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 12:04:26" (1/4) ... [2020-06-22 00:04:27,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6331e011 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 12:04:27, skipping insertion in model container [2020-06-22 00:04:27,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:04:27" (2/4) ... [2020-06-22 00:04:27,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6331e011 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 12:04:27, skipping insertion in model container [2020-06-22 00:04:27,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 12:04:27" (3/4) ... [2020-06-22 00:04:27,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6331e011 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 12:04:27, skipping insertion in model container [2020-06-22 00:04:27,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 12:04:27" (4/4) ... [2020-06-22 00:04:27,975 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 00:04:27,984 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 00:04:27,993 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 24 error locations. [2020-06-22 00:04:28,010 INFO L257 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2020-06-22 00:04:28,039 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 00:04:28,040 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 00:04:28,040 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 00:04:28,040 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 00:04:28,040 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 00:04:28,040 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 00:04:28,040 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 00:04:28,041 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 00:04:28,041 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 00:04:28,056 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states. [2020-06-22 00:04:28,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-06-22 00:04:28,062 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 00:04:28,062 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-06-22 00:04:28,063 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION]=== [2020-06-22 00:04:28,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:04:28,068 INFO L82 PathProgramCache]: Analyzing trace with hash 1170389712, now seen corresponding path program 1 times [2020-06-22 00:04:28,070 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:04:28,070 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:04:28,123 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:04:28,123 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:04:28,123 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:04:28,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:04:28,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:04:28,240 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 00:04:28,240 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-06-22 00:04:28,244 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-06-22 00:04:28,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-06-22 00:04:28,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-06-22 00:04:28,261 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 4 states. [2020-06-22 00:04:28,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:04:28,572 INFO L93 Difference]: Finished difference Result 68 states and 128 transitions. [2020-06-22 00:04:28,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-06-22 00:04:28,574 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-06-22 00:04:28,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 00:04:28,588 INFO L225 Difference]: With dead ends: 68 [2020-06-22 00:04:28,588 INFO L226 Difference]: Without dead ends: 53 [2020-06-22 00:04:28,592 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-06-22 00:04:28,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-06-22 00:04:28,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 48. [2020-06-22 00:04:28,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-06-22 00:04:28,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 98 transitions. [2020-06-22 00:04:28,634 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 98 transitions. Word has length 6 [2020-06-22 00:04:28,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 00:04:28,635 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 98 transitions. [2020-06-22 00:04:28,635 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-06-22 00:04:28,635 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 98 transitions. [2020-06-22 00:04:28,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-06-22 00:04:28,636 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 00:04:28,636 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-06-22 00:04:28,636 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION]=== [2020-06-22 00:04:28,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:04:28,636 INFO L82 PathProgramCache]: Analyzing trace with hash 1170389714, now seen corresponding path program 1 times [2020-06-22 00:04:28,637 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:04:28,637 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:04:28,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:04:28,638 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:04:28,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:04:28,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:04:28,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:04:28,665 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 00:04:28,665 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-06-22 00:04:28,667 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-06-22 00:04:28,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-06-22 00:04:28,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-06-22 00:04:28,668 INFO L87 Difference]: Start difference. First operand 48 states and 98 transitions. Second operand 4 states. [2020-06-22 00:04:28,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:04:28,906 INFO L93 Difference]: Finished difference Result 119 states and 230 transitions. [2020-06-22 00:04:28,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-06-22 00:04:28,907 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-06-22 00:04:28,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 00:04:28,909 INFO L225 Difference]: With dead ends: 119 [2020-06-22 00:04:28,909 INFO L226 Difference]: Without dead ends: 74 [2020-06-22 00:04:28,910 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-06-22 00:04:28,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-06-22 00:04:28,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 62. [2020-06-22 00:04:28,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-06-22 00:04:28,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 125 transitions. [2020-06-22 00:04:28,919 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 125 transitions. Word has length 6 [2020-06-22 00:04:28,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 00:04:28,919 INFO L480 AbstractCegarLoop]: Abstraction has 62 states and 125 transitions. [2020-06-22 00:04:28,920 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-06-22 00:04:28,920 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 125 transitions. [2020-06-22 00:04:28,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-06-22 00:04:28,920 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 00:04:28,921 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-06-22 00:04:28,921 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION]=== [2020-06-22 00:04:28,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:04:28,921 INFO L82 PathProgramCache]: Analyzing trace with hash 1170389715, now seen corresponding path program 1 times [2020-06-22 00:04:28,922 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:04:28,922 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:04:28,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:04:28,923 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:04:28,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:04:28,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:04:28,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:04:28,972 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 00:04:28,972 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-06-22 00:04:28,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-06-22 00:04:28,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-06-22 00:04:28,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-06-22 00:04:28,973 INFO L87 Difference]: Start difference. First operand 62 states and 125 transitions. Second operand 4 states. [2020-06-22 00:04:29,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:04:29,207 INFO L93 Difference]: Finished difference Result 74 states and 125 transitions. [2020-06-22 00:04:29,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-06-22 00:04:29,208 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-06-22 00:04:29,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 00:04:29,209 INFO L225 Difference]: With dead ends: 74 [2020-06-22 00:04:29,209 INFO L226 Difference]: Without dead ends: 61 [2020-06-22 00:04:29,210 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-06-22 00:04:29,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-06-22 00:04:29,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2020-06-22 00:04:29,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-06-22 00:04:29,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 111 transitions. [2020-06-22 00:04:29,218 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 111 transitions. Word has length 6 [2020-06-22 00:04:29,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 00:04:29,218 INFO L480 AbstractCegarLoop]: Abstraction has 61 states and 111 transitions. [2020-06-22 00:04:29,218 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-06-22 00:04:29,218 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 111 transitions. [2020-06-22 00:04:29,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-06-22 00:04:29,219 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 00:04:29,219 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 00:04:29,219 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION]=== [2020-06-22 00:04:29,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:04:29,220 INFO L82 PathProgramCache]: Analyzing trace with hash -1720998587, now seen corresponding path program 1 times [2020-06-22 00:04:29,220 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:04:29,220 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:04:29,221 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:04:29,221 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:04:29,221 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:04:29,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:04:29,274 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:04:29,274 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 00:04:29,274 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-06-22 00:04:29,275 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-06-22 00:04:29,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-06-22 00:04:29,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-06-22 00:04:29,275 INFO L87 Difference]: Start difference. First operand 61 states and 111 transitions. Second operand 5 states. [2020-06-22 00:04:29,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:04:29,530 INFO L93 Difference]: Finished difference Result 85 states and 149 transitions. [2020-06-22 00:04:29,531 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-06-22 00:04:29,531 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-06-22 00:04:29,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 00:04:29,532 INFO L225 Difference]: With dead ends: 85 [2020-06-22 00:04:29,532 INFO L226 Difference]: Without dead ends: 66 [2020-06-22 00:04:29,533 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-06-22 00:04:29,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-06-22 00:04:29,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 63. [2020-06-22 00:04:29,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-06-22 00:04:29,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 113 transitions. [2020-06-22 00:04:29,540 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 113 transitions. Word has length 11 [2020-06-22 00:04:29,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 00:04:29,541 INFO L480 AbstractCegarLoop]: Abstraction has 63 states and 113 transitions. [2020-06-22 00:04:29,541 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-06-22 00:04:29,541 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 113 transitions. [2020-06-22 00:04:29,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-06-22 00:04:29,542 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 00:04:29,542 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 00:04:29,542 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION]=== [2020-06-22 00:04:29,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:04:29,542 INFO L82 PathProgramCache]: Analyzing trace with hash 494705892, now seen corresponding path program 1 times [2020-06-22 00:04:29,543 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:04:29,543 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:04:29,544 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:04:29,544 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:04:29,544 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:04:29,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:04:29,591 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:04:29,591 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 00:04:29,591 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-06-22 00:04:29,592 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-06-22 00:04:29,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 00:04:29,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 00:04:29,592 INFO L87 Difference]: Start difference. First operand 63 states and 113 transitions. Second operand 3 states. [2020-06-22 00:04:29,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:04:29,706 INFO L93 Difference]: Finished difference Result 122 states and 213 transitions. [2020-06-22 00:04:29,707 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-22 00:04:29,707 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-06-22 00:04:29,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 00:04:29,708 INFO L225 Difference]: With dead ends: 122 [2020-06-22 00:04:29,708 INFO L226 Difference]: Without dead ends: 74 [2020-06-22 00:04:29,709 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 00:04:29,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-06-22 00:04:29,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 63. [2020-06-22 00:04:29,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-06-22 00:04:29,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 105 transitions. [2020-06-22 00:04:29,715 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 105 transitions. Word has length 12 [2020-06-22 00:04:29,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 00:04:29,716 INFO L480 AbstractCegarLoop]: Abstraction has 63 states and 105 transitions. [2020-06-22 00:04:29,716 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-06-22 00:04:29,716 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 105 transitions. [2020-06-22 00:04:29,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-06-22 00:04:29,716 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 00:04:29,717 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 00:04:29,717 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION]=== [2020-06-22 00:04:29,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:04:29,717 INFO L82 PathProgramCache]: Analyzing trace with hash 496552934, now seen corresponding path program 1 times [2020-06-22 00:04:29,717 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:04:29,717 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:04:29,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:04:29,719 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:04:29,719 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:04:29,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:04:29,768 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:04:29,768 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 00:04:29,768 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-06-22 00:04:29,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-06-22 00:04:29,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-06-22 00:04:29,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-06-22 00:04:29,769 INFO L87 Difference]: Start difference. First operand 63 states and 105 transitions. Second operand 5 states. [2020-06-22 00:04:29,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:04:29,973 INFO L93 Difference]: Finished difference Result 75 states and 121 transitions. [2020-06-22 00:04:29,973 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-06-22 00:04:29,973 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-06-22 00:04:29,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 00:04:29,974 INFO L225 Difference]: With dead ends: 75 [2020-06-22 00:04:29,974 INFO L226 Difference]: Without dead ends: 72 [2020-06-22 00:04:29,975 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-06-22 00:04:29,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-06-22 00:04:29,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 60. [2020-06-22 00:04:29,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-06-22 00:04:29,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 99 transitions. [2020-06-22 00:04:29,981 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 99 transitions. Word has length 12 [2020-06-22 00:04:29,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 00:04:29,982 INFO L480 AbstractCegarLoop]: Abstraction has 60 states and 99 transitions. [2020-06-22 00:04:29,982 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-06-22 00:04:29,982 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 99 transitions. [2020-06-22 00:04:29,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-06-22 00:04:29,982 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 00:04:29,983 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 00:04:29,983 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION]=== [2020-06-22 00:04:29,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:04:29,983 INFO L82 PathProgramCache]: Analyzing trace with hash 496552936, now seen corresponding path program 1 times [2020-06-22 00:04:29,983 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:04:29,983 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:04:29,984 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:04:29,985 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:04:29,985 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:04:29,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:04:30,026 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:04:30,027 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 00:04:30,027 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-06-22 00:04:30,027 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-06-22 00:04:30,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-06-22 00:04:30,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-06-22 00:04:30,028 INFO L87 Difference]: Start difference. First operand 60 states and 99 transitions. Second operand 5 states. [2020-06-22 00:04:30,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:04:30,254 INFO L93 Difference]: Finished difference Result 78 states and 115 transitions. [2020-06-22 00:04:30,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-06-22 00:04:30,254 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-06-22 00:04:30,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 00:04:30,255 INFO L225 Difference]: With dead ends: 78 [2020-06-22 00:04:30,255 INFO L226 Difference]: Without dead ends: 71 [2020-06-22 00:04:30,256 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-06-22 00:04:30,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-06-22 00:04:30,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 60. [2020-06-22 00:04:30,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-06-22 00:04:30,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 92 transitions. [2020-06-22 00:04:30,262 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 92 transitions. Word has length 12 [2020-06-22 00:04:30,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 00:04:30,262 INFO L480 AbstractCegarLoop]: Abstraction has 60 states and 92 transitions. [2020-06-22 00:04:30,262 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-06-22 00:04:30,263 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 92 transitions. [2020-06-22 00:04:30,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-06-22 00:04:30,263 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 00:04:30,263 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 00:04:30,264 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION]=== [2020-06-22 00:04:30,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:04:30,264 INFO L82 PathProgramCache]: Analyzing trace with hash 496552937, now seen corresponding path program 1 times [2020-06-22 00:04:30,264 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:04:30,264 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:04:30,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:04:30,265 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:04:30,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:04:30,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:04:30,323 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:04:30,324 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 00:04:30,324 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-06-22 00:04:30,324 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-06-22 00:04:30,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-06-22 00:04:30,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-06-22 00:04:30,325 INFO L87 Difference]: Start difference. First operand 60 states and 92 transitions. Second operand 5 states. [2020-06-22 00:04:30,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:04:30,566 INFO L93 Difference]: Finished difference Result 71 states and 108 transitions. [2020-06-22 00:04:30,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-06-22 00:04:30,568 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-06-22 00:04:30,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 00:04:30,569 INFO L225 Difference]: With dead ends: 71 [2020-06-22 00:04:30,569 INFO L226 Difference]: Without dead ends: 64 [2020-06-22 00:04:30,569 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-06-22 00:04:30,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-06-22 00:04:30,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 43. [2020-06-22 00:04:30,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-06-22 00:04:30,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 71 transitions. [2020-06-22 00:04:30,574 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 71 transitions. Word has length 12 [2020-06-22 00:04:30,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 00:04:30,574 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 71 transitions. [2020-06-22 00:04:30,575 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-06-22 00:04:30,575 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 71 transitions. [2020-06-22 00:04:30,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-06-22 00:04:30,575 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 00:04:30,575 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 00:04:30,576 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION]=== [2020-06-22 00:04:30,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:04:30,576 INFO L82 PathProgramCache]: Analyzing trace with hash -196903919, now seen corresponding path program 1 times [2020-06-22 00:04:30,576 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:04:30,576 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:04:30,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:04:30,577 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:04:30,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:04:30,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:04:30,657 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:04:30,657 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 00:04:30,658 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-06-22 00:04:30,658 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-06-22 00:04:30,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-06-22 00:04:30,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-06-22 00:04:30,659 INFO L87 Difference]: Start difference. First operand 43 states and 71 transitions. Second operand 7 states. [2020-06-22 00:04:30,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:04:30,899 INFO L93 Difference]: Finished difference Result 64 states and 101 transitions. [2020-06-22 00:04:30,899 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-06-22 00:04:30,900 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2020-06-22 00:04:30,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 00:04:30,900 INFO L225 Difference]: With dead ends: 64 [2020-06-22 00:04:30,901 INFO L226 Difference]: Without dead ends: 50 [2020-06-22 00:04:30,901 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-06-22 00:04:30,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-06-22 00:04:30,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 40. [2020-06-22 00:04:30,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-06-22 00:04:30,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 67 transitions. [2020-06-22 00:04:30,905 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 67 transitions. Word has length 13 [2020-06-22 00:04:30,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 00:04:30,905 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 67 transitions. [2020-06-22 00:04:30,906 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-06-22 00:04:30,906 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 67 transitions. [2020-06-22 00:04:30,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-06-22 00:04:30,906 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 00:04:30,906 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 00:04:30,907 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION]=== [2020-06-22 00:04:30,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:04:30,907 INFO L82 PathProgramCache]: Analyzing trace with hash 1598214639, now seen corresponding path program 1 times [2020-06-22 00:04:30,907 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:04:30,907 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:04:30,908 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:04:30,908 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:04:30,908 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:04:30,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:04:31,050 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:04:31,050 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2020-06-22 00:04:31,050 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2020-06-22 00:04:31,066 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:04:31,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:04:31,092 INFO L256 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 21 conjunts are in the unsatisfiable core [2020-06-22 00:04:31,098 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 00:04:31,195 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-06-22 00:04:31,196 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:31,206 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:31,207 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:31,207 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:18 [2020-06-22 00:04:31,259 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:04:31,259 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:31,274 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:31,275 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:31,276 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:34, output treesize:33 [2020-06-22 00:04:31,357 INFO L340 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2020-06-22 00:04:31,358 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 31 [2020-06-22 00:04:31,363 INFO L427 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:04:31,392 INFO L497 ElimStorePlain]: treesize reduction 10, result has 75.0 percent of original size [2020-06-22 00:04:31,394 INFO L427 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:04:31,394 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:54, output treesize:30 [2020-06-22 00:04:31,470 INFO L172 IndexEqualityManager]: detected equality via solver [2020-06-22 00:04:31,471 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 12 [2020-06-22 00:04:31,472 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:31,482 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:31,483 INFO L427 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:31,483 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:42, output treesize:9 [2020-06-22 00:04:31,505 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:04:31,533 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-06-22 00:04:31,534 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11] total 18 [2020-06-22 00:04:31,534 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-06-22 00:04:31,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-06-22 00:04:31,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2020-06-22 00:04:31,535 INFO L87 Difference]: Start difference. First operand 40 states and 67 transitions. Second operand 19 states. [2020-06-22 00:04:32,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:04:32,860 INFO L93 Difference]: Finished difference Result 192 states and 318 transitions. [2020-06-22 00:04:32,861 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-06-22 00:04:32,861 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 17 [2020-06-22 00:04:32,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 00:04:32,863 INFO L225 Difference]: With dead ends: 192 [2020-06-22 00:04:32,863 INFO L226 Difference]: Without dead ends: 155 [2020-06-22 00:04:32,864 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=232, Invalid=760, Unknown=0, NotChecked=0, Total=992 [2020-06-22 00:04:32,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2020-06-22 00:04:32,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 66. [2020-06-22 00:04:32,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-06-22 00:04:32,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 108 transitions. [2020-06-22 00:04:32,872 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 108 transitions. Word has length 17 [2020-06-22 00:04:32,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 00:04:32,873 INFO L480 AbstractCegarLoop]: Abstraction has 66 states and 108 transitions. [2020-06-22 00:04:32,873 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-06-22 00:04:32,873 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 108 transitions. [2020-06-22 00:04:32,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-06-22 00:04:32,874 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 00:04:32,874 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 00:04:32,874 INFO L423 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION]=== [2020-06-22 00:04:32,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:04:32,875 INFO L82 PathProgramCache]: Analyzing trace with hash 1598214641, now seen corresponding path program 1 times [2020-06-22 00:04:32,875 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:04:32,875 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:04:32,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:04:32,876 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:04:32,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:04:32,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:04:33,027 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:04:33,028 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2020-06-22 00:04:33,028 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2020-06-22 00:04:33,040 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:04:33,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:04:33,066 INFO L256 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 20 conjunts are in the unsatisfiable core [2020-06-22 00:04:33,068 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 00:04:33,187 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:04:33,187 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:33,205 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:33,211 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:04:33,212 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:33,231 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:33,232 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:33,232 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:47, output treesize:33 [2020-06-22 00:04:33,272 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-06-22 00:04:33,272 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:33,280 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:33,281 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:33,281 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:19 [2020-06-22 00:04:33,317 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:04:33,319 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2020-06-22 00:04:33,319 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:33,328 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:33,328 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:33,329 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:34, output treesize:16 [2020-06-22 00:04:33,360 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-06-22 00:04:33,361 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:33,365 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:33,365 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:33,365 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:20, output treesize:3 [2020-06-22 00:04:33,379 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:04:33,406 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-06-22 00:04:33,407 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11] total 17 [2020-06-22 00:04:33,407 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-06-22 00:04:33,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-06-22 00:04:33,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2020-06-22 00:04:33,408 INFO L87 Difference]: Start difference. First operand 66 states and 108 transitions. Second operand 18 states. [2020-06-22 00:04:34,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:04:34,354 INFO L93 Difference]: Finished difference Result 175 states and 266 transitions. [2020-06-22 00:04:34,354 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-06-22 00:04:34,354 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 17 [2020-06-22 00:04:34,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 00:04:34,356 INFO L225 Difference]: With dead ends: 175 [2020-06-22 00:04:34,356 INFO L226 Difference]: Without dead ends: 170 [2020-06-22 00:04:34,357 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=238, Invalid=574, Unknown=0, NotChecked=0, Total=812 [2020-06-22 00:04:34,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-06-22 00:04:34,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 81. [2020-06-22 00:04:34,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-06-22 00:04:34,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 128 transitions. [2020-06-22 00:04:34,366 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 128 transitions. Word has length 17 [2020-06-22 00:04:34,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 00:04:34,366 INFO L480 AbstractCegarLoop]: Abstraction has 81 states and 128 transitions. [2020-06-22 00:04:34,366 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-06-22 00:04:34,366 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 128 transitions. [2020-06-22 00:04:34,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-06-22 00:04:34,367 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 00:04:34,367 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 00:04:34,368 INFO L423 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION]=== [2020-06-22 00:04:34,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:04:34,368 INFO L82 PathProgramCache]: Analyzing trace with hash 1598214642, now seen corresponding path program 1 times [2020-06-22 00:04:34,368 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:04:34,368 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:04:34,369 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:04:34,370 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:04:34,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:04:34,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:04:34,514 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:04:34,514 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2020-06-22 00:04:34,514 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2020-06-22 00:04:34,526 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:04:34,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:04:34,593 INFO L256 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 26 conjunts are in the unsatisfiable core [2020-06-22 00:04:34,595 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 00:04:34,640 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-06-22 00:04:34,640 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:34,651 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:34,652 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:34,652 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:21 [2020-06-22 00:04:34,709 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:04:34,710 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:34,728 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:34,733 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:04:34,733 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:34,749 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:34,750 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:34,750 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:50, output treesize:42 [2020-06-22 00:04:34,859 INFO L340 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2020-06-22 00:04:34,859 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 31 [2020-06-22 00:04:34,862 INFO L427 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:04:34,902 INFO L497 ElimStorePlain]: treesize reduction 10, result has 84.4 percent of original size [2020-06-22 00:04:34,907 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:04:34,908 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2020-06-22 00:04:34,909 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:34,924 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:34,925 INFO L427 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:04:34,925 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:78, output treesize:39 [2020-06-22 00:04:34,996 INFO L172 IndexEqualityManager]: detected equality via solver [2020-06-22 00:04:34,997 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 12 [2020-06-22 00:04:34,998 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:35,019 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:35,024 INFO L172 IndexEqualityManager]: detected equality via solver [2020-06-22 00:04:35,025 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2020-06-22 00:04:35,026 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:35,037 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:35,038 INFO L427 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:35,038 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:60, output treesize:12 [2020-06-22 00:04:35,061 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:04:35,090 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-06-22 00:04:35,090 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11] total 18 [2020-06-22 00:04:35,090 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-06-22 00:04:35,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-06-22 00:04:35,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2020-06-22 00:04:35,091 INFO L87 Difference]: Start difference. First operand 81 states and 128 transitions. Second operand 19 states. [2020-06-22 00:04:36,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:04:36,311 INFO L93 Difference]: Finished difference Result 172 states and 265 transitions. [2020-06-22 00:04:36,312 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-06-22 00:04:36,312 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 17 [2020-06-22 00:04:36,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 00:04:36,313 INFO L225 Difference]: With dead ends: 172 [2020-06-22 00:04:36,313 INFO L226 Difference]: Without dead ends: 165 [2020-06-22 00:04:36,314 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=178, Invalid=634, Unknown=0, NotChecked=0, Total=812 [2020-06-22 00:04:36,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2020-06-22 00:04:36,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 80. [2020-06-22 00:04:36,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-06-22 00:04:36,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 126 transitions. [2020-06-22 00:04:36,322 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 126 transitions. Word has length 17 [2020-06-22 00:04:36,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 00:04:36,322 INFO L480 AbstractCegarLoop]: Abstraction has 80 states and 126 transitions. [2020-06-22 00:04:36,322 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-06-22 00:04:36,323 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 126 transitions. [2020-06-22 00:04:36,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-06-22 00:04:36,323 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 00:04:36,324 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 00:04:36,324 INFO L423 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION]=== [2020-06-22 00:04:36,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:04:36,324 INFO L82 PathProgramCache]: Analyzing trace with hash -395250223, now seen corresponding path program 1 times [2020-06-22 00:04:36,324 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:04:36,324 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:04:36,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:04:36,325 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:04:36,326 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:04:36,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:04:36,450 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:04:36,450 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2020-06-22 00:04:36,451 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2020-06-22 00:04:36,466 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:04:36,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:04:36,487 INFO L256 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 26 conjunts are in the unsatisfiable core [2020-06-22 00:04:36,489 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 00:04:36,496 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-06-22 00:04:36,497 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:36,504 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:36,504 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:36,504 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-06-22 00:04:36,579 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:36,579 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2020-06-22 00:04:36,580 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:36,593 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:36,593 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:36,594 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:17 [2020-06-22 00:04:36,626 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:04:36,627 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:36,641 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:36,646 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:04:36,647 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:36,662 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:36,664 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:36,664 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:43, output treesize:29 [2020-06-22 00:04:36,699 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2020-06-22 00:04:36,700 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:36,707 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:36,707 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:36,708 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:15 [2020-06-22 00:04:36,730 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2020-06-22 00:04:36,730 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:36,736 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:36,737 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:36,737 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:30, output treesize:11 [2020-06-22 00:04:36,759 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-06-22 00:04:36,759 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:36,761 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:36,761 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:36,761 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2020-06-22 00:04:36,775 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:04:36,804 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-06-22 00:04:36,805 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 15 [2020-06-22 00:04:36,805 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-06-22 00:04:36,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-06-22 00:04:36,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2020-06-22 00:04:36,806 INFO L87 Difference]: Start difference. First operand 80 states and 126 transitions. Second operand 16 states. [2020-06-22 00:04:37,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:04:37,423 INFO L93 Difference]: Finished difference Result 133 states and 200 transitions. [2020-06-22 00:04:37,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-06-22 00:04:37,424 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 17 [2020-06-22 00:04:37,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 00:04:37,425 INFO L225 Difference]: With dead ends: 133 [2020-06-22 00:04:37,425 INFO L226 Difference]: Without dead ends: 131 [2020-06-22 00:04:37,426 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2020-06-22 00:04:37,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-06-22 00:04:37,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 100. [2020-06-22 00:04:37,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-06-22 00:04:37,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 159 transitions. [2020-06-22 00:04:37,434 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 159 transitions. Word has length 17 [2020-06-22 00:04:37,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 00:04:37,434 INFO L480 AbstractCegarLoop]: Abstraction has 100 states and 159 transitions. [2020-06-22 00:04:37,434 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-06-22 00:04:37,434 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 159 transitions. [2020-06-22 00:04:37,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-06-22 00:04:37,435 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 00:04:37,435 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 00:04:37,435 INFO L423 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION]=== [2020-06-22 00:04:37,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:04:37,436 INFO L82 PathProgramCache]: Analyzing trace with hash -395250222, now seen corresponding path program 1 times [2020-06-22 00:04:37,436 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:04:37,436 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:04:37,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:04:37,437 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:04:37,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:04:37,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:04:37,618 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:04:37,618 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2020-06-22 00:04:37,618 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2020-06-22 00:04:37,636 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:04:37,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:04:37,673 INFO L256 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 30 conjunts are in the unsatisfiable core [2020-06-22 00:04:37,674 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 00:04:37,685 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-06-22 00:04:37,685 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:37,690 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:37,690 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:37,690 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-06-22 00:04:37,732 INFO L388 ElimStorePlain]: Different consts {0=[|v_#length_37|], 1=[|v_#valid_42|]} [2020-06-22 00:04:37,736 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-06-22 00:04:37,736 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:37,748 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:37,758 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:37,758 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2020-06-22 00:04:37,759 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:37,769 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:37,770 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:37,770 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:22 [2020-06-22 00:04:37,797 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:04:37,798 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:37,813 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:37,817 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:04:37,817 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:37,832 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:37,833 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:37,833 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:48, output treesize:40 [2020-06-22 00:04:37,901 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:37,901 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 88 treesize of output 82 [2020-06-22 00:04:37,905 INFO L427 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:04:37,935 INFO L497 ElimStorePlain]: treesize reduction 34, result has 59.0 percent of original size [2020-06-22 00:04:37,940 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2020-06-22 00:04:37,940 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:37,952 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:37,953 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:04:37,954 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:103, output treesize:37 [2020-06-22 00:04:38,012 INFO L172 IndexEqualityManager]: detected equality via solver [2020-06-22 00:04:38,013 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2020-06-22 00:04:38,014 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:38,026 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:38,029 INFO L172 IndexEqualityManager]: detected equality via solver [2020-06-22 00:04:38,030 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2020-06-22 00:04:38,031 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:38,039 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:38,040 INFO L427 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:38,040 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:58, output treesize:9 [2020-06-22 00:04:38,058 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:04:38,084 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-06-22 00:04:38,085 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 16 [2020-06-22 00:04:38,085 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-06-22 00:04:38,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-06-22 00:04:38,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2020-06-22 00:04:38,086 INFO L87 Difference]: Start difference. First operand 100 states and 159 transitions. Second operand 17 states. [2020-06-22 00:04:38,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:04:38,741 INFO L93 Difference]: Finished difference Result 129 states and 194 transitions. [2020-06-22 00:04:38,741 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-06-22 00:04:38,741 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 17 [2020-06-22 00:04:38,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 00:04:38,742 INFO L225 Difference]: With dead ends: 129 [2020-06-22 00:04:38,742 INFO L226 Difference]: Without dead ends: 123 [2020-06-22 00:04:38,743 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2020-06-22 00:04:38,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-06-22 00:04:38,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 86. [2020-06-22 00:04:38,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-06-22 00:04:38,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 136 transitions. [2020-06-22 00:04:38,749 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 136 transitions. Word has length 17 [2020-06-22 00:04:38,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 00:04:38,749 INFO L480 AbstractCegarLoop]: Abstraction has 86 states and 136 transitions. [2020-06-22 00:04:38,750 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-06-22 00:04:38,750 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 136 transitions. [2020-06-22 00:04:38,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-06-22 00:04:38,750 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 00:04:38,750 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 00:04:38,751 INFO L423 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION]=== [2020-06-22 00:04:38,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:04:38,751 INFO L82 PathProgramCache]: Analyzing trace with hash -419871347, now seen corresponding path program 1 times [2020-06-22 00:04:38,751 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:04:38,751 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:04:38,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:04:38,752 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:04:38,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:04:38,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:04:38,873 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:04:38,874 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2020-06-22 00:04:38,874 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2020-06-22 00:04:38,884 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:04:38,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:04:38,903 INFO L256 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 25 conjunts are in the unsatisfiable core [2020-06-22 00:04:38,904 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 00:04:38,912 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-06-22 00:04:38,912 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:38,916 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:38,916 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:38,916 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-06-22 00:04:38,968 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:38,968 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2020-06-22 00:04:38,969 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:38,991 INFO L497 ElimStorePlain]: treesize reduction 14, result has 63.2 percent of original size [2020-06-22 00:04:38,992 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:38,992 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:24 [2020-06-22 00:04:39,017 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:04:39,018 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:39,029 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:39,029 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:39,029 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:37, output treesize:36 [2020-06-22 00:04:39,092 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:39,093 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 67 [2020-06-22 00:04:39,094 INFO L427 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:39,111 INFO L497 ElimStorePlain]: treesize reduction 36, result has 47.8 percent of original size [2020-06-22 00:04:39,112 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:04:39,112 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:66, output treesize:33 [2020-06-22 00:04:39,164 INFO L172 IndexEqualityManager]: detected equality via solver [2020-06-22 00:04:39,165 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2020-06-22 00:04:39,165 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:39,174 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:39,174 INFO L427 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:04:39,175 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:45, output treesize:15 [2020-06-22 00:04:39,194 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:04:39,220 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-06-22 00:04:39,220 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 16 [2020-06-22 00:04:39,220 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-06-22 00:04:39,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-06-22 00:04:39,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2020-06-22 00:04:39,221 INFO L87 Difference]: Start difference. First operand 86 states and 136 transitions. Second operand 17 states. [2020-06-22 00:04:39,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:04:39,884 INFO L93 Difference]: Finished difference Result 105 states and 158 transitions. [2020-06-22 00:04:39,885 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-06-22 00:04:39,885 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 17 [2020-06-22 00:04:39,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 00:04:39,886 INFO L225 Difference]: With dead ends: 105 [2020-06-22 00:04:39,886 INFO L226 Difference]: Without dead ends: 103 [2020-06-22 00:04:39,886 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2020-06-22 00:04:39,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-06-22 00:04:39,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 69. [2020-06-22 00:04:39,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-06-22 00:04:39,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 107 transitions. [2020-06-22 00:04:39,892 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 107 transitions. Word has length 17 [2020-06-22 00:04:39,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 00:04:39,893 INFO L480 AbstractCegarLoop]: Abstraction has 69 states and 107 transitions. [2020-06-22 00:04:39,893 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-06-22 00:04:39,893 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 107 transitions. [2020-06-22 00:04:39,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-06-22 00:04:39,894 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 00:04:39,894 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 00:04:39,894 INFO L423 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION]=== [2020-06-22 00:04:39,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:04:39,894 INFO L82 PathProgramCache]: Analyzing trace with hash -1599062114, now seen corresponding path program 2 times [2020-06-22 00:04:39,894 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:04:39,895 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:04:39,895 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:04:39,895 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:04:39,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:04:39,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:04:40,043 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:04:40,044 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2020-06-22 00:04:40,044 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2020-06-22 00:04:40,061 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2020-06-22 00:04:40,088 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-06-22 00:04:40,089 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-06-22 00:04:40,090 INFO L256 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 31 conjunts are in the unsatisfiable core [2020-06-22 00:04:40,092 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 00:04:40,138 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:04:40,139 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:40,154 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:40,157 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:04:40,157 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:40,168 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:40,169 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:40,169 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:44, output treesize:24 [2020-06-22 00:04:40,236 INFO L388 ElimStorePlain]: Different consts {0=[|v_#memory_int_16|], 2=[|v_#memory_$Pointer$.base_32|, |v_#memory_$Pointer$.offset_30|]} [2020-06-22 00:04:40,241 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2020-06-22 00:04:40,242 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:40,260 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:40,282 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:40,282 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 93 treesize of output 107 [2020-06-22 00:04:40,288 INFO L427 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:04:40,322 INFO L497 ElimStorePlain]: treesize reduction 40, result has 57.0 percent of original size [2020-06-22 00:04:40,327 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:04:40,328 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 29 [2020-06-22 00:04:40,328 INFO L427 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:40,339 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:40,339 INFO L427 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:40,339 INFO L217 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:109, output treesize:31 [2020-06-22 00:04:40,373 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18 [2020-06-22 00:04:40,373 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:40,382 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:40,385 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2020-06-22 00:04:40,386 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:40,392 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:40,393 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:40,393 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:42, output treesize:11 [2020-06-22 00:04:40,420 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-06-22 00:04:40,420 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:40,424 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:40,425 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:40,425 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:18, output treesize:3 [2020-06-22 00:04:40,427 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:04:40,455 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-06-22 00:04:40,456 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 16 [2020-06-22 00:04:40,456 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-06-22 00:04:40,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-06-22 00:04:40,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2020-06-22 00:04:40,457 INFO L87 Difference]: Start difference. First operand 69 states and 107 transitions. Second operand 16 states. [2020-06-22 00:04:41,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:04:41,022 INFO L93 Difference]: Finished difference Result 171 states and 257 transitions. [2020-06-22 00:04:41,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-06-22 00:04:41,022 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 20 [2020-06-22 00:04:41,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 00:04:41,024 INFO L225 Difference]: With dead ends: 171 [2020-06-22 00:04:41,024 INFO L226 Difference]: Without dead ends: 152 [2020-06-22 00:04:41,024 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 13 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2020-06-22 00:04:41,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-06-22 00:04:41,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 83. [2020-06-22 00:04:41,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-06-22 00:04:41,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 129 transitions. [2020-06-22 00:04:41,032 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 129 transitions. Word has length 20 [2020-06-22 00:04:41,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 00:04:41,032 INFO L480 AbstractCegarLoop]: Abstraction has 83 states and 129 transitions. [2020-06-22 00:04:41,032 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-06-22 00:04:41,032 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 129 transitions. [2020-06-22 00:04:41,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-06-22 00:04:41,033 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 00:04:41,033 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 00:04:41,033 INFO L423 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION]=== [2020-06-22 00:04:41,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:04:41,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1896943550, now seen corresponding path program 1 times [2020-06-22 00:04:41,034 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:04:41,034 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:04:41,035 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:04:41,035 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 00:04:41,035 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:04:41,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:04:41,179 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:04:41,179 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2020-06-22 00:04:41,180 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2020-06-22 00:04:41,192 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:04:41,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:04:41,222 INFO L256 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 36 conjunts are in the unsatisfiable core [2020-06-22 00:04:41,223 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 00:04:41,235 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-06-22 00:04:41,235 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:41,240 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:41,241 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:41,241 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-06-22 00:04:41,286 INFO L388 ElimStorePlain]: Different consts {0=[|v_#length_38|], 1=[|v_#valid_46|]} [2020-06-22 00:04:41,290 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-06-22 00:04:41,290 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:41,303 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:41,311 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:41,312 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2020-06-22 00:04:41,312 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:41,322 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:41,322 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:41,323 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:22 [2020-06-22 00:04:41,351 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:04:41,352 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:41,366 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:41,370 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:04:41,371 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:41,385 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:41,385 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:41,386 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:48, output treesize:40 [2020-06-22 00:04:41,416 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-06-22 00:04:41,416 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:41,425 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:41,425 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:41,425 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:42, output treesize:31 [2020-06-22 00:04:41,453 INFO L388 ElimStorePlain]: Different consts {0=[|v_#memory_int_17|], 2=[|v_#memory_$Pointer$.base_34|]} [2020-06-22 00:04:41,457 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2020-06-22 00:04:41,457 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:41,474 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:41,478 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:04:41,479 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 38 [2020-06-22 00:04:41,479 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:41,492 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:41,493 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:04:41,493 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:73, output treesize:38 [2020-06-22 00:04:41,533 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 20 [2020-06-22 00:04:41,534 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:41,545 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:41,546 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:04:41,546 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:42, output treesize:19 [2020-06-22 00:04:41,581 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:41,581 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2020-06-22 00:04:41,582 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-06-22 00:04:41,593 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:41,596 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:41,596 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:29, output treesize:21 [2020-06-22 00:04:41,662 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:04:41,690 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-06-22 00:04:41,690 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12] total 19 [2020-06-22 00:04:41,691 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-06-22 00:04:41,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-06-22 00:04:41,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2020-06-22 00:04:41,692 INFO L87 Difference]: Start difference. First operand 83 states and 129 transitions. Second operand 19 states. [2020-06-22 00:04:42,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:04:42,604 INFO L93 Difference]: Finished difference Result 117 states and 177 transitions. [2020-06-22 00:04:42,605 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-06-22 00:04:42,605 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 20 [2020-06-22 00:04:42,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 00:04:42,606 INFO L225 Difference]: With dead ends: 117 [2020-06-22 00:04:42,606 INFO L226 Difference]: Without dead ends: 98 [2020-06-22 00:04:42,607 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=99, Invalid=501, Unknown=0, NotChecked=0, Total=600 [2020-06-22 00:04:42,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-06-22 00:04:42,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 71. [2020-06-22 00:04:42,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-06-22 00:04:42,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 109 transitions. [2020-06-22 00:04:42,613 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 109 transitions. Word has length 20 [2020-06-22 00:04:42,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 00:04:42,613 INFO L480 AbstractCegarLoop]: Abstraction has 71 states and 109 transitions. [2020-06-22 00:04:42,613 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-06-22 00:04:42,614 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 109 transitions. [2020-06-22 00:04:42,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-06-22 00:04:42,614 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 00:04:42,614 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 00:04:42,614 INFO L423 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION]=== [2020-06-22 00:04:42,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:04:42,615 INFO L82 PathProgramCache]: Analyzing trace with hash 1019929642, now seen corresponding path program 1 times [2020-06-22 00:04:42,615 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:04:42,615 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:04:42,616 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:04:42,616 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:04:42,616 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:04:42,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:04:42,796 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:04:42,797 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2020-06-22 00:04:42,797 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2020-06-22 00:04:42,811 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:04:42,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:04:42,838 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 27 conjunts are in the unsatisfiable core [2020-06-22 00:04:42,839 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 00:04:42,918 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:04:42,918 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:42,931 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:42,935 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:04:42,935 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:42,948 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:42,948 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:42,949 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:42, output treesize:22 [2020-06-22 00:04:43,012 INFO L388 ElimStorePlain]: Different consts {0=[|v_#memory_int_18|], 2=[|v_#memory_$Pointer$.base_36|, |v_#memory_$Pointer$.offset_33|]} [2020-06-22 00:04:43,017 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2020-06-22 00:04:43,018 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:43,039 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:43,064 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:43,064 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 119 treesize of output 131 [2020-06-22 00:04:43,069 INFO L427 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:04:43,112 INFO L497 ElimStorePlain]: treesize reduction 52, result has 54.4 percent of original size [2020-06-22 00:04:43,119 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:04:43,120 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2020-06-22 00:04:43,121 INFO L427 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:43,134 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:43,135 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:04:43,135 INFO L217 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:138, output treesize:38 [2020-06-22 00:04:43,216 INFO L172 IndexEqualityManager]: detected equality via solver [2020-06-22 00:04:43,217 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 20 [2020-06-22 00:04:43,218 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:43,233 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:43,236 INFO L172 IndexEqualityManager]: detected equality via solver [2020-06-22 00:04:43,237 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2020-06-22 00:04:43,237 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:43,248 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:43,248 INFO L427 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:43,249 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:59, output treesize:11 [2020-06-22 00:04:43,277 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-06-22 00:04:43,277 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:43,282 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:43,282 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:43,282 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:18, output treesize:3 [2020-06-22 00:04:43,306 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:04:43,333 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-06-22 00:04:43,334 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2020-06-22 00:04:43,334 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-06-22 00:04:43,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-06-22 00:04:43,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=394, Unknown=0, NotChecked=0, Total=462 [2020-06-22 00:04:43,335 INFO L87 Difference]: Start difference. First operand 71 states and 109 transitions. Second operand 22 states. [2020-06-22 00:04:44,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:04:44,454 INFO L93 Difference]: Finished difference Result 166 states and 246 transitions. [2020-06-22 00:04:44,454 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-06-22 00:04:44,454 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 22 [2020-06-22 00:04:44,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 00:04:44,455 INFO L225 Difference]: With dead ends: 166 [2020-06-22 00:04:44,455 INFO L226 Difference]: Without dead ends: 146 [2020-06-22 00:04:44,456 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=219, Invalid=971, Unknown=0, NotChecked=0, Total=1190 [2020-06-22 00:04:44,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-06-22 00:04:44,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 79. [2020-06-22 00:04:44,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-06-22 00:04:44,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 122 transitions. [2020-06-22 00:04:44,463 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 122 transitions. Word has length 22 [2020-06-22 00:04:44,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 00:04:44,463 INFO L480 AbstractCegarLoop]: Abstraction has 79 states and 122 transitions. [2020-06-22 00:04:44,463 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-06-22 00:04:44,463 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 122 transitions. [2020-06-22 00:04:44,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-06-22 00:04:44,464 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 00:04:44,464 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 00:04:44,464 INFO L423 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION]=== [2020-06-22 00:04:44,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:04:44,464 INFO L82 PathProgramCache]: Analyzing trace with hash 2016947274, now seen corresponding path program 1 times [2020-06-22 00:04:44,466 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:04:44,466 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:04:44,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:04:44,467 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:04:44,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:04:44,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:04:44,622 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:04:44,622 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2020-06-22 00:04:44,622 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2020-06-22 00:04:44,634 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:04:44,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:04:44,655 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 32 conjunts are in the unsatisfiable core [2020-06-22 00:04:44,657 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 00:04:44,661 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-06-22 00:04:44,662 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:44,665 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:44,665 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:44,665 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-06-22 00:04:44,705 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:44,705 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2020-06-22 00:04:44,706 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:44,711 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:44,711 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:44,711 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:14 [2020-06-22 00:04:44,734 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:04:44,734 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:44,745 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:44,748 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:04:44,748 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:44,757 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:44,758 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:44,758 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:40, output treesize:20 [2020-06-22 00:04:44,803 INFO L388 ElimStorePlain]: Different consts {0=[|v_#memory_int_19|], 2=[|v_#memory_$Pointer$.base_38|, |v_#memory_$Pointer$.offset_35|]} [2020-06-22 00:04:44,807 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2020-06-22 00:04:44,807 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:44,822 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:44,839 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:44,840 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 120 treesize of output 132 [2020-06-22 00:04:44,842 INFO L427 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:04:44,870 INFO L497 ElimStorePlain]: treesize reduction 52, result has 53.6 percent of original size [2020-06-22 00:04:44,874 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2020-06-22 00:04:44,886 INFO L427 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:44,895 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:44,896 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:04:44,896 INFO L217 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:136, output treesize:36 [2020-06-22 00:04:44,953 INFO L172 IndexEqualityManager]: detected equality via solver [2020-06-22 00:04:44,954 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 21 [2020-06-22 00:04:44,954 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:44,967 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:44,970 INFO L172 IndexEqualityManager]: detected equality via solver [2020-06-22 00:04:44,971 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2020-06-22 00:04:44,972 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:44,981 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:44,982 INFO L427 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:44,982 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:57, output treesize:7 [2020-06-22 00:04:44,985 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-06-22 00:04:44,986 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:44,987 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:44,987 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:44,987 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2020-06-22 00:04:45,007 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:04:45,033 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-06-22 00:04:45,033 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 20 [2020-06-22 00:04:45,034 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-06-22 00:04:45,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-06-22 00:04:45,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2020-06-22 00:04:45,035 INFO L87 Difference]: Start difference. First operand 79 states and 122 transitions. Second operand 20 states. [2020-06-22 00:04:45,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:04:45,857 INFO L93 Difference]: Finished difference Result 100 states and 150 transitions. [2020-06-22 00:04:45,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-06-22 00:04:45,858 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 22 [2020-06-22 00:04:45,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 00:04:45,859 INFO L225 Difference]: With dead ends: 100 [2020-06-22 00:04:45,859 INFO L226 Difference]: Without dead ends: 80 [2020-06-22 00:04:45,859 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=175, Invalid=817, Unknown=0, NotChecked=0, Total=992 [2020-06-22 00:04:45,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-06-22 00:04:45,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 62. [2020-06-22 00:04:45,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-06-22 00:04:45,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 97 transitions. [2020-06-22 00:04:45,864 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 97 transitions. Word has length 22 [2020-06-22 00:04:45,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 00:04:45,864 INFO L480 AbstractCegarLoop]: Abstraction has 62 states and 97 transitions. [2020-06-22 00:04:45,864 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-06-22 00:04:45,864 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 97 transitions. [2020-06-22 00:04:45,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-06-22 00:04:45,865 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 00:04:45,865 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 00:04:45,865 INFO L423 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION]=== [2020-06-22 00:04:45,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:04:45,866 INFO L82 PathProgramCache]: Analyzing trace with hash -622045415, now seen corresponding path program 3 times [2020-06-22 00:04:45,866 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:04:45,866 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:04:45,866 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:04:45,867 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:04:45,867 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:04:45,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:04:46,047 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:04:46,048 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2020-06-22 00:04:46,048 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2020-06-22 00:04:46,059 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2020-06-22 00:04:46,087 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-06-22 00:04:46,088 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-06-22 00:04:46,089 INFO L256 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 34 conjunts are in the unsatisfiable core [2020-06-22 00:04:46,091 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 00:04:46,133 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:04:46,134 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:46,147 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:46,150 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:04:46,150 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:46,161 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:46,161 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:46,161 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:44, output treesize:24 [2020-06-22 00:04:46,189 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-06-22 00:04:46,190 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:46,197 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:46,198 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:46,198 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:19 [2020-06-22 00:04:46,224 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:04:46,225 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2020-06-22 00:04:46,226 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:46,234 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:46,234 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:46,234 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:37, output treesize:22 [2020-06-22 00:04:46,262 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-06-22 00:04:46,262 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:46,272 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:46,272 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:46,272 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:28, output treesize:27 [2020-06-22 00:04:46,332 INFO L172 IndexEqualityManager]: detected equality via solver [2020-06-22 00:04:46,341 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:46,341 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 36 [2020-06-22 00:04:46,341 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:46,377 INFO L497 ElimStorePlain]: treesize reduction 12, result has 80.0 percent of original size [2020-06-22 00:04:46,378 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:46,378 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:48, output treesize:51 [2020-06-22 00:04:46,525 INFO L340 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2020-06-22 00:04:46,526 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 50 [2020-06-22 00:04:46,527 INFO L427 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:04:46,538 INFO L172 IndexEqualityManager]: detected equality via solver [2020-06-22 00:04:46,587 INFO L340 Elim1Store]: treesize reduction 44, result has 49.4 percent of original size [2020-06-22 00:04:46,588 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 80 treesize of output 76 [2020-06-22 00:04:46,594 INFO L427 ElimStorePlain]: Start of recursive call 3: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-06-22 00:04:46,710 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2020-06-22 00:04:46,710 INFO L497 ElimStorePlain]: treesize reduction 26, result has 79.0 percent of original size [2020-06-22 00:04:46,714 INFO L427 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2020-06-22 00:04:46,714 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:145, output treesize:111 [2020-06-22 00:04:46,880 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2020-06-22 00:04:46,880 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:46,884 INFO L172 IndexEqualityManager]: detected equality via solver [2020-06-22 00:04:46,889 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:46,889 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 39 [2020-06-22 00:04:46,891 INFO L427 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:04:46,942 INFO L497 ElimStorePlain]: treesize reduction 4, result has 92.9 percent of original size [2020-06-22 00:04:46,943 INFO L427 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2020-06-22 00:04:46,943 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:94, output treesize:32 [2020-06-22 00:04:47,007 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:04:47,035 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-06-22 00:04:47,035 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 14] total 22 [2020-06-22 00:04:47,035 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-06-22 00:04:47,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-06-22 00:04:47,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=418, Unknown=0, NotChecked=0, Total=506 [2020-06-22 00:04:47,036 INFO L87 Difference]: Start difference. First operand 62 states and 97 transitions. Second operand 23 states. [2020-06-22 00:04:48,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:04:48,756 INFO L93 Difference]: Finished difference Result 217 states and 325 transitions. [2020-06-22 00:04:48,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-06-22 00:04:48,756 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 23 [2020-06-22 00:04:48,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 00:04:48,757 INFO L225 Difference]: With dead ends: 217 [2020-06-22 00:04:48,757 INFO L226 Difference]: Without dead ends: 183 [2020-06-22 00:04:48,758 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 9 SyntacticMatches, 4 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 488 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=358, Invalid=1534, Unknown=0, NotChecked=0, Total=1892 [2020-06-22 00:04:48,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2020-06-22 00:04:48,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 93. [2020-06-22 00:04:48,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-06-22 00:04:48,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 147 transitions. [2020-06-22 00:04:48,765 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 147 transitions. Word has length 23 [2020-06-22 00:04:48,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 00:04:48,766 INFO L480 AbstractCegarLoop]: Abstraction has 93 states and 147 transitions. [2020-06-22 00:04:48,766 INFO L481 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-06-22 00:04:48,766 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 147 transitions. [2020-06-22 00:04:48,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-06-22 00:04:48,766 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 00:04:48,767 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 00:04:48,767 INFO L423 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION]=== [2020-06-22 00:04:48,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:04:48,767 INFO L82 PathProgramCache]: Analyzing trace with hash -622045413, now seen corresponding path program 2 times [2020-06-22 00:04:48,767 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:04:48,767 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:04:48,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:04:48,768 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 00:04:48,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:04:48,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:04:48,929 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:04:48,930 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2020-06-22 00:04:48,930 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2020-06-22 00:04:48,941 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2020-06-22 00:04:48,964 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-06-22 00:04:48,964 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-06-22 00:04:48,965 INFO L256 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 32 conjunts are in the unsatisfiable core [2020-06-22 00:04:48,967 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 00:04:49,006 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:04:49,006 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:49,020 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:49,023 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:04:49,023 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:49,035 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:49,036 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:49,036 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:47, output treesize:33 [2020-06-22 00:04:49,063 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-06-22 00:04:49,064 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:49,070 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:49,070 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:49,070 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:19 [2020-06-22 00:04:49,091 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:04:49,092 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2020-06-22 00:04:49,093 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:49,099 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:49,099 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:49,099 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:34, output treesize:19 [2020-06-22 00:04:49,123 INFO L388 ElimStorePlain]: Different consts {0=[|v_#memory_$Pointer$.base_44|], 2=[|v_#memory_$Pointer$.offset_39|]} [2020-06-22 00:04:49,127 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:04:49,127 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:49,141 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:49,145 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:04:49,146 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2020-06-22 00:04:49,146 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:49,158 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:49,159 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:49,159 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:48, output treesize:28 [2020-06-22 00:04:49,187 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2020-06-22 00:04:49,187 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:49,195 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:49,195 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:49,195 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:37, output treesize:19 [2020-06-22 00:04:49,213 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:04:49,215 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2020-06-22 00:04:49,216 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:49,223 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:49,223 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:49,223 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:34, output treesize:16 [2020-06-22 00:04:49,245 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-06-22 00:04:49,245 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:49,249 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:49,249 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:49,249 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:20, output treesize:3 [2020-06-22 00:04:49,263 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-06-22 00:04:49,288 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-06-22 00:04:49,289 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2020-06-22 00:04:49,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-06-22 00:04:49,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-06-22 00:04:49,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2020-06-22 00:04:49,290 INFO L87 Difference]: Start difference. First operand 93 states and 147 transitions. Second operand 20 states. [2020-06-22 00:04:50,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:04:50,393 INFO L93 Difference]: Finished difference Result 236 states and 361 transitions. [2020-06-22 00:04:50,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-06-22 00:04:50,393 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 23 [2020-06-22 00:04:50,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 00:04:50,395 INFO L225 Difference]: With dead ends: 236 [2020-06-22 00:04:50,395 INFO L226 Difference]: Without dead ends: 202 [2020-06-22 00:04:50,396 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 13 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 311 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=284, Invalid=838, Unknown=0, NotChecked=0, Total=1122 [2020-06-22 00:04:50,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-06-22 00:04:50,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 144. [2020-06-22 00:04:50,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-06-22 00:04:50,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 228 transitions. [2020-06-22 00:04:50,407 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 228 transitions. Word has length 23 [2020-06-22 00:04:50,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 00:04:50,407 INFO L480 AbstractCegarLoop]: Abstraction has 144 states and 228 transitions. [2020-06-22 00:04:50,407 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-06-22 00:04:50,407 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 228 transitions. [2020-06-22 00:04:50,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-06-22 00:04:50,408 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 00:04:50,408 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 00:04:50,408 INFO L423 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION]=== [2020-06-22 00:04:50,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:04:50,408 INFO L82 PathProgramCache]: Analyzing trace with hash -622045412, now seen corresponding path program 2 times [2020-06-22 00:04:50,408 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:04:50,409 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:04:50,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:04:50,409 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 00:04:50,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:04:50,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:04:50,624 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:04:50,624 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2020-06-22 00:04:50,624 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2020-06-22 00:04:50,636 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2020-06-22 00:04:50,662 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-06-22 00:04:50,662 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-06-22 00:04:50,663 INFO L256 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 38 conjunts are in the unsatisfiable core [2020-06-22 00:04:50,665 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 00:04:50,722 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:04:50,722 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:50,740 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:50,744 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:04:50,744 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:50,761 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:50,761 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:50,762 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:47, output treesize:33 [2020-06-22 00:04:50,855 INFO L340 Elim1Store]: treesize reduction 21, result has 41.7 percent of original size [2020-06-22 00:04:50,855 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 22 [2020-06-22 00:04:50,856 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:50,887 INFO L497 ElimStorePlain]: treesize reduction 8, result has 83.7 percent of original size [2020-06-22 00:04:50,898 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:04:50,899 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2020-06-22 00:04:50,899 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:50,912 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:50,913 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:50,913 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:60, output treesize:26 [2020-06-22 00:04:50,988 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:50,989 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 51 [2020-06-22 00:04:50,989 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:51,039 INFO L497 ElimStorePlain]: treesize reduction 28, result has 69.2 percent of original size [2020-06-22 00:04:51,043 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:04:51,044 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2020-06-22 00:04:51,045 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:51,064 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:51,065 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:51,065 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:71, output treesize:47 [2020-06-22 00:04:51,154 INFO L388 ElimStorePlain]: Different consts {2=[|v_#memory_$Pointer$.offset_44|], 6=[|v_#memory_$Pointer$.base_48|]} [2020-06-22 00:04:51,164 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:04:51,165 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2020-06-22 00:04:51,165 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:51,202 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:51,276 INFO L340 Elim1Store]: treesize reduction 44, result has 52.7 percent of original size [2020-06-22 00:04:51,276 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 68 [2020-06-22 00:04:51,282 INFO L427 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2020-06-22 00:04:51,391 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 41 [2020-06-22 00:04:51,392 INFO L497 ElimStorePlain]: treesize reduction 54, result has 60.0 percent of original size [2020-06-22 00:04:51,393 INFO L427 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:04:51,394 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:95, output treesize:71 [2020-06-22 00:04:51,450 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2020-06-22 00:04:51,451 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:51,459 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:51,461 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-06-22 00:04:51,461 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:51,467 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:51,467 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:51,467 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:43, output treesize:12 [2020-06-22 00:04:51,493 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:04:51,520 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-06-22 00:04:51,520 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 20 [2020-06-22 00:04:51,521 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-06-22 00:04:51,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-06-22 00:04:51,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=349, Unknown=0, NotChecked=0, Total=420 [2020-06-22 00:04:51,521 INFO L87 Difference]: Start difference. First operand 144 states and 228 transitions. Second operand 21 states. [2020-06-22 00:04:52,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:04:52,905 INFO L93 Difference]: Finished difference Result 209 states and 317 transitions. [2020-06-22 00:04:52,906 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-06-22 00:04:52,906 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 23 [2020-06-22 00:04:52,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 00:04:52,907 INFO L225 Difference]: With dead ends: 209 [2020-06-22 00:04:52,907 INFO L226 Difference]: Without dead ends: 203 [2020-06-22 00:04:52,908 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 12 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=152, Invalid=660, Unknown=0, NotChecked=0, Total=812 [2020-06-22 00:04:52,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-06-22 00:04:52,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 143. [2020-06-22 00:04:52,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-06-22 00:04:52,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 226 transitions. [2020-06-22 00:04:52,917 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 226 transitions. Word has length 23 [2020-06-22 00:04:52,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 00:04:52,918 INFO L480 AbstractCegarLoop]: Abstraction has 143 states and 226 transitions. [2020-06-22 00:04:52,918 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-06-22 00:04:52,918 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 226 transitions. [2020-06-22 00:04:52,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-06-22 00:04:52,918 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 00:04:52,919 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 00:04:52,919 INFO L423 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION]=== [2020-06-22 00:04:52,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:04:52,919 INFO L82 PathProgramCache]: Analyzing trace with hash 1679457017, now seen corresponding path program 1 times [2020-06-22 00:04:52,919 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:04:52,919 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:04:52,920 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:04:52,920 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 00:04:52,920 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:04:52,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:04:53,092 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:04:53,093 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2020-06-22 00:04:53,093 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2020-06-22 00:04:53,104 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:04:53,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:04:53,130 INFO L256 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 36 conjunts are in the unsatisfiable core [2020-06-22 00:04:53,132 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 00:04:53,136 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-06-22 00:04:53,137 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:53,141 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:53,141 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:53,141 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-06-22 00:04:53,204 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:04:53,205 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2020-06-22 00:04:53,205 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:53,216 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:53,216 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:53,216 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:27, output treesize:26 [2020-06-22 00:04:53,249 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:04:53,250 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:53,262 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:53,263 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:53,263 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:39, output treesize:38 [2020-06-22 00:04:53,345 INFO L340 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2020-06-22 00:04:53,345 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 31 [2020-06-22 00:04:53,346 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:53,366 INFO L497 ElimStorePlain]: treesize reduction 10, result has 74.4 percent of original size [2020-06-22 00:04:53,367 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:53,367 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:56, output treesize:29 [2020-06-22 00:04:53,392 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:04:53,393 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:04:53,397 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:53,398 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 18 [2020-06-22 00:04:53,398 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:53,408 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:53,408 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:53,408 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:49, output treesize:32 [2020-06-22 00:04:53,460 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:53,460 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 59 [2020-06-22 00:04:53,461 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:53,495 INFO L497 ElimStorePlain]: treesize reduction 34, result has 54.1 percent of original size [2020-06-22 00:04:53,496 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:53,496 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:50, output treesize:43 [2020-06-22 00:04:53,618 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:53,618 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 103 treesize of output 135 [2020-06-22 00:04:53,629 INFO L427 ElimStorePlain]: Start of recursive call 2: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-06-22 00:04:53,675 INFO L497 ElimStorePlain]: treesize reduction 84, result has 33.9 percent of original size [2020-06-22 00:04:53,676 INFO L427 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-06-22 00:04:53,676 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:112, output treesize:61 [2020-06-22 00:04:53,761 INFO L172 IndexEqualityManager]: detected equality via solver [2020-06-22 00:04:53,769 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:53,769 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 38 [2020-06-22 00:04:53,770 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:53,790 INFO L497 ElimStorePlain]: treesize reduction 21, result has 50.0 percent of original size [2020-06-22 00:04:53,790 INFO L427 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:53,790 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:73, output treesize:9 [2020-06-22 00:04:53,819 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:04:53,845 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-06-22 00:04:53,845 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13] total 23 [2020-06-22 00:04:53,846 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-06-22 00:04:53,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-06-22 00:04:53,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=483, Unknown=0, NotChecked=0, Total=552 [2020-06-22 00:04:53,847 INFO L87 Difference]: Start difference. First operand 143 states and 226 transitions. Second operand 24 states. [2020-06-22 00:04:56,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:04:56,592 INFO L93 Difference]: Finished difference Result 334 states and 519 transitions. [2020-06-22 00:04:56,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-06-22 00:04:56,593 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 23 [2020-06-22 00:04:56,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 00:04:56,595 INFO L225 Difference]: With dead ends: 334 [2020-06-22 00:04:56,595 INFO L226 Difference]: Without dead ends: 264 [2020-06-22 00:04:56,596 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=381, Invalid=1689, Unknown=0, NotChecked=0, Total=2070 [2020-06-22 00:04:56,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2020-06-22 00:04:56,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 143. [2020-06-22 00:04:56,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-06-22 00:04:56,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 224 transitions. [2020-06-22 00:04:56,606 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 224 transitions. Word has length 23 [2020-06-22 00:04:56,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 00:04:56,606 INFO L480 AbstractCegarLoop]: Abstraction has 143 states and 224 transitions. [2020-06-22 00:04:56,607 INFO L481 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-06-22 00:04:56,607 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 224 transitions. [2020-06-22 00:04:56,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-06-22 00:04:56,607 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 00:04:56,607 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 00:04:56,607 INFO L423 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION]=== [2020-06-22 00:04:56,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:04:56,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1679457019, now seen corresponding path program 1 times [2020-06-22 00:04:56,608 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:04:56,608 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:04:56,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:04:56,609 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:04:56,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:04:56,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:04:56,787 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:04:56,787 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2020-06-22 00:04:56,787 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2020-06-22 00:04:56,799 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:04:56,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:04:56,829 INFO L256 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 37 conjunts are in the unsatisfiable core [2020-06-22 00:04:56,831 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 00:04:56,840 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-06-22 00:04:56,840 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:56,846 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:56,846 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:56,847 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2020-06-22 00:04:56,937 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:04:56,938 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2020-06-22 00:04:56,938 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:56,956 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:56,957 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:56,957 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:33, output treesize:32 [2020-06-22 00:04:57,003 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:04:57,004 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:57,030 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:57,034 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:04:57,034 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:57,059 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:57,060 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:57,060 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:58, output treesize:50 [2020-06-22 00:04:57,110 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 12 [2020-06-22 00:04:57,110 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:57,126 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:57,127 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:04:57,127 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:56, output treesize:35 [2020-06-22 00:04:57,173 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:04:57,174 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2020-06-22 00:04:57,174 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:57,192 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:57,193 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:04:57,193 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:50, output treesize:35 [2020-06-22 00:04:57,200 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:04:57,203 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:04:57,208 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:57,208 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 18 [2020-06-22 00:04:57,209 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:57,227 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:57,228 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:04:57,228 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:43, output treesize:32 [2020-06-22 00:04:57,273 INFO L388 ElimStorePlain]: Different consts {0=[|v_#memory_$Pointer$.base_54|], 2=[|v_#memory_$Pointer$.offset_47|]} [2020-06-22 00:04:57,279 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:04:57,279 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:57,305 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:57,310 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:04:57,311 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2020-06-22 00:04:57,311 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:57,335 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:57,336 INFO L427 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:04:57,336 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:58, output treesize:44 [2020-06-22 00:04:57,384 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 11 [2020-06-22 00:04:57,385 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:57,399 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:57,400 INFO L427 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:04:57,400 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:53, output treesize:29 [2020-06-22 00:04:57,442 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2020-06-22 00:04:57,443 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:57,455 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:57,456 INFO L427 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:04:57,456 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:44, output treesize:22 [2020-06-22 00:04:57,501 INFO L172 IndexEqualityManager]: detected equality via solver [2020-06-22 00:04:57,502 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2020-06-22 00:04:57,502 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:04:57,511 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:04:57,512 INFO L427 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:04:57,512 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:31, output treesize:3 [2020-06-22 00:04:57,537 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:04:57,563 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-06-22 00:04:57,564 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 22 [2020-06-22 00:04:57,564 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-06-22 00:04:57,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-06-22 00:04:57,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=422, Unknown=0, NotChecked=0, Total=506 [2020-06-22 00:04:57,565 INFO L87 Difference]: Start difference. First operand 143 states and 224 transitions. Second operand 23 states. [2020-06-22 00:04:59,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:04:59,931 INFO L93 Difference]: Finished difference Result 310 states and 474 transitions. [2020-06-22 00:04:59,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-06-22 00:04:59,932 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 23 [2020-06-22 00:04:59,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 00:04:59,933 INFO L225 Difference]: With dead ends: 310 [2020-06-22 00:04:59,934 INFO L226 Difference]: Without dead ends: 308 [2020-06-22 00:04:59,934 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=382, Invalid=1424, Unknown=0, NotChecked=0, Total=1806 [2020-06-22 00:04:59,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2020-06-22 00:04:59,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 228. [2020-06-22 00:04:59,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-06-22 00:04:59,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 355 transitions. [2020-06-22 00:04:59,949 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 355 transitions. Word has length 23 [2020-06-22 00:04:59,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 00:04:59,949 INFO L480 AbstractCegarLoop]: Abstraction has 228 states and 355 transitions. [2020-06-22 00:04:59,949 INFO L481 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-06-22 00:04:59,950 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 355 transitions. [2020-06-22 00:04:59,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-06-22 00:04:59,950 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 00:04:59,950 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 00:04:59,951 INFO L423 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION]=== [2020-06-22 00:04:59,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:04:59,951 INFO L82 PathProgramCache]: Analyzing trace with hash 1679457020, now seen corresponding path program 1 times [2020-06-22 00:04:59,951 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:04:59,951 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:04:59,952 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:04:59,952 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:04:59,952 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:04:59,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:05:00,203 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:05:00,203 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2020-06-22 00:05:00,204 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2020-06-22 00:05:00,215 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:05:00,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:05:00,239 INFO L256 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 42 conjunts are in the unsatisfiable core [2020-06-22 00:05:00,240 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 00:05:00,244 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-06-22 00:05:00,245 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:00,248 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:00,249 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:00,249 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-06-22 00:05:00,320 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:05:00,321 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2020-06-22 00:05:00,322 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:00,334 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:00,335 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:05:00,335 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:30, output treesize:29 [2020-06-22 00:05:00,419 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:05:00,419 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:00,440 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:00,444 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:05:00,444 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:00,465 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:00,466 INFO L427 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:05:00,466 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:58, output treesize:44 [2020-06-22 00:05:00,588 INFO L340 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2020-06-22 00:05:00,589 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 26 [2020-06-22 00:05:00,589 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:00,628 INFO L497 ElimStorePlain]: treesize reduction 10, result has 84.8 percent of original size [2020-06-22 00:05:00,633 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:05:00,634 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2020-06-22 00:05:00,634 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:00,649 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:00,650 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:05:00,650 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:77, output treesize:41 [2020-06-22 00:05:00,692 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:05:00,694 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:05:00,699 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:00,699 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 18 [2020-06-22 00:05:00,699 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:00,714 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:00,714 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:00,714 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:55, output treesize:41 [2020-06-22 00:05:00,788 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:00,788 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 59 [2020-06-22 00:05:00,789 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:00,839 INFO L497 ElimStorePlain]: treesize reduction 34, result has 67.0 percent of original size [2020-06-22 00:05:00,843 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:05:00,844 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2020-06-22 00:05:00,844 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:00,864 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:00,865 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:00,865 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:79, output treesize:59 [2020-06-22 00:05:00,965 INFO L388 ElimStorePlain]: Different consts {2=[|v_#memory_$Pointer$.offset_52|], 6=[|v_#memory_$Pointer$.base_58|]} [2020-06-22 00:05:00,972 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 13 [2020-06-22 00:05:00,972 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:00,996 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:01,042 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:01,043 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 105 treesize of output 137 [2020-06-22 00:05:01,061 INFO L427 ElimStorePlain]: Start of recursive call 3: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-06-22 00:05:01,120 INFO L497 ElimStorePlain]: treesize reduction 84, result has 41.3 percent of original size [2020-06-22 00:05:01,122 INFO L427 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-06-22 00:05:01,122 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:179, output treesize:77 [2020-06-22 00:05:01,232 INFO L388 ElimStorePlain]: Different consts {2=[|#memory_$Pointer$.offset|], 6=[|#memory_$Pointer$.base|]} [2020-06-22 00:05:01,237 INFO L172 IndexEqualityManager]: detected equality via solver [2020-06-22 00:05:01,238 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2020-06-22 00:05:01,238 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:01,261 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:01,264 INFO L172 IndexEqualityManager]: detected equality via solver [2020-06-22 00:05:01,271 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:01,272 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 63 treesize of output 40 [2020-06-22 00:05:01,273 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:01,304 INFO L497 ElimStorePlain]: treesize reduction 21, result has 59.6 percent of original size [2020-06-22 00:05:01,305 INFO L427 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:01,305 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:98, output treesize:12 [2020-06-22 00:05:01,345 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:05:01,371 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-06-22 00:05:01,371 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14] total 25 [2020-06-22 00:05:01,371 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-06-22 00:05:01,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-06-22 00:05:01,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=580, Unknown=0, NotChecked=0, Total=650 [2020-06-22 00:05:01,372 INFO L87 Difference]: Start difference. First operand 228 states and 355 transitions. Second operand 26 states. [2020-06-22 00:05:04,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:05:04,949 INFO L93 Difference]: Finished difference Result 379 states and 577 transitions. [2020-06-22 00:05:04,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-06-22 00:05:04,950 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 23 [2020-06-22 00:05:04,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 00:05:04,952 INFO L225 Difference]: With dead ends: 379 [2020-06-22 00:05:04,952 INFO L226 Difference]: Without dead ends: 372 [2020-06-22 00:05:04,953 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 304 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=296, Invalid=1684, Unknown=0, NotChecked=0, Total=1980 [2020-06-22 00:05:04,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2020-06-22 00:05:04,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 211. [2020-06-22 00:05:04,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-06-22 00:05:04,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 329 transitions. [2020-06-22 00:05:04,966 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 329 transitions. Word has length 23 [2020-06-22 00:05:04,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 00:05:04,967 INFO L480 AbstractCegarLoop]: Abstraction has 211 states and 329 transitions. [2020-06-22 00:05:04,967 INFO L481 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-06-22 00:05:04,967 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 329 transitions. [2020-06-22 00:05:04,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-06-22 00:05:04,967 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 00:05:04,968 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 00:05:04,968 INFO L423 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION]=== [2020-06-22 00:05:04,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:05:04,968 INFO L82 PathProgramCache]: Analyzing trace with hash 1423514679, now seen corresponding path program 2 times [2020-06-22 00:05:04,968 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:05:04,968 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:05:04,969 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:05:04,969 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:05:04,969 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:05:04,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:05:05,128 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:05:05,129 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2020-06-22 00:05:05,129 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2020-06-22 00:05:05,140 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2020-06-22 00:05:05,163 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-06-22 00:05:05,163 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-06-22 00:05:05,165 INFO L256 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 37 conjunts are in the unsatisfiable core [2020-06-22 00:05:05,166 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 00:05:05,170 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-06-22 00:05:05,171 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:05,174 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:05,174 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:05,174 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-06-22 00:05:05,194 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:05,194 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2020-06-22 00:05:05,194 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:05,215 INFO L497 ElimStorePlain]: treesize reduction 14, result has 63.2 percent of original size [2020-06-22 00:05:05,216 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:05,216 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:24 [2020-06-22 00:05:05,242 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:05:05,243 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:05,253 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:05,254 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:05,254 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:37, output treesize:36 [2020-06-22 00:05:05,318 INFO L340 Elim1Store]: treesize reduction 21, result has 41.7 percent of original size [2020-06-22 00:05:05,318 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 28 [2020-06-22 00:05:05,318 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:05,336 INFO L497 ElimStorePlain]: treesize reduction 8, result has 75.8 percent of original size [2020-06-22 00:05:05,336 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:05,336 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:48, output treesize:25 [2020-06-22 00:05:05,364 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:05,365 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 30 [2020-06-22 00:05:05,365 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:05,374 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:05,374 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:05,374 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:38, output treesize:31 [2020-06-22 00:05:05,417 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:05,417 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 56 [2020-06-22 00:05:05,417 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:05,447 INFO L497 ElimStorePlain]: treesize reduction 28, result has 56.9 percent of original size [2020-06-22 00:05:05,447 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:05,448 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:49, output treesize:40 [2020-06-22 00:05:05,552 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:05,553 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 95 treesize of output 127 [2020-06-22 00:05:05,557 INFO L427 ElimStorePlain]: Start of recursive call 2: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-06-22 00:05:05,595 INFO L497 ElimStorePlain]: treesize reduction 76, result has 32.7 percent of original size [2020-06-22 00:05:05,596 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:05:05,597 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:98, output treesize:53 [2020-06-22 00:05:05,641 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:05,641 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 38 [2020-06-22 00:05:05,642 INFO L427 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:05,651 INFO L497 ElimStorePlain]: treesize reduction 10, result has 50.0 percent of original size [2020-06-22 00:05:05,652 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:05,652 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:57, output treesize:5 [2020-06-22 00:05:05,655 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:05:05,681 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-06-22 00:05:05,682 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 18 [2020-06-22 00:05:05,682 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-06-22 00:05:05,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-06-22 00:05:05,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2020-06-22 00:05:05,683 INFO L87 Difference]: Start difference. First operand 211 states and 329 transitions. Second operand 19 states. [2020-06-22 00:05:16,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:05:16,736 INFO L93 Difference]: Finished difference Result 296 states and 449 transitions. [2020-06-22 00:05:16,736 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-06-22 00:05:16,736 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 23 [2020-06-22 00:05:16,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 00:05:16,738 INFO L225 Difference]: With dead ends: 296 [2020-06-22 00:05:16,738 INFO L226 Difference]: Without dead ends: 294 [2020-06-22 00:05:16,739 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=138, Invalid=564, Unknown=0, NotChecked=0, Total=702 [2020-06-22 00:05:16,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-06-22 00:05:16,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 232. [2020-06-22 00:05:16,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-06-22 00:05:16,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 364 transitions. [2020-06-22 00:05:16,753 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 364 transitions. Word has length 23 [2020-06-22 00:05:16,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 00:05:16,753 INFO L480 AbstractCegarLoop]: Abstraction has 232 states and 364 transitions. [2020-06-22 00:05:16,753 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-06-22 00:05:16,754 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 364 transitions. [2020-06-22 00:05:16,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-06-22 00:05:16,754 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 00:05:16,754 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 00:05:16,754 INFO L423 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION]=== [2020-06-22 00:05:16,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:05:16,755 INFO L82 PathProgramCache]: Analyzing trace with hash 1423514681, now seen corresponding path program 1 times [2020-06-22 00:05:16,755 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:05:16,755 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:05:16,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:05:16,756 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 00:05:16,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:05:16,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:05:16,931 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:05:16,932 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2020-06-22 00:05:16,932 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2020-06-22 00:05:16,943 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:05:16,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:05:16,967 INFO L256 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 36 conjunts are in the unsatisfiable core [2020-06-22 00:05:16,969 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 00:05:16,973 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-06-22 00:05:16,973 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:16,977 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:16,977 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:16,977 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-06-22 00:05:17,024 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:17,024 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2020-06-22 00:05:17,025 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:17,049 INFO L497 ElimStorePlain]: treesize reduction 14, result has 65.9 percent of original size [2020-06-22 00:05:17,050 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:17,050 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:29, output treesize:27 [2020-06-22 00:05:17,077 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:05:17,078 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:17,095 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:17,099 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:05:17,099 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:17,117 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:17,118 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:17,118 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:53, output treesize:45 [2020-06-22 00:05:17,149 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2020-06-22 00:05:17,149 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:17,158 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:17,158 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:17,158 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:40, output treesize:25 [2020-06-22 00:05:17,185 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2020-06-22 00:05:17,186 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:17,195 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:17,196 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:17,196 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:40, output treesize:25 [2020-06-22 00:05:17,208 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:17,209 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 26 [2020-06-22 00:05:17,209 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:17,217 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:17,217 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:17,217 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:23 [2020-06-22 00:05:17,239 INFO L388 ElimStorePlain]: Different consts {0=[|v_#memory_$Pointer$.base_64|], 2=[|v_#memory_$Pointer$.offset_55|]} [2020-06-22 00:05:17,243 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:05:17,243 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:17,256 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:17,259 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2020-06-22 00:05:17,259 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:17,271 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:17,272 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:17,272 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:49, output treesize:35 [2020-06-22 00:05:17,313 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 12 [2020-06-22 00:05:17,313 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:17,321 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:17,321 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:17,321 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:44, output treesize:15 [2020-06-22 00:05:17,343 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2020-06-22 00:05:17,344 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:17,348 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:17,348 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:17,349 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:30, output treesize:11 [2020-06-22 00:05:17,371 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-06-22 00:05:17,371 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:17,373 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:17,373 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:17,373 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2020-06-22 00:05:17,391 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:05:17,417 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-06-22 00:05:17,417 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 21 [2020-06-22 00:05:17,418 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-06-22 00:05:17,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-06-22 00:05:17,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=376, Unknown=0, NotChecked=0, Total=462 [2020-06-22 00:05:17,418 INFO L87 Difference]: Start difference. First operand 232 states and 364 transitions. Second operand 22 states. [2020-06-22 00:05:18,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:05:18,513 INFO L93 Difference]: Finished difference Result 256 states and 395 transitions. [2020-06-22 00:05:18,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-06-22 00:05:18,513 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 23 [2020-06-22 00:05:18,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 00:05:18,515 INFO L225 Difference]: With dead ends: 256 [2020-06-22 00:05:18,515 INFO L226 Difference]: Without dead ends: 254 [2020-06-22 00:05:18,516 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=258, Invalid=864, Unknown=0, NotChecked=0, Total=1122 [2020-06-22 00:05:18,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-06-22 00:05:18,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 153. [2020-06-22 00:05:18,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-06-22 00:05:18,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 239 transitions. [2020-06-22 00:05:18,527 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 239 transitions. Word has length 23 [2020-06-22 00:05:18,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 00:05:18,527 INFO L480 AbstractCegarLoop]: Abstraction has 153 states and 239 transitions. [2020-06-22 00:05:18,527 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-06-22 00:05:18,527 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 239 transitions. [2020-06-22 00:05:18,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-06-22 00:05:18,528 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 00:05:18,528 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 00:05:18,528 INFO L423 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION]=== [2020-06-22 00:05:18,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:05:18,528 INFO L82 PathProgramCache]: Analyzing trace with hash 1423514682, now seen corresponding path program 1 times [2020-06-22 00:05:18,528 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:05:18,529 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:05:18,529 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:05:18,530 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:05:18,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:05:18,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:05:18,740 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:05:18,740 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2020-06-22 00:05:18,740 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2020-06-22 00:05:18,754 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:05:18,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:05:18,779 INFO L256 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 42 conjunts are in the unsatisfiable core [2020-06-22 00:05:18,781 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 00:05:18,787 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-06-22 00:05:18,787 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:18,791 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:18,791 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:18,792 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-06-22 00:05:18,853 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:18,853 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2020-06-22 00:05:18,854 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:18,884 INFO L497 ElimStorePlain]: treesize reduction 14, result has 65.9 percent of original size [2020-06-22 00:05:18,885 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:18,885 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:29, output treesize:27 [2020-06-22 00:05:18,917 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:05:18,917 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:18,933 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:18,937 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:05:18,937 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:18,951 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:18,952 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:18,952 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:53, output treesize:45 [2020-06-22 00:05:19,014 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:05:19,015 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2020-06-22 00:05:19,015 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:19,029 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:19,046 INFO L340 Elim1Store]: treesize reduction 21, result has 41.7 percent of original size [2020-06-22 00:05:19,046 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 28 [2020-06-22 00:05:19,047 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:19,067 INFO L497 ElimStorePlain]: treesize reduction 8, result has 80.0 percent of original size [2020-06-22 00:05:19,068 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:19,068 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:70, output treesize:32 [2020-06-22 00:05:19,100 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:19,100 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 30 [2020-06-22 00:05:19,101 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:19,110 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:19,110 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:19,110 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:45, output treesize:38 [2020-06-22 00:05:19,159 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:19,160 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 56 [2020-06-22 00:05:19,160 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:19,207 INFO L497 ElimStorePlain]: treesize reduction 28, result has 69.6 percent of original size [2020-06-22 00:05:19,213 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2020-06-22 00:05:19,213 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:19,231 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:19,231 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:19,231 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:76, output treesize:54 [2020-06-22 00:05:19,304 INFO L388 ElimStorePlain]: Different consts {2=[|v_#memory_$Pointer$.offset_60|], 6=[|v_#memory_$Pointer$.base_68|]} [2020-06-22 00:05:19,308 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 11 [2020-06-22 00:05:19,308 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:19,325 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:19,365 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:19,366 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 97 treesize of output 129 [2020-06-22 00:05:19,368 INFO L427 ElimStorePlain]: Start of recursive call 3: 2 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:05:19,407 INFO L497 ElimStorePlain]: treesize reduction 102, result has 34.6 percent of original size [2020-06-22 00:05:19,408 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:05:19,408 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:157, output treesize:67 [2020-06-22 00:05:19,449 INFO L388 ElimStorePlain]: Different consts {0=[|#memory_$Pointer$.offset|], 2=[|#memory_$Pointer$.base|]} [2020-06-22 00:05:19,452 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-06-22 00:05:19,453 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:19,465 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:19,473 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:19,473 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 40 [2020-06-22 00:05:19,474 INFO L427 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:19,490 INFO L497 ElimStorePlain]: treesize reduction 10, result has 66.7 percent of original size [2020-06-22 00:05:19,490 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:19,491 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:78, output treesize:9 [2020-06-22 00:05:19,519 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:05:19,545 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-06-22 00:05:19,545 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 21 [2020-06-22 00:05:19,545 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-06-22 00:05:19,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-06-22 00:05:19,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2020-06-22 00:05:19,546 INFO L87 Difference]: Start difference. First operand 153 states and 239 transitions. Second operand 22 states. [2020-06-22 00:05:21,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:05:21,113 INFO L93 Difference]: Finished difference Result 188 states and 285 transitions. [2020-06-22 00:05:21,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-06-22 00:05:21,135 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 23 [2020-06-22 00:05:21,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 00:05:21,136 INFO L225 Difference]: With dead ends: 188 [2020-06-22 00:05:21,137 INFO L226 Difference]: Without dead ends: 182 [2020-06-22 00:05:21,137 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=162, Invalid=768, Unknown=0, NotChecked=0, Total=930 [2020-06-22 00:05:21,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-06-22 00:05:21,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 137. [2020-06-22 00:05:21,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-06-22 00:05:21,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 214 transitions. [2020-06-22 00:05:21,147 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 214 transitions. Word has length 23 [2020-06-22 00:05:21,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 00:05:21,147 INFO L480 AbstractCegarLoop]: Abstraction has 137 states and 214 transitions. [2020-06-22 00:05:21,147 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-06-22 00:05:21,147 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 214 transitions. [2020-06-22 00:05:21,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-06-22 00:05:21,148 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 00:05:21,148 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 00:05:21,148 INFO L423 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION]=== [2020-06-22 00:05:21,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:05:21,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1424994868, now seen corresponding path program 4 times [2020-06-22 00:05:21,149 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:05:21,149 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:05:21,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:05:21,149 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:05:21,150 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:05:21,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:05:21,523 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:05:21,524 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2020-06-22 00:05:21,524 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2020-06-22 00:05:21,534 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2020-06-22 00:05:21,563 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-06-22 00:05:21,563 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-06-22 00:05:21,565 INFO L256 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 48 conjunts are in the unsatisfiable core [2020-06-22 00:05:21,566 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 00:05:21,586 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-06-22 00:05:21,587 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:21,598 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:21,598 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:21,598 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:27, output treesize:26 [2020-06-22 00:05:21,629 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:05:21,629 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:21,645 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:21,648 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:05:21,648 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:21,661 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:21,661 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:21,662 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:49, output treesize:44 [2020-06-22 00:05:21,730 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:05:21,731 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 19 [2020-06-22 00:05:21,731 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:21,747 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:21,751 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:05:21,752 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2020-06-22 00:05:21,752 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:21,763 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:21,763 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:21,764 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:76, output treesize:34 [2020-06-22 00:05:21,803 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:21,804 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 59 [2020-06-22 00:05:21,804 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:21,847 INFO L497 ElimStorePlain]: treesize reduction 26, result has 70.5 percent of original size [2020-06-22 00:05:21,847 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:21,847 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:60, output treesize:62 [2020-06-22 00:05:21,896 INFO L172 IndexEqualityManager]: detected equality via solver [2020-06-22 00:05:21,905 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:21,906 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 48 [2020-06-22 00:05:21,906 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:21,961 INFO L497 ElimStorePlain]: treesize reduction 16, result has 81.8 percent of original size [2020-06-22 00:05:21,965 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:05:21,966 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2020-06-22 00:05:21,966 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:21,992 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:21,993 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:21,993 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:88, output treesize:68 [2020-06-22 00:05:22,081 INFO L388 ElimStorePlain]: Different consts {2=[|v_#memory_$Pointer$.offset_64|], 6=[|v_#memory_$Pointer$.base_72|]} [2020-06-22 00:05:22,099 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:22,100 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 180 treesize of output 174 [2020-06-22 00:05:22,100 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:22,148 INFO L497 ElimStorePlain]: treesize reduction 52, result has 68.1 percent of original size [2020-06-22 00:05:22,181 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:22,182 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 96 treesize of output 116 [2020-06-22 00:05:22,186 INFO L427 ElimStorePlain]: Start of recursive call 3: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-06-22 00:05:22,234 INFO L497 ElimStorePlain]: treesize reduction 64, result has 43.9 percent of original size [2020-06-22 00:05:22,235 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:22,235 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:204, output treesize:72 [2020-06-22 00:05:22,279 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-06-22 00:05:22,279 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:22,296 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:22,296 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:05:22,296 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:83, output treesize:72 [2020-06-22 00:05:22,343 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:22,343 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 68 treesize of output 35 [2020-06-22 00:05:22,344 INFO L427 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:05:22,371 INFO L497 ElimStorePlain]: treesize reduction 8, result has 76.5 percent of original size [2020-06-22 00:05:22,372 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:05:22,372 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:73, output treesize:21 [2020-06-22 00:05:22,418 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:05:22,444 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-06-22 00:05:22,445 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 22 [2020-06-22 00:05:22,445 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-06-22 00:05:22,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-06-22 00:05:22,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=406, Unknown=0, NotChecked=0, Total=506 [2020-06-22 00:05:22,446 INFO L87 Difference]: Start difference. First operand 137 states and 214 transitions. Second operand 23 states. [2020-06-22 00:05:24,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:05:24,096 INFO L93 Difference]: Finished difference Result 305 states and 464 transitions. [2020-06-22 00:05:24,097 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-06-22 00:05:24,097 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 26 [2020-06-22 00:05:24,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 00:05:24,099 INFO L225 Difference]: With dead ends: 305 [2020-06-22 00:05:24,099 INFO L226 Difference]: Without dead ends: 303 [2020-06-22 00:05:24,100 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 13 SyntacticMatches, 5 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=303, Invalid=1257, Unknown=0, NotChecked=0, Total=1560 [2020-06-22 00:05:24,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-06-22 00:05:24,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 158. [2020-06-22 00:05:24,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-06-22 00:05:24,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 247 transitions. [2020-06-22 00:05:24,113 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 247 transitions. Word has length 26 [2020-06-22 00:05:24,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 00:05:24,114 INFO L480 AbstractCegarLoop]: Abstraction has 158 states and 247 transitions. [2020-06-22 00:05:24,114 INFO L481 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-06-22 00:05:24,114 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 247 transitions. [2020-06-22 00:05:24,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-06-22 00:05:24,114 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 00:05:24,115 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 00:05:24,115 INFO L423 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION]=== [2020-06-22 00:05:24,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:05:24,115 INFO L82 PathProgramCache]: Analyzing trace with hash 1424994870, now seen corresponding path program 3 times [2020-06-22 00:05:24,115 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:05:24,115 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:05:24,116 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:05:24,116 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 00:05:24,116 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:05:24,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:05:24,575 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:05:24,576 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2020-06-22 00:05:24,576 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2020-06-22 00:05:24,587 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2020-06-22 00:05:24,620 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-06-22 00:05:24,620 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-06-22 00:05:24,622 INFO L256 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 50 conjunts are in the unsatisfiable core [2020-06-22 00:05:24,623 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 00:05:24,646 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-06-22 00:05:24,647 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:24,658 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:24,658 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:24,658 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:27, output treesize:26 [2020-06-22 00:05:24,690 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:05:24,690 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:24,707 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:24,710 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:05:24,711 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:24,725 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:24,726 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:24,726 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:52, output treesize:44 [2020-06-22 00:05:24,797 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:05:24,798 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2020-06-22 00:05:24,798 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:24,815 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:24,818 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:05:24,819 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 19 [2020-06-22 00:05:24,819 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:24,830 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:24,831 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:24,831 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:76, output treesize:34 [2020-06-22 00:05:24,859 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:24,860 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2020-06-22 00:05:24,860 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:24,873 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:24,873 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:24,873 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:54, output treesize:48 [2020-06-22 00:05:24,951 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:05:24,952 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2020-06-22 00:05:24,952 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:24,989 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:25,007 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:25,007 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 55 [2020-06-22 00:05:25,008 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:25,049 INFO L497 ElimStorePlain]: treesize reduction 28, result has 65.9 percent of original size [2020-06-22 00:05:25,050 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:25,050 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:74, output treesize:57 [2020-06-22 00:05:25,139 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:05:25,170 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:25,171 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 178 treesize of output 228 [2020-06-22 00:05:25,182 INFO L427 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:05:25,240 INFO L497 ElimStorePlain]: treesize reduction 134, result has 46.2 percent of original size [2020-06-22 00:05:25,284 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:25,285 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 97 treesize of output 129 [2020-06-22 00:05:25,289 INFO L427 ElimStorePlain]: Start of recursive call 3: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-06-22 00:05:25,351 INFO L497 ElimStorePlain]: treesize reduction 76, result has 41.5 percent of original size [2020-06-22 00:05:25,352 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:25,352 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:193, output treesize:79 [2020-06-22 00:05:25,403 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:25,403 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 48 [2020-06-22 00:05:25,404 INFO L427 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:25,422 INFO L497 ElimStorePlain]: treesize reduction 14, result has 72.0 percent of original size [2020-06-22 00:05:25,422 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:05:25,422 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:90, output treesize:36 [2020-06-22 00:05:25,507 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:05:25,511 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:25,512 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 28 [2020-06-22 00:05:25,514 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-06-22 00:05:25,532 INFO L497 ElimStorePlain]: treesize reduction 10, result has 65.5 percent of original size [2020-06-22 00:05:25,533 INFO L427 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:25,533 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:48, output treesize:3 [2020-06-22 00:05:25,554 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:05:25,580 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-06-22 00:05:25,581 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 26 [2020-06-22 00:05:25,581 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-06-22 00:05:25,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-06-22 00:05:25,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=579, Unknown=0, NotChecked=0, Total=702 [2020-06-22 00:05:25,582 INFO L87 Difference]: Start difference. First operand 158 states and 247 transitions. Second operand 27 states. [2020-06-22 00:05:27,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:05:27,674 INFO L93 Difference]: Finished difference Result 286 states and 423 transitions. [2020-06-22 00:05:27,675 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-06-22 00:05:27,675 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 26 [2020-06-22 00:05:27,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 00:05:27,676 INFO L225 Difference]: With dead ends: 286 [2020-06-22 00:05:27,676 INFO L226 Difference]: Without dead ends: 284 [2020-06-22 00:05:27,677 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 11 SyntacticMatches, 3 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 510 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=392, Invalid=1500, Unknown=0, NotChecked=0, Total=1892 [2020-06-22 00:05:27,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2020-06-22 00:05:27,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 172. [2020-06-22 00:05:27,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-06-22 00:05:27,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 266 transitions. [2020-06-22 00:05:27,693 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 266 transitions. Word has length 26 [2020-06-22 00:05:27,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 00:05:27,694 INFO L480 AbstractCegarLoop]: Abstraction has 172 states and 266 transitions. [2020-06-22 00:05:27,694 INFO L481 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-06-22 00:05:27,694 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 266 transitions. [2020-06-22 00:05:27,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-06-22 00:05:27,694 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 00:05:27,694 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 00:05:27,695 INFO L423 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION]=== [2020-06-22 00:05:27,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:05:27,695 INFO L82 PathProgramCache]: Analyzing trace with hash 1424994871, now seen corresponding path program 3 times [2020-06-22 00:05:27,695 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:05:27,695 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:05:27,696 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:05:27,696 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 00:05:27,696 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:05:27,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:05:28,124 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:05:28,124 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2020-06-22 00:05:28,124 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2020-06-22 00:05:28,135 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2020-06-22 00:05:28,165 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-06-22 00:05:28,165 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-06-22 00:05:28,167 INFO L256 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 55 conjunts are in the unsatisfiable core [2020-06-22 00:05:28,168 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 00:05:28,189 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-06-22 00:05:28,189 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:28,200 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:28,200 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:28,200 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:27, output treesize:26 [2020-06-22 00:05:28,235 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:05:28,236 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:28,251 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:28,254 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:05:28,255 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:28,269 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:28,270 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:28,270 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:52, output treesize:44 [2020-06-22 00:05:28,353 INFO L340 Elim1Store]: treesize reduction 21, result has 41.7 percent of original size [2020-06-22 00:05:28,354 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 27 [2020-06-22 00:05:28,354 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:28,390 INFO L497 ElimStorePlain]: treesize reduction 8, result has 87.1 percent of original size [2020-06-22 00:05:28,393 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:05:28,394 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2020-06-22 00:05:28,395 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:28,409 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:28,409 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:28,409 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:77, output treesize:39 [2020-06-22 00:05:28,450 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:05:28,451 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2020-06-22 00:05:28,452 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:28,472 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:28,479 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:28,479 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2020-06-22 00:05:28,480 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:28,496 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:28,496 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:28,497 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:53, output treesize:46 [2020-06-22 00:05:28,591 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:05:28,592 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2020-06-22 00:05:28,592 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:28,620 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:28,624 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:05:28,625 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2020-06-22 00:05:28,625 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:28,651 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:28,652 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:28,652 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:79, output treesize:80 [2020-06-22 00:05:28,826 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:28,827 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 177 treesize of output 161 [2020-06-22 00:05:28,841 INFO L427 ElimStorePlain]: Start of recursive call 2: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-06-22 00:05:28,943 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 48 [2020-06-22 00:05:28,943 INFO L497 ElimStorePlain]: treesize reduction 76, result has 53.1 percent of original size [2020-06-22 00:05:28,948 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:05:28,949 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:05:28,950 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2020-06-22 00:05:28,950 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:28,975 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:28,976 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:05:28,976 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:195, output treesize:105 [2020-06-22 00:05:29,147 INFO L172 IndexEqualityManager]: detected equality via solver [2020-06-22 00:05:29,163 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:29,163 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 113 treesize of output 86 [2020-06-22 00:05:29,167 INFO L427 ElimStorePlain]: Start of recursive call 2: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-06-22 00:05:29,233 INFO L497 ElimStorePlain]: treesize reduction 31, result has 70.5 percent of original size [2020-06-22 00:05:29,239 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:05:29,244 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:29,244 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 25 [2020-06-22 00:05:29,245 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:29,285 INFO L497 ElimStorePlain]: treesize reduction 9, result has 84.2 percent of original size [2020-06-22 00:05:29,286 INFO L427 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:05:29,286 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:138, output treesize:29 [2020-06-22 00:05:29,333 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:05:29,359 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-06-22 00:05:29,360 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 16] total 26 [2020-06-22 00:05:29,360 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-06-22 00:05:29,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-06-22 00:05:29,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=602, Unknown=0, NotChecked=0, Total=702 [2020-06-22 00:05:29,361 INFO L87 Difference]: Start difference. First operand 172 states and 266 transitions. Second operand 27 states. [2020-06-22 00:05:31,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:05:31,882 INFO L93 Difference]: Finished difference Result 274 states and 416 transitions. [2020-06-22 00:05:31,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-06-22 00:05:31,882 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 26 [2020-06-22 00:05:31,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 00:05:31,884 INFO L225 Difference]: With dead ends: 274 [2020-06-22 00:05:31,884 INFO L226 Difference]: Without dead ends: 268 [2020-06-22 00:05:31,885 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 11 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=250, Invalid=1232, Unknown=0, NotChecked=0, Total=1482 [2020-06-22 00:05:31,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2020-06-22 00:05:31,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 165. [2020-06-22 00:05:31,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2020-06-22 00:05:31,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 256 transitions. [2020-06-22 00:05:31,899 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 256 transitions. Word has length 26 [2020-06-22 00:05:31,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 00:05:31,899 INFO L480 AbstractCegarLoop]: Abstraction has 165 states and 256 transitions. [2020-06-22 00:05:31,900 INFO L481 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-06-22 00:05:31,900 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 256 transitions. [2020-06-22 00:05:31,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-06-22 00:05:31,900 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 00:05:31,900 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 00:05:31,901 INFO L423 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION]=== [2020-06-22 00:05:31,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:05:31,901 INFO L82 PathProgramCache]: Analyzing trace with hash 626033236, now seen corresponding path program 2 times [2020-06-22 00:05:31,901 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:05:31,901 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:05:31,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:05:31,902 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 00:05:31,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:05:31,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:05:32,286 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:05:32,286 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2020-06-22 00:05:32,287 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2020-06-22 00:05:32,297 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2020-06-22 00:05:32,323 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-06-22 00:05:32,323 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-06-22 00:05:32,325 INFO L256 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 50 conjunts are in the unsatisfiable core [2020-06-22 00:05:32,326 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 00:05:32,330 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-06-22 00:05:32,330 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:32,333 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:32,334 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:32,334 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-06-22 00:05:32,403 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:05:32,403 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2020-06-22 00:05:32,404 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:32,416 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:32,416 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:32,416 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:29 [2020-06-22 00:05:32,454 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:05:32,454 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:32,473 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:32,476 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:05:32,476 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:32,493 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:32,493 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:32,494 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:55, output treesize:47 [2020-06-22 00:05:32,579 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:05:32,580 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 21 [2020-06-22 00:05:32,580 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:32,603 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:32,606 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:05:32,607 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2020-06-22 00:05:32,607 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:32,623 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:32,623 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:32,624 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:92, output treesize:50 [2020-06-22 00:05:32,672 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:05:32,674 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:05:32,686 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:32,689 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 47 [2020-06-22 00:05:32,689 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:32,738 INFO L497 ElimStorePlain]: treesize reduction 14, result has 81.6 percent of original size [2020-06-22 00:05:32,738 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:32,738 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:64, output treesize:62 [2020-06-22 00:05:32,799 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:05:32,800 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2020-06-22 00:05:32,800 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:32,830 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:32,835 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:05:32,835 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 25 [2020-06-22 00:05:32,836 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:32,866 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:32,866 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:32,867 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:88, output treesize:80 [2020-06-22 00:05:33,001 INFO L388 ElimStorePlain]: Different consts {2=[|v_#memory_$Pointer$.offset_76|], 6=[|v_#memory_$Pointer$.base_84|]} [2020-06-22 00:05:33,005 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 14 [2020-06-22 00:05:33,006 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:33,034 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:33,038 INFO L172 IndexEqualityManager]: detected equality via solver [2020-06-22 00:05:33,072 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:33,072 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 104 treesize of output 124 [2020-06-22 00:05:33,085 INFO L427 ElimStorePlain]: Start of recursive call 3: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-06-22 00:05:33,161 INFO L497 ElimStorePlain]: treesize reduction 70, result has 48.1 percent of original size [2020-06-22 00:05:33,162 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:05:33,162 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:177, output treesize:87 [2020-06-22 00:05:33,222 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2020-06-22 00:05:33,222 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:33,244 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:33,245 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-06-22 00:05:33,245 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:98, output treesize:83 [2020-06-22 00:05:33,306 INFO L172 IndexEqualityManager]: detected equality via solver [2020-06-22 00:05:33,307 INFO L172 IndexEqualityManager]: detected equality via solver [2020-06-22 00:05:33,318 INFO L340 Elim1Store]: treesize reduction 8, result has 60.0 percent of original size [2020-06-22 00:05:33,318 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 72 treesize of output 38 [2020-06-22 00:05:33,320 INFO L427 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:05:33,354 INFO L497 ElimStorePlain]: treesize reduction 8, result has 82.6 percent of original size [2020-06-22 00:05:33,355 INFO L427 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-06-22 00:05:33,355 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:89, output treesize:29 [2020-06-22 00:05:33,404 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:05:33,430 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-06-22 00:05:33,431 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 26 [2020-06-22 00:05:33,431 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-06-22 00:05:33,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-06-22 00:05:33,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=577, Unknown=0, NotChecked=0, Total=702 [2020-06-22 00:05:33,432 INFO L87 Difference]: Start difference. First operand 165 states and 256 transitions. Second operand 27 states. [2020-06-22 00:05:36,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:05:36,277 INFO L93 Difference]: Finished difference Result 380 states and 583 transitions. [2020-06-22 00:05:36,277 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-06-22 00:05:36,277 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 26 [2020-06-22 00:05:36,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 00:05:36,279 INFO L225 Difference]: With dead ends: 380 [2020-06-22 00:05:36,279 INFO L226 Difference]: Without dead ends: 325 [2020-06-22 00:05:36,280 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 406 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=380, Invalid=1512, Unknown=0, NotChecked=0, Total=1892 [2020-06-22 00:05:36,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2020-06-22 00:05:36,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 177. [2020-06-22 00:05:36,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2020-06-22 00:05:36,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 275 transitions. [2020-06-22 00:05:36,295 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 275 transitions. Word has length 26 [2020-06-22 00:05:36,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 00:05:36,295 INFO L480 AbstractCegarLoop]: Abstraction has 177 states and 275 transitions. [2020-06-22 00:05:36,295 INFO L481 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-06-22 00:05:36,295 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 275 transitions. [2020-06-22 00:05:36,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-06-22 00:05:36,296 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 00:05:36,296 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 00:05:36,296 INFO L423 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION]=== [2020-06-22 00:05:36,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:05:36,297 INFO L82 PathProgramCache]: Analyzing trace with hash 626033238, now seen corresponding path program 2 times [2020-06-22 00:05:36,297 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:05:36,297 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:05:36,297 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:05:36,298 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 00:05:36,298 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:05:36,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:05:36,705 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:05:36,706 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2020-06-22 00:05:36,706 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2020-06-22 00:05:36,716 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2020-06-22 00:05:36,742 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-06-22 00:05:36,742 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-06-22 00:05:36,744 INFO L256 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 50 conjunts are in the unsatisfiable core [2020-06-22 00:05:36,745 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 00:05:36,749 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-06-22 00:05:36,749 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:36,753 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:36,753 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:36,753 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-06-22 00:05:36,823 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:05:36,824 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2020-06-22 00:05:36,824 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:36,838 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:36,838 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:36,838 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:29 [2020-06-22 00:05:36,875 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:05:36,876 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:36,895 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:36,899 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:05:36,899 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:36,916 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:36,917 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:36,917 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:55, output treesize:47 [2020-06-22 00:05:37,015 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:05:37,016 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2020-06-22 00:05:37,016 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:37,038 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:37,042 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:05:37,042 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 21 [2020-06-22 00:05:37,043 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:37,057 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:37,057 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:37,058 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:89, output treesize:53 [2020-06-22 00:05:37,091 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:05:37,092 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:05:37,097 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:37,097 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 18 [2020-06-22 00:05:37,098 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:37,113 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:37,114 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:37,114 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:70, output treesize:53 [2020-06-22 00:05:37,167 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:05:37,168 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 25 [2020-06-22 00:05:37,168 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:37,195 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:37,225 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:37,226 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 59 [2020-06-22 00:05:37,226 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:37,275 INFO L497 ElimStorePlain]: treesize reduction 34, result has 63.4 percent of original size [2020-06-22 00:05:37,275 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:37,276 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:79, output treesize:59 [2020-06-22 00:05:37,388 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:05:37,421 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:37,421 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 174 treesize of output 224 [2020-06-22 00:05:37,428 INFO L427 ElimStorePlain]: Start of recursive call 2: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-06-22 00:05:37,493 INFO L497 ElimStorePlain]: treesize reduction 134, result has 45.5 percent of original size [2020-06-22 00:05:37,538 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:37,538 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 93 treesize of output 129 [2020-06-22 00:05:37,541 INFO L427 ElimStorePlain]: Start of recursive call 3: 2 dim-0 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:37,596 INFO L497 ElimStorePlain]: treesize reduction 202, result has 25.2 percent of original size [2020-06-22 00:05:37,597 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:37,597 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:187, output treesize:73 [2020-06-22 00:05:37,656 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:37,657 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 48 [2020-06-22 00:05:37,658 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:37,679 INFO L497 ElimStorePlain]: treesize reduction 23, result has 59.6 percent of original size [2020-06-22 00:05:37,680 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:05:37,680 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:84, output treesize:34 [2020-06-22 00:05:37,773 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:05:37,777 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:37,779 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 28 [2020-06-22 00:05:37,781 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-06-22 00:05:37,800 INFO L497 ElimStorePlain]: treesize reduction 10, result has 63.0 percent of original size [2020-06-22 00:05:37,801 INFO L427 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:37,801 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:46, output treesize:3 [2020-06-22 00:05:37,828 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:05:37,854 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-06-22 00:05:37,854 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 27 [2020-06-22 00:05:37,855 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-06-22 00:05:37,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-06-22 00:05:37,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=642, Unknown=0, NotChecked=0, Total=756 [2020-06-22 00:05:37,856 INFO L87 Difference]: Start difference. First operand 177 states and 275 transitions. Second operand 28 states. [2020-06-22 00:05:41,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:05:41,254 INFO L93 Difference]: Finished difference Result 316 states and 462 transitions. [2020-06-22 00:05:41,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-06-22 00:05:41,254 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 26 [2020-06-22 00:05:41,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 00:05:41,256 INFO L225 Difference]: With dead ends: 316 [2020-06-22 00:05:41,256 INFO L226 Difference]: Without dead ends: 314 [2020-06-22 00:05:41,257 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 606 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=537, Invalid=2219, Unknown=0, NotChecked=0, Total=2756 [2020-06-22 00:05:41,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2020-06-22 00:05:41,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 176. [2020-06-22 00:05:41,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2020-06-22 00:05:41,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 271 transitions. [2020-06-22 00:05:41,287 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 271 transitions. Word has length 26 [2020-06-22 00:05:41,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 00:05:41,288 INFO L480 AbstractCegarLoop]: Abstraction has 176 states and 271 transitions. [2020-06-22 00:05:41,288 INFO L481 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-06-22 00:05:41,288 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 271 transitions. [2020-06-22 00:05:41,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-06-22 00:05:41,288 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 00:05:41,289 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 00:05:41,289 INFO L423 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION]=== [2020-06-22 00:05:41,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:05:41,289 INFO L82 PathProgramCache]: Analyzing trace with hash 626033239, now seen corresponding path program 2 times [2020-06-22 00:05:41,289 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:05:41,289 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:05:41,290 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:05:41,290 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 00:05:41,290 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:05:41,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:05:41,728 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:05:41,729 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2020-06-22 00:05:41,729 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2020-06-22 00:05:41,740 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2020-06-22 00:05:41,765 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-06-22 00:05:41,766 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-06-22 00:05:41,767 INFO L256 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 53 conjunts are in the unsatisfiable core [2020-06-22 00:05:41,769 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 00:05:41,773 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-06-22 00:05:41,774 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:41,777 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:41,778 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:41,778 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-06-22 00:05:41,851 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:05:41,852 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2020-06-22 00:05:41,852 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:41,864 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:41,864 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:41,864 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:29 [2020-06-22 00:05:41,903 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:05:41,903 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:41,921 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:41,924 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:05:41,924 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:41,941 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:41,941 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:41,942 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:55, output treesize:47 [2020-06-22 00:05:42,029 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:05:42,029 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2020-06-22 00:05:42,030 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:42,050 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:42,054 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:05:42,054 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 21 [2020-06-22 00:05:42,055 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:42,070 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:42,071 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:42,071 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:92, output treesize:50 [2020-06-22 00:05:42,118 INFO L388 ElimStorePlain]: Different consts {0=[|v_#length_41|], 3=[|v_#valid_81|]} [2020-06-22 00:05:42,122 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-06-22 00:05:42,122 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:42,148 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:42,152 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:05:42,154 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:05:42,158 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:42,158 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 18 [2020-06-22 00:05:42,158 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:42,178 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:42,179 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:42,179 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:67, output treesize:55 [2020-06-22 00:05:42,237 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:05:42,238 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2020-06-22 00:05:42,238 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:42,268 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:42,273 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:05:42,273 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 25 [2020-06-22 00:05:42,274 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:42,299 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:42,300 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:42,300 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:81, output treesize:79 [2020-06-22 00:05:42,421 INFO L172 IndexEqualityManager]: detected equality via solver [2020-06-22 00:05:42,455 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:42,456 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 153 treesize of output 143 [2020-06-22 00:05:42,467 INFO L427 ElimStorePlain]: Start of recursive call 2: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-06-22 00:05:42,544 INFO L497 ElimStorePlain]: treesize reduction 70, result has 53.0 percent of original size [2020-06-22 00:05:42,549 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:05:42,550 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:05:42,551 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 26 [2020-06-22 00:05:42,551 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:42,575 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:42,575 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:05:42,576 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:176, output treesize:86 [2020-06-22 00:05:42,692 INFO L172 IndexEqualityManager]: detected equality via solver [2020-06-22 00:05:42,693 INFO L172 IndexEqualityManager]: detected equality via solver [2020-06-22 00:05:42,706 INFO L340 Elim1Store]: treesize reduction 8, result has 60.0 percent of original size [2020-06-22 00:05:42,706 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 97 treesize of output 55 [2020-06-22 00:05:42,707 INFO L427 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:05:42,748 INFO L497 ElimStorePlain]: treesize reduction 8, result has 87.9 percent of original size [2020-06-22 00:05:42,752 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:05:42,756 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:42,756 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 28 [2020-06-22 00:05:42,758 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2020-06-22 00:05:42,788 INFO L497 ElimStorePlain]: treesize reduction 10, result has 74.4 percent of original size [2020-06-22 00:05:42,789 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:42,795 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:117, output treesize:12 [2020-06-22 00:05:42,834 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:05:42,860 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-06-22 00:05:42,860 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 27 [2020-06-22 00:05:42,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-06-22 00:05:42,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-06-22 00:05:42,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=666, Unknown=0, NotChecked=0, Total=756 [2020-06-22 00:05:42,861 INFO L87 Difference]: Start difference. First operand 176 states and 271 transitions. Second operand 28 states. [2020-06-22 00:05:46,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:05:46,890 INFO L93 Difference]: Finished difference Result 304 states and 453 transitions. [2020-06-22 00:05:46,890 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-06-22 00:05:46,890 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 26 [2020-06-22 00:05:46,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 00:05:46,892 INFO L225 Difference]: With dead ends: 304 [2020-06-22 00:05:46,892 INFO L226 Difference]: Without dead ends: 297 [2020-06-22 00:05:46,893 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 434 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=333, Invalid=2019, Unknown=0, NotChecked=0, Total=2352 [2020-06-22 00:05:46,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2020-06-22 00:05:46,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 162. [2020-06-22 00:05:46,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-06-22 00:05:46,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 252 transitions. [2020-06-22 00:05:46,906 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 252 transitions. Word has length 26 [2020-06-22 00:05:46,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 00:05:46,906 INFO L480 AbstractCegarLoop]: Abstraction has 162 states and 252 transitions. [2020-06-22 00:05:46,906 INFO L481 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-06-22 00:05:46,906 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 252 transitions. [2020-06-22 00:05:46,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-06-22 00:05:46,907 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 00:05:46,907 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 00:05:46,907 INFO L423 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION]=== [2020-06-22 00:05:46,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:05:46,908 INFO L82 PathProgramCache]: Analyzing trace with hash -585207722, now seen corresponding path program 3 times [2020-06-22 00:05:46,908 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:05:46,908 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:05:46,908 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:05:46,909 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 00:05:46,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:05:46,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:05:47,323 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:05:47,323 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2020-06-22 00:05:47,324 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2020-06-22 00:05:47,334 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2020-06-22 00:05:47,368 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-06-22 00:05:47,368 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-06-22 00:05:47,370 INFO L256 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 55 conjunts are in the unsatisfiable core [2020-06-22 00:05:47,372 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 00:05:47,375 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-06-22 00:05:47,376 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:47,380 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:47,380 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:47,380 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-06-22 00:05:47,386 INFO L388 ElimStorePlain]: Different consts {0=[|v_#length_42|], 3=[|v_#valid_83|]} [2020-06-22 00:05:47,389 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-06-22 00:05:47,389 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:47,404 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:47,420 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:47,421 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2020-06-22 00:05:47,421 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:47,451 INFO L497 ElimStorePlain]: treesize reduction 14, result has 69.6 percent of original size [2020-06-22 00:05:47,452 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:47,452 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:35, output treesize:32 [2020-06-22 00:05:47,488 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:05:47,489 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:47,506 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:47,510 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:05:47,510 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:47,526 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:47,526 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:47,526 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:55, output treesize:56 [2020-06-22 00:05:47,566 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-06-22 00:05:47,567 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:47,578 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:47,578 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:47,578 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:56, output treesize:45 [2020-06-22 00:05:47,614 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 25 [2020-06-22 00:05:47,615 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:47,625 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:47,625 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:47,625 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:65, output treesize:33 [2020-06-22 00:05:47,647 INFO L388 ElimStorePlain]: Different consts {1=[|v_#length_43|], 6=[|v_#valid_84|]} [2020-06-22 00:05:47,651 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:05:47,652 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2020-06-22 00:05:47,652 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:47,670 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:47,700 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:47,700 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 89 [2020-06-22 00:05:47,701 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:47,747 INFO L497 ElimStorePlain]: treesize reduction 40, result has 62.6 percent of original size [2020-06-22 00:05:47,748 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:47,748 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:62, output treesize:67 [2020-06-22 00:05:47,794 INFO L172 IndexEqualityManager]: detected equality via solver [2020-06-22 00:05:47,804 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:47,804 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 54 [2020-06-22 00:05:47,805 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:47,847 INFO L497 ElimStorePlain]: treesize reduction 20, result has 73.7 percent of original size [2020-06-22 00:05:47,848 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:47,848 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:80, output treesize:71 [2020-06-22 00:05:47,965 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:47,965 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 112 treesize of output 124 [2020-06-22 00:05:47,970 INFO L427 ElimStorePlain]: Start of recursive call 2: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-06-22 00:05:48,014 INFO L497 ElimStorePlain]: treesize reduction 64, result has 44.3 percent of original size [2020-06-22 00:05:48,014 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:48,014 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:120, output treesize:81 [2020-06-22 00:05:48,140 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 12 [2020-06-22 00:05:48,141 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:48,154 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:48,158 INFO L172 IndexEqualityManager]: detected equality via solver [2020-06-22 00:05:48,169 INFO L340 Elim1Store]: treesize reduction 8, result has 60.0 percent of original size [2020-06-22 00:05:48,169 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 64 treesize of output 36 [2020-06-22 00:05:48,170 INFO L427 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:05:48,196 INFO L497 ElimStorePlain]: treesize reduction 4, result has 89.5 percent of original size [2020-06-22 00:05:48,197 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-06-22 00:05:48,197 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:105, output treesize:28 [2020-06-22 00:05:48,251 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:05:48,278 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-06-22 00:05:48,278 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 23 [2020-06-22 00:05:48,278 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-06-22 00:05:48,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-06-22 00:05:48,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=461, Unknown=0, NotChecked=0, Total=552 [2020-06-22 00:05:48,280 INFO L87 Difference]: Start difference. First operand 162 states and 252 transitions. Second operand 24 states. [2020-06-22 00:05:49,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:05:49,916 INFO L93 Difference]: Finished difference Result 212 states and 321 transitions. [2020-06-22 00:05:49,916 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-06-22 00:05:49,917 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 26 [2020-06-22 00:05:49,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 00:05:49,918 INFO L225 Difference]: With dead ends: 212 [2020-06-22 00:05:49,918 INFO L226 Difference]: Without dead ends: 210 [2020-06-22 00:05:49,919 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 14 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=190, Invalid=802, Unknown=0, NotChecked=0, Total=992 [2020-06-22 00:05:49,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2020-06-22 00:05:49,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 176. [2020-06-22 00:05:49,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2020-06-22 00:05:49,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 274 transitions. [2020-06-22 00:05:49,934 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 274 transitions. Word has length 26 [2020-06-22 00:05:49,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 00:05:49,935 INFO L480 AbstractCegarLoop]: Abstraction has 176 states and 274 transitions. [2020-06-22 00:05:49,935 INFO L481 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-06-22 00:05:49,935 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 274 transitions. [2020-06-22 00:05:49,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-06-22 00:05:49,935 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 00:05:49,936 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 00:05:49,936 INFO L423 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION]=== [2020-06-22 00:05:49,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:05:49,936 INFO L82 PathProgramCache]: Analyzing trace with hash -585207720, now seen corresponding path program 2 times [2020-06-22 00:05:49,936 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:05:49,936 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:05:49,937 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:05:49,937 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 00:05:49,937 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:05:49,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:05:50,327 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:05:50,327 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2020-06-22 00:05:50,327 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2020-06-22 00:05:50,338 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2020-06-22 00:05:50,365 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-06-22 00:05:50,366 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-06-22 00:05:50,367 INFO L256 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 48 conjunts are in the unsatisfiable core [2020-06-22 00:05:50,368 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 00:05:50,372 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-06-22 00:05:50,372 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:50,376 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:50,376 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:50,376 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-06-22 00:05:50,395 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:50,395 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2020-06-22 00:05:50,396 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:50,420 INFO L497 ElimStorePlain]: treesize reduction 14, result has 65.9 percent of original size [2020-06-22 00:05:50,420 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:50,420 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:29, output treesize:27 [2020-06-22 00:05:50,451 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:05:50,452 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:50,469 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:50,472 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:05:50,472 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:50,487 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:50,487 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:50,488 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:53, output treesize:45 [2020-06-22 00:05:50,555 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:05:50,556 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2020-06-22 00:05:50,557 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:50,574 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:50,578 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:05:50,578 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 20 [2020-06-22 00:05:50,579 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:50,591 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:50,591 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:50,592 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:80, output treesize:42 [2020-06-22 00:05:50,614 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:50,614 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 26 [2020-06-22 00:05:50,615 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:50,627 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:50,627 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:50,627 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:43, output treesize:36 [2020-06-22 00:05:50,660 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2020-06-22 00:05:50,661 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:50,679 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:50,682 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2020-06-22 00:05:50,683 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:50,713 INFO L497 ElimStorePlain]: treesize reduction 4, result has 92.6 percent of original size [2020-06-22 00:05:50,713 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:50,713 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:62, output treesize:50 [2020-06-22 00:05:50,805 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:50,806 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 118 treesize of output 126 [2020-06-22 00:05:50,816 INFO L427 ElimStorePlain]: Start of recursive call 2: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-06-22 00:05:50,861 INFO L497 ElimStorePlain]: treesize reduction 64, result has 46.2 percent of original size [2020-06-22 00:05:50,864 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:05:50,865 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2020-06-22 00:05:50,866 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:50,877 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:50,877 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:50,878 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:128, output treesize:50 [2020-06-22 00:05:50,916 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:50,917 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 30 [2020-06-22 00:05:50,917 INFO L427 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:50,925 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:50,925 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:05:50,925 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:61, output treesize:26 [2020-06-22 00:05:50,966 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:50,966 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 23 [2020-06-22 00:05:50,966 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:50,970 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:50,970 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:50,971 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:32, output treesize:3 [2020-06-22 00:05:50,990 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:05:51,016 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-06-22 00:05:51,016 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 22 [2020-06-22 00:05:51,017 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-06-22 00:05:51,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-06-22 00:05:51,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=414, Unknown=0, NotChecked=0, Total=506 [2020-06-22 00:05:51,017 INFO L87 Difference]: Start difference. First operand 176 states and 274 transitions. Second operand 23 states. [2020-06-22 00:05:52,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:05:52,337 INFO L93 Difference]: Finished difference Result 214 states and 319 transitions. [2020-06-22 00:05:52,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-06-22 00:05:52,338 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 26 [2020-06-22 00:05:52,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 00:05:52,339 INFO L225 Difference]: With dead ends: 214 [2020-06-22 00:05:52,339 INFO L226 Difference]: Without dead ends: 212 [2020-06-22 00:05:52,340 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 15 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=195, Invalid=797, Unknown=0, NotChecked=0, Total=992 [2020-06-22 00:05:52,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-06-22 00:05:52,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 175. [2020-06-22 00:05:52,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2020-06-22 00:05:52,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 270 transitions. [2020-06-22 00:05:52,355 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 270 transitions. Word has length 26 [2020-06-22 00:05:52,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 00:05:52,355 INFO L480 AbstractCegarLoop]: Abstraction has 175 states and 270 transitions. [2020-06-22 00:05:52,356 INFO L481 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-06-22 00:05:52,356 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 270 transitions. [2020-06-22 00:05:52,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-06-22 00:05:52,356 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 00:05:52,356 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 00:05:52,356 INFO L423 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION]=== [2020-06-22 00:05:52,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:05:52,357 INFO L82 PathProgramCache]: Analyzing trace with hash -585207719, now seen corresponding path program 2 times [2020-06-22 00:05:52,357 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:05:52,357 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:05:52,358 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:05:52,358 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 00:05:52,358 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:05:52,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:05:52,785 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:05:52,785 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2020-06-22 00:05:52,786 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2020-06-22 00:05:52,797 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2020-06-22 00:05:52,824 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-06-22 00:05:52,825 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-06-22 00:05:52,827 INFO L256 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 51 conjunts are in the unsatisfiable core [2020-06-22 00:05:52,828 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 00:05:52,832 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-06-22 00:05:52,832 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:52,836 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:52,836 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:52,836 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-06-22 00:05:52,841 INFO L388 ElimStorePlain]: Different consts {0=[|v_#length_44|], 3=[|v_#valid_89|]} [2020-06-22 00:05:52,844 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-06-22 00:05:52,844 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:52,858 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:52,872 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:52,872 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2020-06-22 00:05:52,873 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:52,902 INFO L497 ElimStorePlain]: treesize reduction 14, result has 69.6 percent of original size [2020-06-22 00:05:52,902 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:52,903 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:35, output treesize:32 [2020-06-22 00:05:52,940 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:05:52,940 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:52,959 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:52,962 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:05:52,962 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:52,981 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:52,982 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:52,982 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:58, output treesize:56 [2020-06-22 00:05:53,024 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-06-22 00:05:53,025 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:53,036 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:53,036 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:53,036 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:56, output treesize:45 [2020-06-22 00:05:53,073 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:05:53,074 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 25 [2020-06-22 00:05:53,074 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:53,086 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:53,087 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:53,087 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:63, output treesize:36 [2020-06-22 00:05:53,122 INFO L388 ElimStorePlain]: Different consts {1=[|v_#length_45|], 3=[|v_#valid_90|]} [2020-06-22 00:05:53,126 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:05:53,126 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2020-06-22 00:05:53,127 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:53,145 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:53,156 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:53,156 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 26 [2020-06-22 00:05:53,157 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:53,172 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:53,172 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:53,173 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:50, output treesize:42 [2020-06-22 00:05:53,211 INFO L388 ElimStorePlain]: Different consts {0=[|v_#memory_$Pointer$.offset_91|], 2=[|v_#memory_$Pointer$.base_103|]} [2020-06-22 00:05:53,215 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:05:53,215 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:53,238 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:53,241 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2020-06-22 00:05:53,242 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:53,279 INFO L497 ElimStorePlain]: treesize reduction 4, result has 93.3 percent of original size [2020-06-22 00:05:53,279 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:53,280 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:68, output treesize:62 [2020-06-22 00:05:53,362 INFO L388 ElimStorePlain]: Different consts {2=[|v_#memory_$Pointer$.offset_92|], 6=[|v_#memory_$Pointer$.base_104|]} [2020-06-22 00:05:53,366 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 17 [2020-06-22 00:05:53,366 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:53,386 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:53,388 INFO L172 IndexEqualityManager]: detected equality via solver [2020-06-22 00:05:53,422 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:53,422 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 115 treesize of output 131 [2020-06-22 00:05:53,430 INFO L427 ElimStorePlain]: Start of recursive call 3: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-06-22 00:05:53,477 INFO L497 ElimStorePlain]: treesize reduction 70, result has 43.1 percent of original size [2020-06-22 00:05:53,478 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:05:53,478 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:169, output treesize:79 [2020-06-22 00:05:53,613 INFO L388 ElimStorePlain]: Different consts {2=[|#memory_$Pointer$.offset|], 6=[|#memory_$Pointer$.base|]} [2020-06-22 00:05:53,616 INFO L172 IndexEqualityManager]: detected equality via solver [2020-06-22 00:05:53,617 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 7 [2020-06-22 00:05:53,617 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:53,636 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:53,638 INFO L172 IndexEqualityManager]: detected equality via solver [2020-06-22 00:05:53,654 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:53,655 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 81 treesize of output 66 [2020-06-22 00:05:53,658 INFO L427 ElimStorePlain]: Start of recursive call 3: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-06-22 00:05:53,702 INFO L497 ElimStorePlain]: treesize reduction 27, result has 62.5 percent of original size [2020-06-22 00:05:53,703 INFO L427 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:05:53,703 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:116, output treesize:23 [2020-06-22 00:05:53,746 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:05:53,772 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-06-22 00:05:53,772 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 24 [2020-06-22 00:05:53,773 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-06-22 00:05:53,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-06-22 00:05:53,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2020-06-22 00:05:53,773 INFO L87 Difference]: Start difference. First operand 175 states and 270 transitions. Second operand 25 states. [2020-06-22 00:05:55,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:05:55,790 INFO L93 Difference]: Finished difference Result 210 states and 315 transitions. [2020-06-22 00:05:55,790 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-06-22 00:05:55,790 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 26 [2020-06-22 00:05:55,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 00:05:55,791 INFO L225 Difference]: With dead ends: 210 [2020-06-22 00:05:55,791 INFO L226 Difference]: Without dead ends: 204 [2020-06-22 00:05:55,792 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 14 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=165, Invalid=957, Unknown=0, NotChecked=0, Total=1122 [2020-06-22 00:05:55,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2020-06-22 00:05:55,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 153. [2020-06-22 00:05:55,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-06-22 00:05:55,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 237 transitions. [2020-06-22 00:05:55,805 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 237 transitions. Word has length 26 [2020-06-22 00:05:55,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 00:05:55,805 INFO L480 AbstractCegarLoop]: Abstraction has 153 states and 237 transitions. [2020-06-22 00:05:55,805 INFO L481 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-06-22 00:05:55,805 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 237 transitions. [2020-06-22 00:05:55,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-06-22 00:05:55,806 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 00:05:55,806 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 00:05:55,806 INFO L423 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION]=== [2020-06-22 00:05:55,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:05:55,806 INFO L82 PathProgramCache]: Analyzing trace with hash 2120471747, now seen corresponding path program 5 times [2020-06-22 00:05:55,806 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:05:55,807 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:05:55,807 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:05:55,807 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 00:05:55,807 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:05:55,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:05:56,139 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:05:56,139 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2020-06-22 00:05:56,140 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2020-06-22 00:05:56,152 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2020-06-22 00:05:56,229 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2020-06-22 00:05:56,229 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-06-22 00:05:56,231 INFO L256 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 50 conjunts are in the unsatisfiable core [2020-06-22 00:05:56,232 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 00:05:56,291 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:56,292 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2020-06-22 00:05:56,292 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:56,313 INFO L497 ElimStorePlain]: treesize reduction 14, result has 63.2 percent of original size [2020-06-22 00:05:56,313 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:56,313 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:24 [2020-06-22 00:05:56,341 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:05:56,341 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:56,352 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:56,352 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:56,352 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:37, output treesize:36 [2020-06-22 00:05:56,425 INFO L340 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2020-06-22 00:05:56,425 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 32 [2020-06-22 00:05:56,426 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:56,444 INFO L497 ElimStorePlain]: treesize reduction 10, result has 73.0 percent of original size [2020-06-22 00:05:56,444 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:56,444 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:59, output treesize:27 [2020-06-22 00:05:56,492 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:56,492 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 28 treesize of output 99 [2020-06-22 00:05:56,493 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:56,528 INFO L497 ElimStorePlain]: treesize reduction 46, result has 55.8 percent of original size [2020-06-22 00:05:56,528 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:56,528 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:50, output treesize:58 [2020-06-22 00:05:56,579 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:56,580 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 69 [2020-06-22 00:05:56,580 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:56,615 INFO L497 ElimStorePlain]: treesize reduction 34, result has 59.0 percent of original size [2020-06-22 00:05:56,615 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:05:56,616 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:71, output treesize:58 [2020-06-22 00:05:56,748 INFO L340 Elim1Store]: treesize reduction 48, result has 53.4 percent of original size [2020-06-22 00:05:56,748 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 107 treesize of output 83 [2020-06-22 00:05:56,750 INFO L427 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:05:56,788 INFO L497 ElimStorePlain]: treesize reduction 36, result has 57.6 percent of original size [2020-06-22 00:05:56,789 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:05:56,789 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:120, output treesize:64 [2020-06-22 00:05:56,821 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:05:56,843 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:56,844 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 130 [2020-06-22 00:05:56,844 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:56,893 INFO L497 ElimStorePlain]: treesize reduction 82, result has 56.8 percent of original size [2020-06-22 00:05:56,894 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:05:56,894 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:109, output treesize:108 [2020-06-22 00:05:56,981 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:56,982 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 105 treesize of output 140 [2020-06-22 00:05:56,986 INFO L427 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:05:57,044 INFO L497 ElimStorePlain]: treesize reduction 84, result has 44.0 percent of original size [2020-06-22 00:05:57,045 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:05:57,045 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:121, output treesize:84 [2020-06-22 00:05:57,238 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:57,238 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 190 treesize of output 228 [2020-06-22 00:05:57,367 INFO L427 ElimStorePlain]: Start of recursive call 2: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-06-22 00:05:57,473 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 50 [2020-06-22 00:05:57,473 INFO L497 ElimStorePlain]: treesize reduction 130, result has 39.8 percent of original size [2020-06-22 00:05:57,477 INFO L427 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 6 dim-0 vars, and 1 xjuncts. [2020-06-22 00:05:57,478 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:198, output treesize:224 [2020-06-22 00:05:57,694 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 45 [2020-06-22 00:05:57,695 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:05:57,706 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:57,707 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 109 treesize of output 56 [2020-06-22 00:05:57,708 INFO L427 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:05:57,748 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:05:57,749 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 138 treesize of output 96 [2020-06-22 00:05:57,752 INFO L427 ElimStorePlain]: Start of recursive call 4: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-06-22 00:05:57,858 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 41 [2020-06-22 00:05:57,858 INFO L497 ElimStorePlain]: treesize reduction 72, result has 58.1 percent of original size [2020-06-22 00:05:57,860 INFO L427 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-2 vars, End of recursive call: 7 dim-0 vars, and 3 xjuncts. [2020-06-22 00:05:57,860 INFO L217 ElimStorePlain]: Needed 4 recursive calls to eliminate 8 variables, input treesize:341, output treesize:100 [2020-06-22 00:05:57,953 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:05:57,980 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-06-22 00:05:57,980 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15] total 30 [2020-06-22 00:05:57,980 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-06-22 00:05:57,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-06-22 00:05:57,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=805, Unknown=0, NotChecked=0, Total=930 [2020-06-22 00:05:57,981 INFO L87 Difference]: Start difference. First operand 153 states and 237 transitions. Second operand 31 states. [2020-06-22 00:06:08,165 WARN L188 SmtUtils]: Spent 6.26 s on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2020-06-22 00:06:12,058 WARN L188 SmtUtils]: Spent 3.83 s on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2020-06-22 00:06:12,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:06:12,470 INFO L93 Difference]: Finished difference Result 613 states and 931 transitions. [2020-06-22 00:06:12,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2020-06-22 00:06:12,471 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 29 [2020-06-22 00:06:12,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 00:06:12,473 INFO L225 Difference]: With dead ends: 613 [2020-06-22 00:06:12,474 INFO L226 Difference]: Without dead ends: 577 [2020-06-22 00:06:12,475 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 14 SyntacticMatches, 4 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1601 ImplicationChecksByTransitivity, 12.9s TimeCoverageRelationStatistics Valid=746, Invalid=3946, Unknown=0, NotChecked=0, Total=4692 [2020-06-22 00:06:12,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2020-06-22 00:06:12,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 294. [2020-06-22 00:06:12,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-06-22 00:06:12,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 455 transitions. [2020-06-22 00:06:12,498 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 455 transitions. Word has length 29 [2020-06-22 00:06:12,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 00:06:12,498 INFO L480 AbstractCegarLoop]: Abstraction has 294 states and 455 transitions. [2020-06-22 00:06:12,498 INFO L481 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-06-22 00:06:12,499 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 455 transitions. [2020-06-22 00:06:12,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-06-22 00:06:12,499 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 00:06:12,499 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 00:06:12,500 INFO L423 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION]=== [2020-06-22 00:06:12,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:06:12,500 INFO L82 PathProgramCache]: Analyzing trace with hash 2120471750, now seen corresponding path program 4 times [2020-06-22 00:06:12,500 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:06:12,500 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:06:12,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:06:12,501 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 00:06:12,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:06:12,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:06:12,874 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:06:12,874 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2020-06-22 00:06:12,874 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2020-06-22 00:06:12,885 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2020-06-22 00:06:12,917 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-06-22 00:06:12,917 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-06-22 00:06:12,919 INFO L256 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 51 conjunts are in the unsatisfiable core [2020-06-22 00:06:12,920 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 00:06:12,960 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:06:12,961 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:12,974 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:12,977 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:06:12,977 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:12,989 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:12,989 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:06:12,989 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:44, output treesize:24 [2020-06-22 00:06:13,066 INFO L340 Elim1Store]: treesize reduction 21, result has 41.7 percent of original size [2020-06-22 00:06:13,067 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 22 [2020-06-22 00:06:13,067 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:13,092 INFO L497 ElimStorePlain]: treesize reduction 8, result has 83.7 percent of original size [2020-06-22 00:06:13,095 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:06:13,096 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2020-06-22 00:06:13,096 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:13,105 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:13,105 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:06:13,106 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:60, output treesize:26 [2020-06-22 00:06:13,181 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:13,182 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 51 [2020-06-22 00:06:13,182 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:13,232 INFO L497 ElimStorePlain]: treesize reduction 28, result has 69.2 percent of original size [2020-06-22 00:06:13,236 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:06:13,237 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2020-06-22 00:06:13,237 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:13,257 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:13,257 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:06:13,257 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:71, output treesize:47 [2020-06-22 00:06:13,352 INFO L388 ElimStorePlain]: Different consts {2=[|v_#memory_$Pointer$.offset_96|], 6=[|v_#memory_$Pointer$.base_114|]} [2020-06-22 00:06:13,358 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:06:13,359 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2020-06-22 00:06:13,359 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:13,382 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:13,451 INFO L340 Elim1Store]: treesize reduction 44, result has 52.7 percent of original size [2020-06-22 00:06:13,451 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 73 [2020-06-22 00:06:13,454 INFO L427 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:06:13,525 INFO L497 ElimStorePlain]: treesize reduction 22, result has 73.2 percent of original size [2020-06-22 00:06:13,526 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:06:13,526 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:99, output treesize:73 [2020-06-22 00:06:13,588 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:06:13,593 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 71 [2020-06-22 00:06:13,593 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:13,599 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:06:13,602 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 75 [2020-06-22 00:06:13,602 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:13,710 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 47 [2020-06-22 00:06:13,711 INFO L497 ElimStorePlain]: treesize reduction 7, result has 95.0 percent of original size [2020-06-22 00:06:13,722 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:13,722 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 72 treesize of output 76 [2020-06-22 00:06:13,723 INFO L427 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:13,733 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:13,733 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 65 [2020-06-22 00:06:13,733 INFO L427 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:13,781 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:13,782 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2020-06-22 00:06:13,782 INFO L217 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:143, output treesize:122 [2020-06-22 00:06:13,892 INFO L388 ElimStorePlain]: Different consts {2=[|v_#memory_$Pointer$.offset_97|], 6=[|v_#memory_$Pointer$.base_115|]} [2020-06-22 00:06:13,898 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:06:13,904 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 80 [2020-06-22 00:06:13,904 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:13,910 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:06:13,913 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 91 [2020-06-22 00:06:13,914 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:13,981 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:13,989 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:06:14,020 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:14,020 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 88 treesize of output 129 [2020-06-22 00:06:14,021 INFO L427 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:14,026 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:06:14,029 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 68 [2020-06-22 00:06:14,030 INFO L427 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:14,171 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 55 [2020-06-22 00:06:14,171 INFO L497 ElimStorePlain]: treesize reduction 52, result has 77.0 percent of original size [2020-06-22 00:06:14,172 INFO L427 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2020-06-22 00:06:14,172 INFO L217 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:174, output treesize:174 [2020-06-22 00:06:14,556 INFO L388 ElimStorePlain]: Different consts {6=[|v_#memory_$Pointer$.offset_98|], 50=[|v_#memory_$Pointer$.base_116|]} [2020-06-22 00:06:14,573 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:06:14,586 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 172 treesize of output 130 [2020-06-22 00:06:14,586 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:14,599 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:06:14,617 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 237 treesize of output 177 [2020-06-22 00:06:14,617 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:14,625 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:06:14,629 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 170 treesize of output 128 [2020-06-22 00:06:14,629 INFO L427 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:14,783 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-06-22 00:06:14,784 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:14,841 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:14,841 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 127 treesize of output 149 [2020-06-22 00:06:14,845 INFO L427 ElimStorePlain]: Start of recursive call 5: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-06-22 00:06:14,903 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:14,903 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 125 treesize of output 147 [2020-06-22 00:06:14,909 INFO L427 ElimStorePlain]: Start of recursive call 6: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-06-22 00:06:14,996 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:14,996 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 174 treesize of output 226 [2020-06-22 00:06:15,062 INFO L427 ElimStorePlain]: Start of recursive call 7: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-06-22 00:06:15,296 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 88 [2020-06-22 00:06:15,296 INFO L497 ElimStorePlain]: treesize reduction 282, result has 39.9 percent of original size [2020-06-22 00:06:15,298 INFO L427 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-2 vars, End of recursive call: 5 dim-0 vars, and 3 xjuncts. [2020-06-22 00:06:15,299 INFO L217 ElimStorePlain]: Needed 7 recursive calls to eliminate 7 variables, input treesize:580, output treesize:341 [2020-06-22 00:06:15,489 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 69 [2020-06-22 00:06:17,112 INFO L388 ElimStorePlain]: Different consts {0=[|#memory_$Pointer$.offset|, v_prenex_14, v_prenex_17], 2=[|#memory_$Pointer$.base|, v_prenex_13], 6=[v_prenex_16]} [2020-06-22 00:06:17,118 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 85 [2020-06-22 00:06:17,119 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:17,182 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:17,187 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 83 [2020-06-22 00:06:17,188 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:17,248 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:17,254 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 114 [2020-06-22 00:06:17,254 INFO L427 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:17,310 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:17,322 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:17,322 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 53 [2020-06-22 00:06:17,323 INFO L427 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:06:17,429 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 75 [2020-06-22 00:06:17,430 INFO L497 ElimStorePlain]: treesize reduction 14, result has 94.1 percent of original size [2020-06-22 00:06:17,441 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:17,441 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 51 [2020-06-22 00:06:17,442 INFO L427 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:06:17,539 INFO L497 ElimStorePlain]: treesize reduction 14, result has 92.6 percent of original size [2020-06-22 00:06:17,563 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:17,563 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 111 treesize of output 87 [2020-06-22 00:06:17,566 INFO L427 ElimStorePlain]: Start of recursive call 7: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-06-22 00:06:17,671 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2020-06-22 00:06:17,672 INFO L497 ElimStorePlain]: treesize reduction 32, result has 77.6 percent of original size [2020-06-22 00:06:17,673 INFO L427 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 6 dim-2 vars, End of recursive call: 6 dim-0 vars, and 3 xjuncts. [2020-06-22 00:06:17,673 INFO L217 ElimStorePlain]: Needed 7 recursive calls to eliminate 13 variables, input treesize:307, output treesize:88 [2020-06-22 00:06:17,751 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:06:17,778 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-06-22 00:06:17,778 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 29 [2020-06-22 00:06:17,778 INFO L459 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-06-22 00:06:17,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-06-22 00:06:17,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=747, Unknown=0, NotChecked=0, Total=870 [2020-06-22 00:06:17,779 INFO L87 Difference]: Start difference. First operand 294 states and 455 transitions. Second operand 30 states. [2020-06-22 00:06:20,047 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 59 [2020-06-22 00:06:21,037 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2020-06-22 00:06:21,706 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2020-06-22 00:06:21,983 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 80 [2020-06-22 00:06:22,447 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 85 [2020-06-22 00:06:22,633 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 71 [2020-06-22 00:06:23,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:06:23,488 INFO L93 Difference]: Finished difference Result 613 states and 921 transitions. [2020-06-22 00:06:23,488 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-06-22 00:06:23,488 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 29 [2020-06-22 00:06:23,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 00:06:23,491 INFO L225 Difference]: With dead ends: 613 [2020-06-22 00:06:23,491 INFO L226 Difference]: Without dead ends: 606 [2020-06-22 00:06:23,492 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 14 SyntacticMatches, 5 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 877 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=421, Invalid=2659, Unknown=0, NotChecked=0, Total=3080 [2020-06-22 00:06:23,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2020-06-22 00:06:23,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 364. [2020-06-22 00:06:23,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 364 states. [2020-06-22 00:06:23,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 569 transitions. [2020-06-22 00:06:23,521 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 569 transitions. Word has length 29 [2020-06-22 00:06:23,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 00:06:23,521 INFO L480 AbstractCegarLoop]: Abstraction has 364 states and 569 transitions. [2020-06-22 00:06:23,522 INFO L481 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-06-22 00:06:23,522 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 569 transitions. [2020-06-22 00:06:23,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-06-22 00:06:23,523 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 00:06:23,523 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 00:06:23,523 INFO L423 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION]=== [2020-06-22 00:06:23,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:06:23,523 INFO L82 PathProgramCache]: Analyzing trace with hash 127006886, now seen corresponding path program 3 times [2020-06-22 00:06:23,523 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:06:23,523 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:06:23,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:06:23,524 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 00:06:23,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:06:23,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:06:23,977 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:06:23,977 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2020-06-22 00:06:23,977 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2020-06-22 00:06:23,988 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2020-06-22 00:06:24,038 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2020-06-22 00:06:24,038 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-06-22 00:06:24,040 INFO L256 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 57 conjunts are in the unsatisfiable core [2020-06-22 00:06:24,041 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 00:06:24,051 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-06-22 00:06:24,051 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:24,061 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:24,062 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:06:24,062 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:27, output treesize:26 [2020-06-22 00:06:24,100 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:06:24,101 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:24,120 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:24,123 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:06:24,123 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:24,140 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:24,141 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:06:24,141 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:57, output treesize:49 [2020-06-22 00:06:24,226 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:06:24,227 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2020-06-22 00:06:24,227 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:24,245 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:24,262 INFO L340 Elim1Store]: treesize reduction 21, result has 41.7 percent of original size [2020-06-22 00:06:24,263 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 27 [2020-06-22 00:06:24,263 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:24,291 INFO L497 ElimStorePlain]: treesize reduction 8, result has 83.0 percent of original size [2020-06-22 00:06:24,291 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:06:24,291 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:77, output treesize:39 [2020-06-22 00:06:24,342 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:06:24,344 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:06:24,353 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:24,354 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 36 [2020-06-22 00:06:24,354 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:24,394 INFO L497 ElimStorePlain]: treesize reduction 14, result has 77.0 percent of original size [2020-06-22 00:06:24,395 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:06:24,395 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:48, output treesize:47 [2020-06-22 00:06:24,482 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:06:24,483 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2020-06-22 00:06:24,483 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:24,509 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:24,513 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:06:24,514 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2020-06-22 00:06:24,514 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:24,536 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:24,536 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:06:24,536 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:75, output treesize:55 [2020-06-22 00:06:24,650 INFO L388 ElimStorePlain]: Different consts {2=[|v_#memory_$Pointer$.offset_102|], 6=[|v_#memory_$Pointer$.base_120|]} [2020-06-22 00:06:24,655 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:06:24,655 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2020-06-22 00:06:24,656 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:24,682 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:24,732 INFO L340 Elim1Store]: treesize reduction 44, result has 52.7 percent of original size [2020-06-22 00:06:24,733 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 73 [2020-06-22 00:06:24,739 INFO L427 ElimStorePlain]: Start of recursive call 3: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2020-06-22 00:06:24,862 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 60 [2020-06-22 00:06:24,862 INFO L497 ElimStorePlain]: treesize reduction 57, result has 69.4 percent of original size [2020-06-22 00:06:24,864 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-06-22 00:06:24,864 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:107, output treesize:160 [2020-06-22 00:06:25,003 INFO L388 ElimStorePlain]: Different consts {3=[|v_#length_48|], 6=[|v_#valid_97|]} [2020-06-22 00:06:25,008 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:06:25,013 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 62 [2020-06-22 00:06:25,013 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:25,018 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:06:25,021 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 93 [2020-06-22 00:06:25,021 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:25,079 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:25,084 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:06:25,086 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:06:25,093 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:25,093 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 61 [2020-06-22 00:06:25,094 INFO L427 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:25,098 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:06:25,100 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:06:25,104 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:25,104 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 88 [2020-06-22 00:06:25,105 INFO L427 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:25,152 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:25,153 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2020-06-22 00:06:25,153 INFO L217 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:152, output treesize:124 [2020-06-22 00:06:25,264 INFO L388 ElimStorePlain]: Different consts {2=[|v_#memory_$Pointer$.offset_103|], 6=[|v_#memory_$Pointer$.base_121|]} [2020-06-22 00:06:25,271 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:06:25,277 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 73 [2020-06-22 00:06:25,277 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:25,283 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:06:25,287 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 100 [2020-06-22 00:06:25,287 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:25,361 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:25,366 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:06:25,371 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 69 [2020-06-22 00:06:25,371 INFO L427 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:25,417 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:25,418 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 97 treesize of output 160 [2020-06-22 00:06:25,436 INFO L427 ElimStorePlain]: Start of recursive call 5: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-06-22 00:06:25,603 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 62 [2020-06-22 00:06:25,604 INFO L497 ElimStorePlain]: treesize reduction 64, result has 71.4 percent of original size [2020-06-22 00:06:25,627 INFO L427 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2020-06-22 00:06:25,627 INFO L217 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:176, output treesize:187 [2020-06-22 00:06:25,818 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2020-06-22 00:06:27,085 WARN L188 SmtUtils]: Spent 1.18 s on a formula simplification that was a NOOP. DAG size: 64 [2020-06-22 00:06:27,275 INFO L388 ElimStorePlain]: Different consts {6=[|v_#memory_$Pointer$.offset_104|], 50=[|v_#memory_$Pointer$.base_122|]} [2020-06-22 00:06:27,311 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 169 treesize of output 127 [2020-06-22 00:06:27,312 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:27,328 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 159 treesize of output 129 [2020-06-22 00:06:27,329 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:27,342 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 169 treesize of output 127 [2020-06-22 00:06:27,343 INFO L427 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:27,513 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-06-22 00:06:27,514 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:27,570 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:27,570 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 124 treesize of output 150 [2020-06-22 00:06:27,581 INFO L427 ElimStorePlain]: Start of recursive call 5: 3 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-06-22 00:06:27,604 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:06:27,634 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:27,634 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 124 treesize of output 136 [2020-06-22 00:06:27,636 INFO L427 ElimStorePlain]: Start of recursive call 6: 2 dim-0 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:06:27,725 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:27,725 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 126 treesize of output 229 [2020-06-22 00:06:28,537 INFO L427 ElimStorePlain]: Start of recursive call 7: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-06-22 00:06:28,780 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 76 [2020-06-22 00:06:28,780 INFO L497 ElimStorePlain]: treesize reduction 612, result has 27.6 percent of original size [2020-06-22 00:06:28,782 INFO L427 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 2 dim-2 vars, End of recursive call: 5 dim-0 vars, and 3 xjuncts. [2020-06-22 00:06:28,782 INFO L217 ElimStorePlain]: Needed 7 recursive calls to eliminate 8 variables, input treesize:498, output treesize:252 [2020-06-22 00:06:28,947 INFO L388 ElimStorePlain]: Different consts {0=[v_prenex_30, |#memory_$Pointer$.offset|, v_prenex_33], 2=[v_prenex_32, |#memory_$Pointer$.base|], 6=[v_prenex_29]} [2020-06-22 00:06:28,954 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 96 [2020-06-22 00:06:28,954 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:29,026 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:29,032 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 82 [2020-06-22 00:06:29,032 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:29,099 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:29,104 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 82 [2020-06-22 00:06:29,105 INFO L427 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:29,169 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:29,181 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:29,181 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 54 [2020-06-22 00:06:29,182 INFO L427 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:06:29,302 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 77 [2020-06-22 00:06:29,303 INFO L497 ElimStorePlain]: treesize reduction 14, result has 93.7 percent of original size [2020-06-22 00:06:29,308 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:06:29,309 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:29,309 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 40 [2020-06-22 00:06:29,310 INFO L427 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:06:29,364 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:29,388 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:29,388 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 93 treesize of output 90 [2020-06-22 00:06:29,392 INFO L427 ElimStorePlain]: Start of recursive call 7: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-06-22 00:06:29,507 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 65 [2020-06-22 00:06:29,508 INFO L497 ElimStorePlain]: treesize reduction 32, result has 79.1 percent of original size [2020-06-22 00:06:29,509 INFO L427 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 6 dim-2 vars, End of recursive call: 6 dim-0 vars, and 3 xjuncts. [2020-06-22 00:06:29,509 INFO L217 ElimStorePlain]: Needed 7 recursive calls to eliminate 14 variables, input treesize:285, output treesize:81 [2020-06-22 00:06:29,604 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:06:29,631 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-06-22 00:06:29,631 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 16] total 31 [2020-06-22 00:06:29,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-06-22 00:06:29,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-06-22 00:06:29,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=894, Unknown=0, NotChecked=0, Total=992 [2020-06-22 00:06:29,632 INFO L87 Difference]: Start difference. First operand 364 states and 569 transitions. Second operand 32 states. [2020-06-22 00:06:34,164 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 56 [2020-06-22 00:06:34,590 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 60 [2020-06-22 00:06:38,114 WARN L188 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 66 [2020-06-22 00:06:38,668 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 76 [2020-06-22 00:06:39,653 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 77 [2020-06-22 00:06:40,184 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 78 [2020-06-22 00:06:41,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:06:41,124 INFO L93 Difference]: Finished difference Result 630 states and 959 transitions. [2020-06-22 00:06:41,124 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-06-22 00:06:41,124 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 29 [2020-06-22 00:06:41,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 00:06:41,127 INFO L225 Difference]: With dead ends: 630 [2020-06-22 00:06:41,127 INFO L226 Difference]: Without dead ends: 565 [2020-06-22 00:06:41,129 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 13 SyntacticMatches, 5 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1231 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=651, Invalid=4041, Unknown=0, NotChecked=0, Total=4692 [2020-06-22 00:06:41,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2020-06-22 00:06:41,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 388. [2020-06-22 00:06:41,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 388 states. [2020-06-22 00:06:41,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 607 transitions. [2020-06-22 00:06:41,160 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 607 transitions. Word has length 29 [2020-06-22 00:06:41,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 00:06:41,160 INFO L480 AbstractCegarLoop]: Abstraction has 388 states and 607 transitions. [2020-06-22 00:06:41,160 INFO L481 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-06-22 00:06:41,161 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 607 transitions. [2020-06-22 00:06:41,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-06-22 00:06:41,161 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 00:06:41,162 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 00:06:41,162 INFO L423 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION]=== [2020-06-22 00:06:41,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:06:41,162 INFO L82 PathProgramCache]: Analyzing trace with hash 561429817, now seen corresponding path program 6 times [2020-06-22 00:06:41,162 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:06:41,162 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:06:41,163 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:06:41,163 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 00:06:41,163 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:06:41,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:06:41,512 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:06:41,513 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2020-06-22 00:06:41,513 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2020-06-22 00:06:41,523 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2020-06-22 00:06:41,559 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2020-06-22 00:06:41,559 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-06-22 00:06:41,561 INFO L256 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 61 conjunts are in the unsatisfiable core [2020-06-22 00:06:41,562 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 00:06:41,583 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-06-22 00:06:41,583 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:41,593 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:41,594 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:06:41,594 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:27, output treesize:26 [2020-06-22 00:06:41,628 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:06:41,628 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:41,643 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:41,646 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:06:41,646 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:41,660 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:41,660 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:06:41,660 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:49, output treesize:44 [2020-06-22 00:06:41,738 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:06:41,738 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 19 [2020-06-22 00:06:41,739 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:41,757 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:41,760 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:06:41,761 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2020-06-22 00:06:41,762 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:41,774 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:41,774 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:06:41,775 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:79, output treesize:45 [2020-06-22 00:06:41,821 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:41,821 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2020-06-22 00:06:41,821 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:41,835 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:41,836 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:06:41,836 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:53, output treesize:47 [2020-06-22 00:06:41,924 INFO L172 IndexEqualityManager]: detected equality via solver [2020-06-22 00:06:41,934 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:41,934 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 43 [2020-06-22 00:06:41,935 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:41,984 INFO L497 ElimStorePlain]: treesize reduction 16, result has 79.2 percent of original size [2020-06-22 00:06:41,988 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:06:41,988 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2020-06-22 00:06:41,988 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:42,008 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:42,008 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:06:42,008 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:73, output treesize:60 [2020-06-22 00:06:42,108 INFO L388 ElimStorePlain]: Different consts {0=[|v_#memory_int_20|], 6=[|v_#memory_$Pointer$.base_126|, |v_#memory_$Pointer$.offset_108|]} [2020-06-22 00:06:42,112 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 27 [2020-06-22 00:06:42,112 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:42,144 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:42,147 INFO L172 IndexEqualityManager]: detected equality via solver [2020-06-22 00:06:42,182 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:42,183 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 209 treesize of output 190 [2020-06-22 00:06:42,188 INFO L427 ElimStorePlain]: Start of recursive call 3: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-06-22 00:06:42,258 INFO L497 ElimStorePlain]: treesize reduction 106, result has 47.8 percent of original size [2020-06-22 00:06:42,262 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:06:42,263 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:06:42,264 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 44 [2020-06-22 00:06:42,264 INFO L427 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:42,287 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:42,287 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:06:42,288 INFO L217 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:244, output treesize:90 [2020-06-22 00:06:42,394 INFO L172 IndexEqualityManager]: detected equality via solver [2020-06-22 00:06:42,394 INFO L172 IndexEqualityManager]: detected equality via solver [2020-06-22 00:06:42,405 INFO L340 Elim1Store]: treesize reduction 8, result has 60.0 percent of original size [2020-06-22 00:06:42,406 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 103 treesize of output 57 [2020-06-22 00:06:42,407 INFO L427 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:06:42,444 INFO L497 ElimStorePlain]: treesize reduction 8, result has 87.9 percent of original size [2020-06-22 00:06:42,447 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:06:42,451 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:42,451 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 25 [2020-06-22 00:06:42,452 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2020-06-22 00:06:42,478 INFO L497 ElimStorePlain]: treesize reduction 7, result has 82.1 percent of original size [2020-06-22 00:06:42,478 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:06:42,478 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:121, output treesize:14 [2020-06-22 00:06:42,511 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-06-22 00:06:42,512 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:42,515 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:42,515 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:06:42,515 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:3 [2020-06-22 00:06:42,522 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:06:42,548 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-06-22 00:06:42,548 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17] total 27 [2020-06-22 00:06:42,549 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-06-22 00:06:42,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-06-22 00:06:42,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=603, Unknown=0, NotChecked=0, Total=702 [2020-06-22 00:06:42,549 INFO L87 Difference]: Start difference. First operand 388 states and 607 transitions. Second operand 27 states. [2020-06-22 00:06:44,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:06:44,189 INFO L93 Difference]: Finished difference Result 515 states and 782 transitions. [2020-06-22 00:06:44,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-06-22 00:06:44,189 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 29 [2020-06-22 00:06:44,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 00:06:44,191 INFO L225 Difference]: With dead ends: 515 [2020-06-22 00:06:44,191 INFO L226 Difference]: Without dead ends: 496 [2020-06-22 00:06:44,192 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 16 SyntacticMatches, 3 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=190, Invalid=1070, Unknown=0, NotChecked=0, Total=1260 [2020-06-22 00:06:44,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2020-06-22 00:06:44,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 397. [2020-06-22 00:06:44,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 397 states. [2020-06-22 00:06:44,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 620 transitions. [2020-06-22 00:06:44,228 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 620 transitions. Word has length 29 [2020-06-22 00:06:44,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 00:06:44,229 INFO L480 AbstractCegarLoop]: Abstraction has 397 states and 620 transitions. [2020-06-22 00:06:44,229 INFO L481 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-06-22 00:06:44,229 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 620 transitions. [2020-06-22 00:06:44,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-06-22 00:06:44,230 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 00:06:44,230 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 00:06:44,230 INFO L423 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION]=== [2020-06-22 00:06:44,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:06:44,230 INFO L82 PathProgramCache]: Analyzing trace with hash 1404205337, now seen corresponding path program 3 times [2020-06-22 00:06:44,231 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:06:44,231 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:06:44,231 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:06:44,232 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 00:06:44,232 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:06:44,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:06:44,671 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:06:44,672 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2020-06-22 00:06:44,685 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2020-06-22 00:06:44,696 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2020-06-22 00:06:44,760 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2020-06-22 00:06:44,760 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-06-22 00:06:44,763 INFO L256 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 62 conjunts are in the unsatisfiable core [2020-06-22 00:06:44,764 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 00:06:44,827 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:06:44,828 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2020-06-22 00:06:44,828 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:44,842 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:44,842 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:06:44,842 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:32, output treesize:31 [2020-06-22 00:06:44,885 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:06:44,885 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:44,904 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:44,907 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:06:44,907 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:44,923 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:44,924 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:06:44,924 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:57, output treesize:49 [2020-06-22 00:06:45,016 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:06:45,017 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2020-06-22 00:06:45,018 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:45,040 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:45,043 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:06:45,044 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 19 [2020-06-22 00:06:45,044 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:45,059 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:45,059 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:06:45,059 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:84, output treesize:46 [2020-06-22 00:06:45,106 INFO L388 ElimStorePlain]: Different consts {0=[|v_#length_49|], 3=[|v_#valid_101|]} [2020-06-22 00:06:45,109 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-06-22 00:06:45,110 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:45,131 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:45,136 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:06:45,149 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:45,150 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 26 [2020-06-22 00:06:45,150 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:45,168 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:45,168 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:06:45,168 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:60, output treesize:52 [2020-06-22 00:06:45,295 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:06:45,296 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2020-06-22 00:06:45,296 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:45,324 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:45,328 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:06:45,328 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2020-06-22 00:06:45,329 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:45,352 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:45,352 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:06:45,352 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:74, output treesize:75 [2020-06-22 00:06:45,471 INFO L388 ElimStorePlain]: Different consts {0=[|v_#memory_int_21|], 6=[|v_#memory_$Pointer$.offset_112|, |v_#memory_$Pointer$.base_130|]} [2020-06-22 00:06:45,476 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 27 [2020-06-22 00:06:45,476 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:45,514 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:45,518 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:06:45,519 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:06:45,520 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 185 treesize of output 126 [2020-06-22 00:06:45,520 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:45,548 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:45,551 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:06:45,552 INFO L172 IndexEqualityManager]: detected equality via solver [2020-06-22 00:06:45,555 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:45,555 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 125 treesize of output 73 [2020-06-22 00:06:45,556 INFO L427 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:45,603 INFO L497 ElimStorePlain]: treesize reduction 26, result has 80.2 percent of original size [2020-06-22 00:06:45,604 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:06:45,604 INFO L217 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:259, output treesize:105 [2020-06-22 00:06:45,669 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:06:45,670 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 13 [2020-06-22 00:06:45,670 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:45,689 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:45,690 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-06-22 00:06:45,690 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:116, output treesize:88 [2020-06-22 00:06:45,804 INFO L172 IndexEqualityManager]: detected equality via solver [2020-06-22 00:06:45,804 INFO L172 IndexEqualityManager]: detected equality via solver [2020-06-22 00:06:45,816 INFO L340 Elim1Store]: treesize reduction 8, result has 60.0 percent of original size [2020-06-22 00:06:45,817 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 80 treesize of output 40 [2020-06-22 00:06:45,817 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:45,832 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:45,832 INFO L427 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:06:45,833 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:97, output treesize:16 [2020-06-22 00:06:45,877 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:45,877 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2020-06-22 00:06:45,877 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-06-22 00:06:45,885 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:45,886 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:06:45,886 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:20 [2020-06-22 00:06:45,977 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:06:46,003 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-06-22 00:06:46,004 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 20] total 32 [2020-06-22 00:06:46,004 INFO L459 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-06-22 00:06:46,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-06-22 00:06:46,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=885, Unknown=0, NotChecked=0, Total=992 [2020-06-22 00:06:46,004 INFO L87 Difference]: Start difference. First operand 397 states and 620 transitions. Second operand 32 states. [2020-06-22 00:06:49,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:06:49,488 INFO L93 Difference]: Finished difference Result 590 states and 881 transitions. [2020-06-22 00:06:49,488 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-06-22 00:06:49,488 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 29 [2020-06-22 00:06:49,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 00:06:49,491 INFO L225 Difference]: With dead ends: 590 [2020-06-22 00:06:49,491 INFO L226 Difference]: Without dead ends: 571 [2020-06-22 00:06:49,492 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 690 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=336, Invalid=2744, Unknown=0, NotChecked=0, Total=3080 [2020-06-22 00:06:49,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2020-06-22 00:06:49,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 397. [2020-06-22 00:06:49,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 397 states. [2020-06-22 00:06:49,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 620 transitions. [2020-06-22 00:06:49,529 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 620 transitions. Word has length 29 [2020-06-22 00:06:49,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 00:06:49,530 INFO L480 AbstractCegarLoop]: Abstraction has 397 states and 620 transitions. [2020-06-22 00:06:49,530 INFO L481 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-06-22 00:06:49,530 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 620 transitions. [2020-06-22 00:06:49,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-06-22 00:06:49,531 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 00:06:49,531 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 00:06:49,531 INFO L423 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION]=== [2020-06-22 00:06:49,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:06:49,531 INFO L82 PathProgramCache]: Analyzing trace with hash 68783843, now seen corresponding path program 1 times [2020-06-22 00:06:49,532 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:06:49,532 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:06:49,532 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:06:49,532 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 00:06:49,533 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:06:49,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:06:49,542 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-06-22 00:06:49,543 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 00:06:49,543 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-06-22 00:06:49,543 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-06-22 00:06:49,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 00:06:49,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 00:06:49,544 INFO L87 Difference]: Start difference. First operand 397 states and 620 transitions. Second operand 3 states. [2020-06-22 00:06:49,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:06:49,648 INFO L93 Difference]: Finished difference Result 501 states and 775 transitions. [2020-06-22 00:06:49,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-22 00:06:49,649 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2020-06-22 00:06:49,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 00:06:49,650 INFO L225 Difference]: With dead ends: 501 [2020-06-22 00:06:49,650 INFO L226 Difference]: Without dead ends: 292 [2020-06-22 00:06:49,651 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 00:06:49,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2020-06-22 00:06:49,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 258. [2020-06-22 00:06:49,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2020-06-22 00:06:49,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 403 transitions. [2020-06-22 00:06:49,692 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 403 transitions. Word has length 29 [2020-06-22 00:06:49,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 00:06:49,693 INFO L480 AbstractCegarLoop]: Abstraction has 258 states and 403 transitions. [2020-06-22 00:06:49,693 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-06-22 00:06:49,693 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 403 transitions. [2020-06-22 00:06:49,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-06-22 00:06:49,694 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 00:06:49,694 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 00:06:49,694 INFO L423 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION]=== [2020-06-22 00:06:49,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:06:49,694 INFO L82 PathProgramCache]: Analyzing trace with hash 904121185, now seen corresponding path program 4 times [2020-06-22 00:06:49,694 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:06:49,695 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:06:49,695 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:06:49,695 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:06:49,695 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:06:49,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:06:49,993 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:06:49,993 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2020-06-22 00:06:49,994 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2020-06-22 00:06:50,004 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2020-06-22 00:06:50,041 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-06-22 00:06:50,041 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-06-22 00:06:50,043 INFO L256 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 54 conjunts are in the unsatisfiable core [2020-06-22 00:06:50,044 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 00:06:50,048 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-06-22 00:06:50,048 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:50,052 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:50,052 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:06:50,052 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-06-22 00:06:50,074 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:50,075 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2020-06-22 00:06:50,075 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:50,098 INFO L497 ElimStorePlain]: treesize reduction 14, result has 63.2 percent of original size [2020-06-22 00:06:50,098 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:06:50,098 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:24 [2020-06-22 00:06:50,129 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:06:50,130 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:50,141 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:50,141 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:06:50,141 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:37, output treesize:36 [2020-06-22 00:06:50,217 INFO L340 Elim1Store]: treesize reduction 21, result has 41.7 percent of original size [2020-06-22 00:06:50,218 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 28 [2020-06-22 00:06:50,218 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:50,235 INFO L497 ElimStorePlain]: treesize reduction 8, result has 75.8 percent of original size [2020-06-22 00:06:50,235 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:06:50,235 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:48, output treesize:25 [2020-06-22 00:06:50,267 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:50,267 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 30 [2020-06-22 00:06:50,267 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:50,275 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:50,275 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:06:50,275 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:38, output treesize:31 [2020-06-22 00:06:50,320 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:50,320 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 56 [2020-06-22 00:06:50,321 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:50,348 INFO L497 ElimStorePlain]: treesize reduction 28, result has 56.9 percent of original size [2020-06-22 00:06:50,348 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:06:50,349 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:49, output treesize:40 [2020-06-22 00:06:50,464 INFO L340 Elim1Store]: treesize reduction 44, result has 52.7 percent of original size [2020-06-22 00:06:50,464 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 72 [2020-06-22 00:06:50,466 INFO L427 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:06:50,497 INFO L497 ElimStorePlain]: treesize reduction 32, result has 53.6 percent of original size [2020-06-22 00:06:50,498 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:06:50,498 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:81, output treesize:46 [2020-06-22 00:06:50,541 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:50,541 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 59 [2020-06-22 00:06:50,542 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:50,577 INFO L497 ElimStorePlain]: treesize reduction 26, result has 75.9 percent of original size [2020-06-22 00:06:50,578 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-06-22 00:06:50,578 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:80, output treesize:82 [2020-06-22 00:06:50,625 INFO L388 ElimStorePlain]: Different consts {0=[|v_#memory_$Pointer$.offset_113|], 6=[|v_#memory_$Pointer$.base_135|]} [2020-06-22 00:06:50,629 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:06:50,629 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:50,649 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:50,690 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:50,690 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 129 [2020-06-22 00:06:50,695 INFO L427 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:06:50,747 INFO L497 ElimStorePlain]: treesize reduction 76, result has 45.7 percent of original size [2020-06-22 00:06:50,748 INFO L427 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-06-22 00:06:50,748 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:105, output treesize:68 [2020-06-22 00:06:50,801 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 7 [2020-06-22 00:06:50,801 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:50,814 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:50,815 INFO L427 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-06-22 00:06:50,815 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:104, output treesize:69 [2020-06-22 00:06:50,866 INFO L388 ElimStorePlain]: Different consts {0=[|v_#memory_int_22|], 4=[|v_#memory_$Pointer$.base_136|]} [2020-06-22 00:06:50,869 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-06-22 00:06:50,869 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:50,888 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:50,919 INFO L340 Elim1Store]: treesize reduction 24, result has 58.6 percent of original size [2020-06-22 00:06:50,920 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 73 treesize of output 65 [2020-06-22 00:06:50,921 INFO L427 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:06:50,962 INFO L497 ElimStorePlain]: treesize reduction 14, result has 86.3 percent of original size [2020-06-22 00:06:50,963 INFO L427 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-06-22 00:06:50,963 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:92, output treesize:88 [2020-06-22 00:06:51,029 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:51,030 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 80 [2020-06-22 00:06:51,030 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:51,033 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 40 [2020-06-22 00:06:51,034 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:51,057 INFO L497 ElimStorePlain]: treesize reduction 75, result has 31.2 percent of original size [2020-06-22 00:06:51,058 INFO L427 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:06:51,058 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:133, output treesize:34 [2020-06-22 00:06:51,106 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2020-06-22 00:06:51,107 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:06:51,113 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:06:51,113 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:06:51,113 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:38, output treesize:15 [2020-06-22 00:06:51,153 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:06:51,179 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-06-22 00:06:51,179 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15] total 28 [2020-06-22 00:06:51,179 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-06-22 00:06:51,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-06-22 00:06:51,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=698, Unknown=0, NotChecked=0, Total=812 [2020-06-22 00:06:51,180 INFO L87 Difference]: Start difference. First operand 258 states and 403 transitions. Second operand 29 states. [2020-06-22 00:07:18,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:07:18,256 INFO L93 Difference]: Finished difference Result 367 states and 560 transitions. [2020-06-22 00:07:18,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-06-22 00:07:18,256 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 29 [2020-06-22 00:07:18,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 00:07:18,258 INFO L225 Difference]: With dead ends: 367 [2020-06-22 00:07:18,258 INFO L226 Difference]: Without dead ends: 365 [2020-06-22 00:07:18,258 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 16 SyntacticMatches, 3 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 624 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=420, Invalid=1932, Unknown=0, NotChecked=0, Total=2352 [2020-06-22 00:07:18,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2020-06-22 00:07:18,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 267. [2020-06-22 00:07:18,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2020-06-22 00:07:18,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 416 transitions. [2020-06-22 00:07:18,294 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 416 transitions. Word has length 29 [2020-06-22 00:07:18,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 00:07:18,294 INFO L480 AbstractCegarLoop]: Abstraction has 267 states and 416 transitions. [2020-06-22 00:07:18,294 INFO L481 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-06-22 00:07:18,294 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 416 transitions. [2020-06-22 00:07:18,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-06-22 00:07:18,295 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 00:07:18,295 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 00:07:18,295 INFO L423 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION]=== [2020-06-22 00:07:18,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:07:18,296 INFO L82 PathProgramCache]: Analyzing trace with hash 904121188, now seen corresponding path program 3 times [2020-06-22 00:07:18,296 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:07:18,296 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:07:18,297 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:07:18,297 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 00:07:18,297 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:07:18,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:07:18,719 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:07:18,719 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2020-06-22 00:07:18,719 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2020-06-22 00:07:18,730 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2020-06-22 00:07:18,780 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2020-06-22 00:07:18,781 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-06-22 00:07:18,783 INFO L256 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 76 conjunts are in the unsatisfiable core [2020-06-22 00:07:18,785 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 00:07:18,833 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:07:18,834 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2020-06-22 00:07:18,834 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:07:18,840 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:07:18,841 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:07:18,841 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:17 [2020-06-22 00:07:18,846 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:07:18,846 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:07:18,858 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:07:18,861 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-06-22 00:07:18,861 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:07:18,873 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:07:18,873 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:07:18,873 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:45, output treesize:34 [2020-06-22 00:07:18,887 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2020-06-22 00:07:18,887 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:07:18,900 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:07:18,903 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2020-06-22 00:07:18,903 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:07:18,913 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:07:18,913 INFO L427 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:07:18,913 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:60, output treesize:30 [2020-06-22 00:07:18,920 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:07:18,920 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2020-06-22 00:07:18,920 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:07:18,931 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:07:18,931 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:07:18,931 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:38, output treesize:32 [2020-06-22 00:07:18,970 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2020-06-22 00:07:18,971 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:07:18,990 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:07:18,993 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2020-06-22 00:07:18,994 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:07:19,011 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:07:19,011 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 00:07:19,011 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:67, output treesize:56 [2020-06-22 00:07:19,161 INFO L340 Elim1Store]: treesize reduction 44, result has 52.7 percent of original size [2020-06-22 00:07:19,162 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 84 [2020-06-22 00:07:19,164 INFO L427 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:07:19,228 INFO L497 ElimStorePlain]: treesize reduction 22, result has 79.2 percent of original size [2020-06-22 00:07:19,250 INFO L340 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2020-06-22 00:07:19,251 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 33 [2020-06-22 00:07:19,251 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:07:19,278 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:07:19,280 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:07:19,280 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:112, output treesize:100 [2020-06-22 00:07:19,346 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:07:19,347 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 86 treesize of output 90 [2020-06-22 00:07:19,347 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:07:19,356 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:07:19,356 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 71 [2020-06-22 00:07:19,356 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:07:19,454 INFO L497 ElimStorePlain]: treesize reduction 8, result has 94.4 percent of original size [2020-06-22 00:07:19,462 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 82 [2020-06-22 00:07:19,462 INFO L427 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-06-22 00:07:19,468 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 55 [2020-06-22 00:07:19,468 INFO L427 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-06-22 00:07:19,512 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:07:19,513 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2020-06-22 00:07:19,513 INFO L217 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:154, output treesize:132 [2020-06-22 00:07:19,610 INFO L388 ElimStorePlain]: Different consts {2=[|v_#memory_$Pointer$.base_141|, |v_#memory_$Pointer$.offset_118|], 6=[v_prenex_36, v_prenex_37]} [2020-06-22 00:07:19,620 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 66 [2020-06-22 00:07:19,620 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:07:19,685 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:07:19,694 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 62 [2020-06-22 00:07:19,694 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:07:19,754 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:07:19,787 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:07:19,787 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 102 treesize of output 139 [2020-06-22 00:07:19,788 INFO L427 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-06-22 00:07:19,916 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2020-06-22 00:07:19,917 INFO L497 ElimStorePlain]: treesize reduction 52, result has 77.0 percent of original size [2020-06-22 00:07:19,943 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:07:19,944 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 114 treesize of output 162 [2020-06-22 00:07:19,944 INFO L427 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-06-22 00:07:20,072 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2020-06-22 00:07:20,072 INFO L497 ElimStorePlain]: treesize reduction 46, result has 78.7 percent of original size [2020-06-22 00:07:20,073 INFO L427 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 4 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2020-06-22 00:07:20,073 INFO L217 ElimStorePlain]: Needed 5 recursive calls to eliminate 7 variables, input treesize:178, output treesize:176 [2020-06-22 00:07:20,863 WARN L188 SmtUtils]: Spent 613.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-06-22 00:07:21,036 INFO L388 ElimStorePlain]: Different consts {0=[|v_#memory_int_23|], 50=[|v_#memory_$Pointer$.base_142|, |v_#memory_$Pointer$.offset_119|]} [2020-06-22 00:07:21,093 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 250 treesize of output 236 [2020-06-22 00:07:21,094 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:07:21,143 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 250 treesize of output 236 [2020-06-22 00:07:21,143 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:07:21,185 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 373 treesize of output 353 [2020-06-22 00:07:21,186 INFO L427 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-06-22 00:07:22,118 WARN L188 SmtUtils]: Spent 931.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-06-22 00:07:22,118 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:07:22,177 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:07:22,178 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 236 treesize of output 219 [2020-06-22 00:07:22,190 INFO L427 ElimStorePlain]: Start of recursive call 5: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-06-22 00:07:22,285 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:07:22,286 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 353 treesize of output 314 [2020-06-22 00:07:22,377 INFO L427 ElimStorePlain]: Start of recursive call 6: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-06-22 00:07:22,389 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:07:22,421 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:07:22,422 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 236 treesize of output 205 [2020-06-22 00:07:22,428 INFO L427 ElimStorePlain]: Start of recursive call 7: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-06-22 00:07:23,070 WARN L188 SmtUtils]: Spent 641.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 127 [2020-06-22 00:07:23,071 INFO L497 ElimStorePlain]: treesize reduction 388, result has 46.4 percent of original size [2020-06-22 00:07:23,099 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:07:23,099 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 99 treesize of output 114 [2020-06-22 00:07:23,100 INFO L427 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-06-22 00:07:23,150 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:07:23,151 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 137 treesize of output 199 [2020-06-22 00:07:23,152 INFO L427 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-06-22 00:07:23,173 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:07:23,173 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 99 treesize of output 114 [2020-06-22 00:07:23,174 INFO L427 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2020-06-22 00:07:23,390 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 109 [2020-06-22 00:07:23,390 INFO L497 ElimStorePlain]: treesize reduction 92, result has 72.9 percent of original size [2020-06-22 00:07:23,395 INFO L427 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 3 dim-2 vars, End of recursive call: 6 dim-0 vars, and 3 xjuncts. [2020-06-22 00:07:23,395 INFO L217 ElimStorePlain]: Needed 10 recursive calls to eliminate 7 variables, input treesize:874, output treesize:553 [2020-06-22 00:07:27,973 WARN L188 SmtUtils]: Spent 4.47 s on a formula simplification. DAG size of input: 128 DAG size of output: 86 [2020-06-22 00:07:27,989 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:07:27,990 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 154 treesize of output 154 [2020-06-22 00:07:27,990 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:07:28,002 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:07:28,002 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 113 treesize of output 103 [2020-06-22 00:07:28,002 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:07:28,012 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:07:28,013 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 103 treesize of output 103 [2020-06-22 00:07:28,013 INFO L427 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-06-22 00:07:28,089 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:07:28,091 INFO L427 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 3 xjuncts. [2020-06-22 00:07:28,091 INFO L217 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:371, output treesize:343 [2020-06-22 00:07:29,470 WARN L188 SmtUtils]: Spent 1.30 s on a formula simplification that was a NOOP. DAG size: 87 [2020-06-22 00:07:29,779 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-06-22 00:07:29,785 INFO L388 ElimStorePlain]: Different consts {2=[v_prenex_51, v_prenex_46, v_prenex_49, v_prenex_48], 6=[|#memory_$Pointer$.base|, |#memory_$Pointer$.offset|]} [2020-06-22 00:07:29,791 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 86 [2020-06-22 00:07:29,792 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:07:29,862 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:07:29,875 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:07:29,875 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 104 treesize of output 71 [2020-06-22 00:07:29,876 INFO L427 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:07:30,011 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 95 [2020-06-22 00:07:30,011 INFO L497 ElimStorePlain]: treesize reduction 14, result has 95.3 percent of original size [2020-06-22 00:07:30,017 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:07:30,018 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:07:30,018 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 37 [2020-06-22 00:07:30,019 INFO L427 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-06-22 00:07:30,081 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:07:30,086 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 37 [2020-06-22 00:07:30,086 INFO L427 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-06-22 00:07:30,141 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:07:30,166 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:07:30,167 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 155 treesize of output 117 [2020-06-22 00:07:30,170 INFO L427 ElimStorePlain]: Start of recursive call 6: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-06-22 00:07:30,292 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2020-06-22 00:07:30,292 INFO L497 ElimStorePlain]: treesize reduction 32, result has 81.3 percent of original size [2020-06-22 00:07:30,495 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2020-06-22 00:07:30,496 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: expected NNF at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:232) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive$TermWalker.walk(NonRecursive.java:146) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:191) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder.(ArrayOccurrenceAnalysis.java:177) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis.(ArrayOccurrenceAnalysis.java:73) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:249) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:483) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:397) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:212) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:305) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:456) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-06-22 00:07:30,500 INFO L168 Benchmark]: Toolchain (without parser) took 183653.26 ms. Allocated memory was 649.6 MB in the beginning and 723.5 MB in the end (delta: 73.9 MB). Free memory was 563.1 MB in the beginning and 437.2 MB in the end (delta: 125.9 MB). Peak memory consumption was 199.9 MB. Max. memory is 50.3 GB. [2020-06-22 00:07:30,500 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 649.6 MB. Free memory is still 585.8 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 00:07:30,500 INFO L168 Benchmark]: CACSL2BoogieTranslator took 480.14 ms. Allocated memory was 649.6 MB in the beginning and 654.8 MB in the end (delta: 5.2 MB). Free memory was 562.0 MB in the beginning and 597.0 MB in the end (delta: -35.0 MB). Peak memory consumption was 31.1 MB. Max. memory is 50.3 GB. [2020-06-22 00:07:30,501 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.74 ms. Allocated memory is still 654.8 MB. Free memory was 597.0 MB in the beginning and 593.7 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 50.3 GB. [2020-06-22 00:07:30,501 INFO L168 Benchmark]: Boogie Preprocessor took 32.06 ms. Allocated memory is still 654.8 MB. Free memory was 593.7 MB in the beginning and 591.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. [2020-06-22 00:07:30,501 INFO L168 Benchmark]: RCFGBuilder took 414.18 ms. Allocated memory is still 654.8 MB. Free memory was 591.6 MB in the beginning and 561.8 MB in the end (delta: 29.7 MB). Peak memory consumption was 29.7 MB. Max. memory is 50.3 GB. [2020-06-22 00:07:30,501 INFO L168 Benchmark]: BlockEncodingV2 took 141.59 ms. Allocated memory is still 654.8 MB. Free memory was 561.8 MB in the beginning and 548.9 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 50.3 GB. [2020-06-22 00:07:30,501 INFO L168 Benchmark]: TraceAbstraction took 182531.37 ms. Allocated memory was 654.8 MB in the beginning and 723.5 MB in the end (delta: 68.7 MB). Free memory was 548.9 MB in the beginning and 437.2 MB in the end (delta: 111.7 MB). Peak memory consumption was 180.4 MB. Max. memory is 50.3 GB. [2020-06-22 00:07:30,503 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 62 locations, 73 edges - StatisticsResult: Encoded RCFG 51 locations, 97 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 649.6 MB. Free memory is still 585.8 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 480.14 ms. Allocated memory was 649.6 MB in the beginning and 654.8 MB in the end (delta: 5.2 MB). Free memory was 562.0 MB in the beginning and 597.0 MB in the end (delta: -35.0 MB). Peak memory consumption was 31.1 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 48.74 ms. Allocated memory is still 654.8 MB. Free memory was 597.0 MB in the beginning and 593.7 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 32.06 ms. Allocated memory is still 654.8 MB. Free memory was 593.7 MB in the beginning and 591.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. * RCFGBuilder took 414.18 ms. Allocated memory is still 654.8 MB. Free memory was 591.6 MB in the beginning and 561.8 MB in the end (delta: 29.7 MB). Peak memory consumption was 29.7 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 141.59 ms. Allocated memory is still 654.8 MB. Free memory was 561.8 MB in the beginning and 548.9 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 50.3 GB. * TraceAbstraction took 182531.37 ms. Allocated memory was 654.8 MB in the beginning and 723.5 MB in the end (delta: 68.7 MB). Free memory was 548.9 MB in the beginning and 437.2 MB in the end (delta: 111.7 MB). Peak memory consumption was 180.4 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: expected NNF de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: expected NNF: de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:232) RESULT: Ultimate could not prove your program: Toolchain returned no result. [MP z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (1)] Forcibly destroying the process !SESSION 2020-06-22 00:04:23.537 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-06-22 00:07:30.735 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check