YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 00:55:55,907 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 00:55:55,910 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 00:55:55,922 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 00:55:55,922 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 00:55:55,923 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 00:55:55,924 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 00:55:55,926 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 00:55:55,927 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 00:55:55,928 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 00:55:55,929 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 00:55:55,929 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 00:55:55,930 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 00:55:55,931 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 00:55:55,932 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 00:55:55,933 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 00:55:55,934 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 00:55:55,935 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 00:55:55,937 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 00:55:55,939 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 00:55:55,940 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 00:55:55,941 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 00:55:55,943 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 00:55:55,943 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 00:55:55,944 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 00:55:55,945 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 00:55:55,945 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 00:55:55,946 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 00:55:55,946 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 00:55:55,947 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 00:55:55,948 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 00:55:55,948 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 00:55:55,949 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 00:55:55,949 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 00:55:55,950 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 00:55:55,950 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 00:55:55,950 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 00:55:55,951 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 00:55:55,952 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 00:55:55,952 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-06-22 00:55:55,967 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 00:55:55,968 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 00:55:55,969 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 00:55:55,969 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 00:55:55,969 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 00:55:55,969 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 00:55:55,969 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 00:55:55,970 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 00:55:55,970 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 00:55:55,970 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 00:55:55,970 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 00:55:55,970 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 00:55:55,970 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 00:55:55,971 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 00:55:55,971 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 00:55:55,971 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 00:55:55,971 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 00:55:55,971 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 00:55:55,972 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 00:55:55,972 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 00:55:55,972 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 00:55:55,972 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 00:55:55,972 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 00:55:55,972 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 00:55:55,973 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 00:55:55,973 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 00:55:55,973 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 00:55:55,973 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 00:55:55,973 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 00:55:56,000 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 00:55:56,014 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 00:55:56,018 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 00:55:56,019 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 00:55:56,019 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 00:55:56,020 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 00:55:56,088 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/3c64159609cf419f8fd2e89885fa9768/FLAG5d19cdf28 [2020-06-22 00:55:56,434 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 00:55:56,434 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 00:55:56,441 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/3c64159609cf419f8fd2e89885fa9768/FLAG5d19cdf28 [2020-06-22 00:55:56,836 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/3c64159609cf419f8fd2e89885fa9768 [2020-06-22 00:55:56,850 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 00:55:56,852 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 00:55:56,853 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 00:55:56,853 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 00:55:56,857 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 00:55:56,859 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 12:55:56" (1/1) ... [2020-06-22 00:55:56,862 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f44db0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:55:56, skipping insertion in model container [2020-06-22 00:55:56,862 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 12:55:56" (1/1) ... [2020-06-22 00:55:56,870 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 00:55:56,889 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 00:55:57,050 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 00:55:57,054 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 00:55:57,072 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 00:55:57,147 INFO L195 MainTranslator]: Completed translation [2020-06-22 00:55:57,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:55:57 WrapperNode [2020-06-22 00:55:57,149 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 00:55:57,149 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 00:55:57,150 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 00:55:57,150 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 00:55:57,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:55:57" (1/1) ... [2020-06-22 00:55:57,165 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:55:57" (1/1) ... [2020-06-22 00:55:57,184 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 00:55:57,185 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 00:55:57,185 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 00:55:57,185 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 00:55:57,194 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:55:57" (1/1) ... [2020-06-22 00:55:57,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:55:57" (1/1) ... [2020-06-22 00:55:57,195 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:55:57" (1/1) ... [2020-06-22 00:55:57,195 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:55:57" (1/1) ... [2020-06-22 00:55:57,197 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:55:57" (1/1) ... [2020-06-22 00:55:57,202 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:55:57" (1/1) ... [2020-06-22 00:55:57,203 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:55:57" (1/1) ... [2020-06-22 00:55:57,204 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 00:55:57,204 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 00:55:57,204 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 00:55:57,205 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 00:55:57,205 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:55:57" (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 00:55:57,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 00:55:57,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 00:55:57,408 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 00:55:57,409 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-22 00:55:57,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 12:55:57 BoogieIcfgContainer [2020-06-22 00:55:57,410 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 00:55:57,411 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 00:55:57,411 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 00:55:57,413 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 00:55:57,413 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 12:55:57" (1/1) ... [2020-06-22 00:55:57,428 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 11 edges [2020-06-22 00:55:57,430 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 00:55:57,431 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 00:55:57,431 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 00:55:57,432 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 00:55:57,434 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 00:55:57,435 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 00:55:57,435 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 00:55:57,450 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 00:55:57,457 INFO L200 BlockEncoder]: SBE split 0 edges [2020-06-22 00:55:57,462 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-22 00:55:57,464 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 00:55:57,478 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-06-22 00:55:57,480 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-06-22 00:55:57,482 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 00:55:57,482 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 00:55:57,482 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 00:55:57,482 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 00:55:57,483 INFO L313 BlockEncoder]: Encoded RCFG 4 locations, 6 edges [2020-06-22 00:55:57,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 12:55:57 BasicIcfg [2020-06-22 00:55:57,483 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 00:55:57,484 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 00:55:57,484 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 00:55:57,487 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 00:55:57,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 12:55:56" (1/4) ... [2020-06-22 00:55:57,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31f793a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 12:55:57, skipping insertion in model container [2020-06-22 00:55:57,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:55:57" (2/4) ... [2020-06-22 00:55:57,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31f793a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 12:55:57, skipping insertion in model container [2020-06-22 00:55:57,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 12:55:57" (3/4) ... [2020-06-22 00:55:57,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31f793a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 12:55:57, skipping insertion in model container [2020-06-22 00:55:57,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 12:55:57" (4/4) ... [2020-06-22 00:55:57,493 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 00:55:57,502 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 00:55:57,511 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 00:55:57,527 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 00:55:57,559 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 00:55:57,559 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 00:55:57,559 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 00:55:57,560 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 00:55:57,560 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 00:55:57,560 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 00:55:57,560 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 00:55:57,560 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 00:55:57,560 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 00:55:57,574 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2020-06-22 00:55:57,580 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 00:55:57,582 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-06-22 00:55:57,587 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 00:55:57,587 INFO L448 ceAbstractionStarter]: For program point L25(lines 25 29) no Hoare annotation was computed. [2020-06-22 00:55:57,587 INFO L448 ceAbstractionStarter]: For program point L25-2(lines 13 32) no Hoare annotation was computed. [2020-06-22 00:55:57,587 INFO L448 ceAbstractionStarter]: For program point L19(lines 19 23) no Hoare annotation was computed. [2020-06-22 00:55:57,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 12:55:57 BasicIcfg [2020-06-22 00:55:57,590 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 00:55:57,591 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 00:55:57,591 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 00:55:57,594 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 00:55:57,595 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 00:55:57,595 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 12:55:56" (1/5) ... [2020-06-22 00:55:57,596 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@30183956 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 12:55:57, skipping insertion in model container [2020-06-22 00:55:57,596 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 00:55:57,596 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:55:57" (2/5) ... [2020-06-22 00:55:57,596 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@30183956 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 12:55:57, skipping insertion in model container [2020-06-22 00:55:57,597 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 00:55:57,597 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 12:55:57" (3/5) ... [2020-06-22 00:55:57,597 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@30183956 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 12:55:57, skipping insertion in model container [2020-06-22 00:55:57,597 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 00:55:57,597 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 12:55:57" (4/5) ... [2020-06-22 00:55:57,598 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@30183956 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 12:55:57, skipping insertion in model container [2020-06-22 00:55:57,598 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 00:55:57,598 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 12:55:57" (5/5) ... [2020-06-22 00:55:57,599 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 00:55:57,626 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 00:55:57,626 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 00:55:57,626 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 00:55:57,626 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 00:55:57,627 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 00:55:57,627 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 00:55:57,627 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 00:55:57,627 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 00:55:57,627 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 00:55:57,630 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-06-22 00:55:57,648 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 00:55:57,649 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 00:55:57,649 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 00:55:57,656 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 00:55:57,656 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 00:55:57,656 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 00:55:57,656 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-06-22 00:55:57,657 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 00:55:57,657 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 00:55:57,657 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 00:55:57,657 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 00:55:57,657 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 00:55:57,663 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [30] ULTIMATE.startENTRY-->L19: Formula: (and (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~n~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|) (= v_ULTIMATE.start_main_~b~0_1 |v_ULTIMATE.start_main_#t~nondet3_4|) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_1, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_~t~0=v_ULTIMATE.start_main_~t~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet3_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~b~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~t~0] 5#L19true [40] L19-->L25-2: Formula: (and (> 1 v_ULTIMATE.start_main_~b~0_9) (= v_ULTIMATE.start_main_~t~0_7 (- 1))) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_9} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_9, ULTIMATE.start_main_~t~0=v_ULTIMATE.start_main_~t~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~t~0] 4#L25-2true [2020-06-22 00:55:57,663 INFO L796 eck$LassoCheckResult]: Loop: 4#L25-2true [33] L25-2-->L25: Formula: (<= v_ULTIMATE.start_main_~x~0_11 v_ULTIMATE.start_main_~n~0_7) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[] 6#L25true [38] L25-->L25-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~x~0_7 v_ULTIMATE.start_main_~t~0_4)) (<= 1 v_ULTIMATE.start_main_~b~0_6)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_6, ULTIMATE.start_main_~t~0=v_ULTIMATE.start_main_~t~0_4} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_6, ULTIMATE.start_main_~t~0=v_ULTIMATE.start_main_~t~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 4#L25-2true [2020-06-22 00:55:57,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:55:57,669 INFO L82 PathProgramCache]: Analyzing trace with hash 1931, now seen corresponding path program 1 times [2020-06-22 00:55:57,671 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:55:57,672 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:55:57,732 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:55:57,732 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:55:57,732 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:55:57,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 00:55:57,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 00:55:57,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:55:57,780 INFO L82 PathProgramCache]: Analyzing trace with hash 2022, now seen corresponding path program 1 times [2020-06-22 00:55:57,780 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:55:57,780 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:55:57,781 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:55:57,781 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:55:57,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:55:57,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 00:55:57,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 00:55:57,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:55:57,793 INFO L82 PathProgramCache]: Analyzing trace with hash 1856752, now seen corresponding path program 1 times [2020-06-22 00:55:57,793 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:55:57,793 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:55:57,795 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:55:57,795 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:55:57,795 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:55:57,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:55:57,845 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 00:55:57,847 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 00:55:57,848 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-06-22 00:55:57,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 00:55:57,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 00:55:57,908 INFO L87 Difference]: Start difference. First operand 4 states. Second operand 3 states. [2020-06-22 00:55:57,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:55:57,932 INFO L93 Difference]: Finished difference Result 6 states and 8 transitions. [2020-06-22 00:55:57,934 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-22 00:55:57,938 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 8 transitions. [2020-06-22 00:55:57,938 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-06-22 00:55:57,942 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 6 states and 8 transitions. [2020-06-22 00:55:57,943 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-06-22 00:55:57,944 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2020-06-22 00:55:57,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 8 transitions. [2020-06-22 00:55:57,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 00:55:57,945 INFO L706 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2020-06-22 00:55:57,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 8 transitions. [2020-06-22 00:55:57,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2020-06-22 00:55:57,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-06-22 00:55:57,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2020-06-22 00:55:57,977 INFO L729 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2020-06-22 00:55:57,977 INFO L609 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2020-06-22 00:55:57,977 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 00:55:57,977 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2020-06-22 00:55:57,978 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-06-22 00:55:57,978 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 00:55:57,978 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 00:55:57,978 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 00:55:57,979 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 00:55:57,979 INFO L794 eck$LassoCheckResult]: Stem: 21#ULTIMATE.startENTRY [30] ULTIMATE.startENTRY-->L19: Formula: (and (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~n~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|) (= v_ULTIMATE.start_main_~b~0_1 |v_ULTIMATE.start_main_#t~nondet3_4|) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_1, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_~t~0=v_ULTIMATE.start_main_~t~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet3_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~b~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~t~0] 22#L19 [35] L19-->L25-2: Formula: (and (= v_ULTIMATE.start_main_~t~0_5 1) (<= 1 v_ULTIMATE.start_main_~b~0_7)) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_7} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_7, ULTIMATE.start_main_~t~0=v_ULTIMATE.start_main_~t~0_5} AuxVars[] AssignedVars[ULTIMATE.start_main_~t~0] 23#L25-2 [2020-06-22 00:55:57,979 INFO L796 eck$LassoCheckResult]: Loop: 23#L25-2 [33] L25-2-->L25: Formula: (<= v_ULTIMATE.start_main_~x~0_11 v_ULTIMATE.start_main_~n~0_7) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[] 24#L25 [38] L25-->L25-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~x~0_7 v_ULTIMATE.start_main_~t~0_4)) (<= 1 v_ULTIMATE.start_main_~b~0_6)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_6, ULTIMATE.start_main_~t~0=v_ULTIMATE.start_main_~t~0_4} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_6, ULTIMATE.start_main_~t~0=v_ULTIMATE.start_main_~t~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 23#L25-2 [2020-06-22 00:55:57,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:55:57,980 INFO L82 PathProgramCache]: Analyzing trace with hash 1926, now seen corresponding path program 1 times [2020-06-22 00:55:57,980 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:55:57,980 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:55:57,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:55:57,982 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:55:57,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:55:57,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 00:55:57,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 00:55:57,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:55:57,989 INFO L82 PathProgramCache]: Analyzing trace with hash 2022, now seen corresponding path program 2 times [2020-06-22 00:55:57,989 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:55:57,990 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:55:57,991 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:55:57,991 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:55:57,991 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:55:57,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 00:55:57,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 00:55:57,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:55:57,997 INFO L82 PathProgramCache]: Analyzing trace with hash 1851947, now seen corresponding path program 1 times [2020-06-22 00:55:57,998 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:55:57,998 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:55:57,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:55:57,999 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 00:55:57,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:55:58,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 00:55:58,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 00:55:58,072 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 00:55:58,074 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 00:55:58,074 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 00:55:58,074 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 00:55:58,074 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 00:55:58,074 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 00:55:58,074 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 00:55:58,075 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 00:55:58,075 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Lasso [2020-06-22 00:55:58,075 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 00:55:58,075 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 00:55:58,094 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 00:55:58,101 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 00:55:58,105 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 00:55:58,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 00:55:58,130 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 00:55:58,135 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 00:55:58,138 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 00:55:58,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 00:55:58,144 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 00:55:58,148 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 00:55:58,260 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 00:55:58,260 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 00:55:58,267 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 00:55:58,267 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 00:55:58,280 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 00:55:58,280 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 00:55:58,310 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 00:55:58,310 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 00:55:58,338 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 00:55:58,338 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 00:55:58,343 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 00:55:58,343 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 00:55:58,347 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 00:55:58,347 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 00:55:58,374 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 00:55:58,374 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 00:55:58,406 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 00:55:58,406 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 00:55:58,913 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 00:55:58,916 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 00:55:58,916 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 00:55:58,916 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 00:55:58,917 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 00:55:58,917 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 00:55:58,917 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 00:55:58,917 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 00:55:58,917 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 00:55:58,917 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Lasso [2020-06-22 00:55:58,917 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 00:55:58,917 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 00:55:58,920 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 00:55:58,923 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 00:55:58,926 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 00:55:58,936 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 00:55:58,938 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 00:55:58,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 00:55:58,942 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 00:55:58,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 00:55:58,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 00:55:58,953 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 00:55:59,032 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 00:55:59,038 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 00:55:59,040 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 00:55:59,041 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 00:55:59,041 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 00:55:59,042 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 00:55:59,042 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 00:55:59,042 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 00:55:59,045 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 00:55:59,045 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 00:55:59,048 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 00:55:59,049 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 00:55:59,049 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 00:55:59,049 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 00:55:59,050 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 00:55:59,050 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 00:55:59,052 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 00:55:59,053 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 00:55:59,058 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 00:55:59,059 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 00:55:59,059 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 00:55:59,059 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 00:55:59,060 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 00:55:59,060 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 00:55:59,064 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 00:55:59,064 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 00:55:59,095 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 00:55:59,110 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-06-22 00:55:59,111 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2020-06-22 00:55:59,113 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 00:55:59,116 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-06-22 00:55:59,117 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 00:55:59,117 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~n~0 - 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [1*ULTIMATE.start_main_~t~0 - 1 >= 0] [2020-06-22 00:55:59,122 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2020-06-22 00:55:59,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:55:59,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:55:59,193 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 3 conjunts are in the unsatisfiable core [2020-06-22 00:55:59,195 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 00:55:59,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:55:59,208 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2020-06-22 00:55:59,210 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 00:55:59,241 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 00:55:59,292 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-06-22 00:55:59,295 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-06-22 00:55:59,296 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 6 states and 8 transitions. cyclomatic complexity: 4 Second operand 3 states. [2020-06-22 00:55:59,378 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 6 states and 8 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 12 states and 16 transitions. Complement of second has 6 states. [2020-06-22 00:55:59,378 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-06-22 00:55:59,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 00:55:59,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2020-06-22 00:55:59,382 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 2 letters. Loop has 2 letters. [2020-06-22 00:55:59,384 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 00:55:59,384 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 4 letters. Loop has 2 letters. [2020-06-22 00:55:59,384 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 00:55:59,384 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 2 letters. Loop has 4 letters. [2020-06-22 00:55:59,385 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 00:55:59,389 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 16 transitions. [2020-06-22 00:55:59,390 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-06-22 00:55:59,390 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 10 states and 13 transitions. [2020-06-22 00:55:59,391 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2020-06-22 00:55:59,391 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-06-22 00:55:59,391 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2020-06-22 00:55:59,391 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 00:55:59,391 INFO L706 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2020-06-22 00:55:59,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2020-06-22 00:55:59,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 7. [2020-06-22 00:55:59,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-06-22 00:55:59,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2020-06-22 00:55:59,393 INFO L729 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-06-22 00:55:59,393 INFO L609 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-06-22 00:55:59,393 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 00:55:59,394 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2020-06-22 00:55:59,394 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 00:55:59,394 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 00:55:59,394 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 00:55:59,394 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 00:55:59,395 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 00:55:59,395 INFO L794 eck$LassoCheckResult]: Stem: 86#ULTIMATE.startENTRY [30] ULTIMATE.startENTRY-->L19: Formula: (and (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~n~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|) (= v_ULTIMATE.start_main_~b~0_1 |v_ULTIMATE.start_main_#t~nondet3_4|) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_1, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_~t~0=v_ULTIMATE.start_main_~t~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet3_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~b~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~t~0] 87#L19 [40] L19-->L25-2: Formula: (and (> 1 v_ULTIMATE.start_main_~b~0_9) (= v_ULTIMATE.start_main_~t~0_7 (- 1))) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_9} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_9, ULTIMATE.start_main_~t~0=v_ULTIMATE.start_main_~t~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~t~0] 88#L25-2 [2020-06-22 00:55:59,395 INFO L796 eck$LassoCheckResult]: Loop: 88#L25-2 [33] L25-2-->L25: Formula: (<= v_ULTIMATE.start_main_~x~0_11 v_ULTIMATE.start_main_~n~0_7) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[] 89#L25 [42] L25-->L25-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_8 (+ (* (- 1) v_ULTIMATE.start_main_~t~0_6) v_ULTIMATE.start_main_~x~0_9)) (> 1 v_ULTIMATE.start_main_~b~0_8)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8, ULTIMATE.start_main_~t~0=v_ULTIMATE.start_main_~t~0_6} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8, ULTIMATE.start_main_~t~0=v_ULTIMATE.start_main_~t~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 88#L25-2 [2020-06-22 00:55:59,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:55:59,395 INFO L82 PathProgramCache]: Analyzing trace with hash 1931, now seen corresponding path program 2 times [2020-06-22 00:55:59,396 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:55:59,396 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:55:59,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:55:59,397 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:55:59,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:55:59,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 00:55:59,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 00:55:59,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:55:59,404 INFO L82 PathProgramCache]: Analyzing trace with hash 2026, now seen corresponding path program 1 times [2020-06-22 00:55:59,404 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:55:59,404 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:55:59,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:55:59,406 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 00:55:59,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:55:59,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 00:55:59,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 00:55:59,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:55:59,412 INFO L82 PathProgramCache]: Analyzing trace with hash 1856756, now seen corresponding path program 1 times [2020-06-22 00:55:59,412 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:55:59,412 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:55:59,413 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:55:59,414 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:55:59,414 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:55:59,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 00:55:59,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 00:55:59,464 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 00:55:59,464 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 00:55:59,464 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 00:55:59,464 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 00:55:59,464 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 00:55:59,464 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 00:55:59,464 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 00:55:59,465 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 00:55:59,465 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Lasso [2020-06-22 00:55:59,465 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 00:55:59,465 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 00:55:59,467 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 00:55:59,478 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 00:55:59,481 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 00:55:59,484 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 00:55:59,493 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 00:55:59,496 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 00:55:59,499 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 00:55:59,502 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 00:55:59,504 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 00:55:59,506 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 00:55:59,588 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 00:55:59,589 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 00:55:59,593 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 00:55:59,593 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 00:55:59,623 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 00:55:59,623 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 00:55:59,628 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 00:55:59,628 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 00:55:59,632 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 00:55:59,632 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0=0} Honda state: {ULTIMATE.start_main_~i~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 00:55:59,662 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 00:55:59,662 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 00:55:59,690 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 00:55:59,690 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 00:55:59,697 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 00:55:59,697 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 00:55:59,732 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 00:55:59,733 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 00:56:00,165 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 00:56:00,169 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 00:56:00,169 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 00:56:00,169 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 00:56:00,169 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 00:56:00,169 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 00:56:00,170 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 00:56:00,170 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 00:56:00,170 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 00:56:00,170 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Lasso [2020-06-22 00:56:00,170 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 00:56:00,170 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 00:56:00,172 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 00:56:00,175 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 00:56:00,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 00:56:00,180 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 00:56:00,182 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 00:56:00,190 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 00:56:00,193 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 00:56:00,195 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 00:56:00,198 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 00:56:00,199 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 00:56:00,278 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 00:56:00,279 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 00:56:00,279 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 00:56:00,280 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 00:56:00,280 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 00:56:00,280 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 00:56:00,281 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 00:56:00,281 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 00:56:00,281 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 00:56:00,281 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 00:56:00,282 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 00:56:00,283 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 00:56:00,283 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 00:56:00,283 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 00:56:00,283 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 00:56:00,283 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 00:56:00,285 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 00:56:00,285 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 00:56:00,288 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 00:56:00,289 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 00:56:00,289 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 00:56:00,289 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 00:56:00,289 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 00:56:00,289 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 00:56:00,292 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 00:56:00,292 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 00:56:00,296 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 00:56:00,297 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 00:56:00,297 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 00:56:00,297 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 00:56:00,297 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 00:56:00,297 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 00:56:00,298 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 00:56:00,298 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 00:56:00,298 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 00:56:00,299 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 00:56:00,299 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 00:56:00,300 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 00:56:00,300 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 00:56:00,300 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 00:56:00,300 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 00:56:00,302 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 00:56:00,303 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 00:56:00,316 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 00:56:00,325 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-06-22 00:56:00,325 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2020-06-22 00:56:00,325 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 00:56:00,327 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-06-22 00:56:00,329 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 00:56:00,329 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~n~0) = -2*ULTIMATE.start_main_~x~0 + 2*ULTIMATE.start_main_~n~0 + 1 Supporting invariants [-1*ULTIMATE.start_main_~t~0 - 1 >= 0] [2020-06-22 00:56:00,331 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2020-06-22 00:56:00,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:56:00,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:56:00,367 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 3 conjunts are in the unsatisfiable core [2020-06-22 00:56:00,368 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 00:56:00,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:56:00,372 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2020-06-22 00:56:00,373 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 00:56:00,396 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 00:56:00,422 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-06-22 00:56:00,422 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-06-22 00:56:00,423 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 3 states. [2020-06-22 00:56:00,448 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 11 states and 15 transitions. Complement of second has 4 states. [2020-06-22 00:56:00,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-06-22 00:56:00,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 00:56:00,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2020-06-22 00:56:00,449 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 2 letters. Loop has 2 letters. [2020-06-22 00:56:00,450 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 00:56:00,450 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 4 letters. Loop has 2 letters. [2020-06-22 00:56:00,450 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 00:56:00,450 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 2 letters. Loop has 4 letters. [2020-06-22 00:56:00,450 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 00:56:00,452 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 15 transitions. [2020-06-22 00:56:00,453 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 00:56:00,453 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 7 states and 9 transitions. [2020-06-22 00:56:00,453 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-06-22 00:56:00,453 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-06-22 00:56:00,454 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 9 transitions. [2020-06-22 00:56:00,454 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 00:56:00,454 INFO L706 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2020-06-22 00:56:00,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 9 transitions. [2020-06-22 00:56:00,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2020-06-22 00:56:00,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-06-22 00:56:00,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2020-06-22 00:56:00,455 INFO L729 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2020-06-22 00:56:00,455 INFO L609 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2020-06-22 00:56:00,455 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2020-06-22 00:56:00,455 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2020-06-22 00:56:00,456 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 00:56:00,456 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 00:56:00,456 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 00:56:00,456 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-06-22 00:56:00,456 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 00:56:00,457 INFO L794 eck$LassoCheckResult]: Stem: 147#ULTIMATE.startENTRY [30] ULTIMATE.startENTRY-->L19: Formula: (and (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~n~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|) (= v_ULTIMATE.start_main_~b~0_1 |v_ULTIMATE.start_main_#t~nondet3_4|) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_1, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_~t~0=v_ULTIMATE.start_main_~t~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet3_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~b~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~t~0] 148#L19 [35] L19-->L25-2: Formula: (and (= v_ULTIMATE.start_main_~t~0_5 1) (<= 1 v_ULTIMATE.start_main_~b~0_7)) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_7} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_7, ULTIMATE.start_main_~t~0=v_ULTIMATE.start_main_~t~0_5} AuxVars[] AssignedVars[ULTIMATE.start_main_~t~0] 153#L25-2 [33] L25-2-->L25: Formula: (<= v_ULTIMATE.start_main_~x~0_11 v_ULTIMATE.start_main_~n~0_7) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[] 150#L25 [2020-06-22 00:56:00,457 INFO L796 eck$LassoCheckResult]: Loop: 150#L25 [42] L25-->L25-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_8 (+ (* (- 1) v_ULTIMATE.start_main_~t~0_6) v_ULTIMATE.start_main_~x~0_9)) (> 1 v_ULTIMATE.start_main_~b~0_8)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8, ULTIMATE.start_main_~t~0=v_ULTIMATE.start_main_~t~0_6} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8, ULTIMATE.start_main_~t~0=v_ULTIMATE.start_main_~t~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 149#L25-2 [33] L25-2-->L25: Formula: (<= v_ULTIMATE.start_main_~x~0_11 v_ULTIMATE.start_main_~n~0_7) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[] 150#L25 [2020-06-22 00:56:00,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:56:00,457 INFO L82 PathProgramCache]: Analyzing trace with hash 59739, now seen corresponding path program 1 times [2020-06-22 00:56:00,457 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:56:00,457 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:56:00,459 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:56:00,459 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:56:00,459 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:56:00,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 00:56:00,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 00:56:00,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:56:00,466 INFO L82 PathProgramCache]: Analyzing trace with hash 2296, now seen corresponding path program 2 times [2020-06-22 00:56:00,466 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:56:00,466 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:56:00,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:56:00,467 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:56:00,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:56:00,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 00:56:00,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 00:56:00,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:56:00,471 INFO L82 PathProgramCache]: Analyzing trace with hash 57410514, now seen corresponding path program 1 times [2020-06-22 00:56:00,471 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:56:00,471 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:56:00,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:56:00,472 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 00:56:00,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:56:00,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:56:00,483 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 00:56:00,483 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 00:56:00,483 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-06-22 00:56:00,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 00:56:00,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 00:56:00,524 INFO L87 Difference]: Start difference. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 3 states. [2020-06-22 00:56:00,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:56:00,527 INFO L93 Difference]: Finished difference Result 6 states and 7 transitions. [2020-06-22 00:56:00,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-22 00:56:00,528 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 7 transitions. [2020-06-22 00:56:00,529 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 00:56:00,529 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 0 states and 0 transitions. [2020-06-22 00:56:00,529 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 00:56:00,529 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 00:56:00,529 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 00:56:00,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 00:56:00,530 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 00:56:00,530 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 00:56:00,530 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 00:56:00,530 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2020-06-22 00:56:00,530 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 00:56:00,530 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 00:56:00,530 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 00:56:00,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 12:56:00 BasicIcfg [2020-06-22 00:56:00,536 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 00:56:00,537 INFO L168 Benchmark]: Toolchain (without parser) took 3686.06 ms. Allocated memory was 649.6 MB in the beginning and 759.2 MB in the end (delta: 109.6 MB). Free memory was 565.2 MB in the beginning and 713.8 MB in the end (delta: -148.6 MB). There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 00:56:00,538 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 649.6 MB. Free memory is still 585.6 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 00:56:00,539 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.74 ms. Allocated memory was 649.6 MB in the beginning and 691.5 MB in the end (delta: 41.9 MB). Free memory was 565.2 MB in the beginning and 658.9 MB in the end (delta: -93.8 MB). Peak memory consumption was 30.4 MB. Max. memory is 50.3 GB. [2020-06-22 00:56:00,539 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.96 ms. Allocated memory is still 691.5 MB. Free memory was 658.9 MB in the beginning and 655.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. [2020-06-22 00:56:00,540 INFO L168 Benchmark]: Boogie Preprocessor took 19.24 ms. Allocated memory is still 691.5 MB. Free memory was 655.8 MB in the beginning and 654.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-06-22 00:56:00,540 INFO L168 Benchmark]: RCFGBuilder took 205.92 ms. Allocated memory is still 691.5 MB. Free memory was 654.5 MB in the beginning and 641.6 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 50.3 GB. [2020-06-22 00:56:00,541 INFO L168 Benchmark]: BlockEncodingV2 took 72.83 ms. Allocated memory is still 691.5 MB. Free memory was 641.6 MB in the beginning and 635.1 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 50.3 GB. [2020-06-22 00:56:00,542 INFO L168 Benchmark]: TraceAbstraction took 105.98 ms. Allocated memory is still 691.5 MB. Free memory was 635.1 MB in the beginning and 628.4 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 50.3 GB. [2020-06-22 00:56:00,542 INFO L168 Benchmark]: BuchiAutomizer took 2945.62 ms. Allocated memory was 691.5 MB in the beginning and 759.2 MB in the end (delta: 67.6 MB). Free memory was 627.0 MB in the beginning and 713.8 MB in the end (delta: -86.7 MB). There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 00:56:00,546 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 8 locations, 11 edges - StatisticsResult: Encoded RCFG 4 locations, 6 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 649.6 MB. Free memory is still 585.6 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 295.74 ms. Allocated memory was 649.6 MB in the beginning and 691.5 MB in the end (delta: 41.9 MB). Free memory was 565.2 MB in the beginning and 658.9 MB in the end (delta: -93.8 MB). Peak memory consumption was 30.4 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 34.96 ms. Allocated memory is still 691.5 MB. Free memory was 658.9 MB in the beginning and 655.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.24 ms. Allocated memory is still 691.5 MB. Free memory was 655.8 MB in the beginning and 654.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 205.92 ms. Allocated memory is still 691.5 MB. Free memory was 654.5 MB in the beginning and 641.6 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 72.83 ms. Allocated memory is still 691.5 MB. Free memory was 641.6 MB in the beginning and 635.1 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 50.3 GB. * TraceAbstraction took 105.98 ms. Allocated memory is still 691.5 MB. Free memory was 635.1 MB in the beginning and 628.4 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 2945.62 ms. Allocated memory was 691.5 MB in the beginning and 759.2 MB in the end (delta: 67.6 MB). Free memory was 627.0 MB in the beginning and 713.8 MB in the end (delta: -86.7 MB). There was no memory consumed. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 4 locations, 0 error locations. SAFE Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (2 trivial, 0 deterministic, 2 nondeterministic). One nondeterministic module has affine ranking function 2 * n + -2 * x + 1 and consists of 4 locations. One nondeterministic module has affine ranking function -2 * x + 2 * n + 1 and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.9s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 2.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 16 SDtfs, 19 SDslu, 3 SDs, 0 SdLazy, 27 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax160 hnf100 lsp40 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq184 hnf95 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 9ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-22 00:55:53.416 ----------------------------------------------- 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 00:56:00.778 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check