Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 01:08:25,669 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 01:08:25,671 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 01:08:25,682 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 01:08:25,683 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 01:08:25,684 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 01:08:25,685 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 01:08:25,686 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 01:08:25,688 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 01:08:25,689 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 01:08:25,690 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 01:08:25,690 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 01:08:25,691 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 01:08:25,692 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 01:08:25,693 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 01:08:25,693 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 01:08:25,694 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 01:08:25,696 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 01:08:25,698 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 01:08:25,699 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 01:08:25,700 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 01:08:25,701 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 01:08:25,703 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 01:08:25,703 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 01:08:25,703 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 01:08:25,704 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 01:08:25,705 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 01:08:25,705 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 01:08:25,706 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 01:08:25,706 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 01:08:25,707 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 01:08:25,708 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 01:08:25,708 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 01:08:25,709 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 01:08:25,709 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 01:08:25,709 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 01:08:25,710 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 01:08:25,710 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 01:08:25,711 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 01:08:25,711 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-06-22 01:08:25,725 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 01:08:25,726 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 01:08:25,727 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 01:08:25,727 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 01:08:25,727 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 01:08:25,728 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 01:08:25,728 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 01:08:25,728 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 01:08:25,728 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 01:08:25,728 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 01:08:25,729 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 01:08:25,729 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 01:08:25,729 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 01:08:25,729 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 01:08:25,729 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:08:25,729 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 01:08:25,730 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 01:08:25,730 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 01:08:25,730 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 01:08:25,730 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 01:08:25,730 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 01:08:25,730 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 01:08:25,731 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 01:08:25,731 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 01:08:25,731 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 01:08:25,731 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 01:08:25,731 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 01:08:25,732 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 01:08:25,732 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 01:08:25,757 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 01:08:25,770 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 01:08:25,774 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 01:08:25,775 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 01:08:25,775 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 01:08:25,776 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 01:08:25,843 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/e125eb1420a54c65aa855e5db4141ab1/FLAG4c82a6c27 [2020-06-22 01:08:26,241 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 01:08:26,242 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 01:08:26,255 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/e125eb1420a54c65aa855e5db4141ab1/FLAG4c82a6c27 [2020-06-22 01:08:26,594 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/e125eb1420a54c65aa855e5db4141ab1 [2020-06-22 01:08:26,605 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 01:08:26,607 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 01:08:26,608 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 01:08:26,608 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 01:08:26,612 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 01:08:26,613 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 01:08:26" (1/1) ... [2020-06-22 01:08:26,616 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28960c64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:08:26, skipping insertion in model container [2020-06-22 01:08:26,616 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 01:08:26" (1/1) ... [2020-06-22 01:08:26,624 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 01:08:26,665 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 01:08:27,001 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 01:08:27,011 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 01:08:27,059 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 01:08:27,100 INFO L195 MainTranslator]: Completed translation [2020-06-22 01:08:27,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:08:27 WrapperNode [2020-06-22 01:08:27,101 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 01:08:27,102 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 01:08:27,102 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 01:08:27,102 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 01:08:27,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:08:27" (1/1) ... [2020-06-22 01:08:27,127 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:08:27" (1/1) ... [2020-06-22 01:08:27,154 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 01:08:27,155 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 01:08:27,155 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 01:08:27,155 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 01:08:27,165 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:08:27" (1/1) ... [2020-06-22 01:08:27,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:08:27" (1/1) ... [2020-06-22 01:08:27,169 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:08:27" (1/1) ... [2020-06-22 01:08:27,169 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:08:27" (1/1) ... [2020-06-22 01:08:27,178 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:08:27" (1/1) ... [2020-06-22 01:08:27,184 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:08:27" (1/1) ... [2020-06-22 01:08:27,185 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:08:27" (1/1) ... [2020-06-22 01:08:27,188 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 01:08:27,188 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 01:08:27,188 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 01:08:27,189 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 01:08:27,190 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:08:27" (1/1) ... No working directory specified, using /export/starexec/sandbox2/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 01:08:27,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-06-22 01:08:27,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-06-22 01:08:27,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-06-22 01:08:27,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-06-22 01:08:27,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 01:08:27,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 01:08:27,755 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 01:08:27,756 INFO L286 CfgBuilder]: Removed 7 assue(true) statements. [2020-06-22 01:08:27,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:08:27 BoogieIcfgContainer [2020-06-22 01:08:27,757 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 01:08:27,758 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 01:08:27,758 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 01:08:27,761 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 01:08:27,761 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:08:27" (1/1) ... [2020-06-22 01:08:27,783 INFO L313 BlockEncoder]: Initial Icfg 119 locations, 130 edges [2020-06-22 01:08:27,785 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 01:08:27,786 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 01:08:27,786 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 01:08:27,787 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 01:08:27,788 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 01:08:27,789 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 01:08:27,790 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 01:08:27,827 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 01:08:27,879 INFO L200 BlockEncoder]: SBE split 73 edges [2020-06-22 01:08:27,885 INFO L70 emoveInfeasibleEdges]: Removed 3 edges and 0 locations because of local infeasibility [2020-06-22 01:08:27,887 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 01:08:27,937 INFO L100 BaseMinimizeStates]: Removed 26 edges and 13 locations by large block encoding [2020-06-22 01:08:27,939 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-06-22 01:08:27,941 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 01:08:27,942 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 01:08:27,942 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 01:08:27,943 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 01:08:27,944 INFO L313 BlockEncoder]: Encoded RCFG 105 locations, 216 edges [2020-06-22 01:08:27,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 01:08:27 BasicIcfg [2020-06-22 01:08:27,944 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 01:08:27,945 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 01:08:27,945 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 01:08:27,948 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 01:08:27,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 01:08:26" (1/4) ... [2020-06-22 01:08:27,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11dcaac6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 01:08:27, skipping insertion in model container [2020-06-22 01:08:27,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:08:27" (2/4) ... [2020-06-22 01:08:27,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11dcaac6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 01:08:27, skipping insertion in model container [2020-06-22 01:08:27,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:08:27" (3/4) ... [2020-06-22 01:08:27,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11dcaac6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:08:27, skipping insertion in model container [2020-06-22 01:08:27,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 01:08:27" (4/4) ... [2020-06-22 01:08:27,952 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 01:08:27,962 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 01:08:27,970 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 60 error locations. [2020-06-22 01:08:27,987 INFO L257 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2020-06-22 01:08:28,016 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 01:08:28,017 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 01:08:28,017 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 01:08:28,017 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 01:08:28,018 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 01:08:28,018 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 01:08:28,018 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 01:08:28,018 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 01:08:28,018 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 01:08:28,034 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states. [2020-06-22 01:08:28,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-06-22 01:08:28,040 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 01:08:28,041 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-06-22 01:08:28,041 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION]=== [2020-06-22 01:08:28,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:28,047 INFO L82 PathProgramCache]: Analyzing trace with hash 316991, now seen corresponding path program 1 times [2020-06-22 01:08:28,049 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:08:28,049 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:08:28,101 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:28,102 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:08:28,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:28,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:08:28,201 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 01:08:28,204 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 01:08:28,204 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-06-22 01:08:28,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-06-22 01:08:28,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 01:08:28,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 01:08:28,225 INFO L87 Difference]: Start difference. First operand 105 states. Second operand 3 states. [2020-06-22 01:08:28,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 01:08:28,675 INFO L93 Difference]: Finished difference Result 112 states and 230 transitions. [2020-06-22 01:08:28,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-22 01:08:28,678 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-06-22 01:08:28,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 01:08:28,694 INFO L225 Difference]: With dead ends: 112 [2020-06-22 01:08:28,694 INFO L226 Difference]: Without dead ends: 110 [2020-06-22 01:08:28,698 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 01:08:28,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-06-22 01:08:28,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 103. [2020-06-22 01:08:28,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-06-22 01:08:28,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 212 transitions. [2020-06-22 01:08:28,749 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 212 transitions. Word has length 3 [2020-06-22 01:08:28,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 01:08:28,750 INFO L480 AbstractCegarLoop]: Abstraction has 103 states and 212 transitions. [2020-06-22 01:08:28,750 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-06-22 01:08:28,750 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 212 transitions. [2020-06-22 01:08:28,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-06-22 01:08:28,750 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 01:08:28,750 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-06-22 01:08:28,751 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION]=== [2020-06-22 01:08:28,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:28,751 INFO L82 PathProgramCache]: Analyzing trace with hash 316993, now seen corresponding path program 1 times [2020-06-22 01:08:28,751 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:08:28,752 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:08:28,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:28,753 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:08:28,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:28,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:08:28,782 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 01:08:28,783 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 01:08:28,783 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-06-22 01:08:28,784 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-06-22 01:08:28,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 01:08:28,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 01:08:28,785 INFO L87 Difference]: Start difference. First operand 103 states and 212 transitions. Second operand 3 states. [2020-06-22 01:08:29,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 01:08:29,103 INFO L93 Difference]: Finished difference Result 103 states and 212 transitions. [2020-06-22 01:08:29,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-22 01:08:29,104 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-06-22 01:08:29,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 01:08:29,105 INFO L225 Difference]: With dead ends: 103 [2020-06-22 01:08:29,105 INFO L226 Difference]: Without dead ends: 101 [2020-06-22 01:08:29,106 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 01:08:29,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-06-22 01:08:29,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2020-06-22 01:08:29,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-06-22 01:08:29,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 208 transitions. [2020-06-22 01:08:29,117 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 208 transitions. Word has length 3 [2020-06-22 01:08:29,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 01:08:29,118 INFO L480 AbstractCegarLoop]: Abstraction has 101 states and 208 transitions. [2020-06-22 01:08:29,118 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-06-22 01:08:29,118 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 208 transitions. [2020-06-22 01:08:29,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-06-22 01:08:29,118 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 01:08:29,118 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-06-22 01:08:29,119 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION]=== [2020-06-22 01:08:29,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:29,119 INFO L82 PathProgramCache]: Analyzing trace with hash 848169599, now seen corresponding path program 1 times [2020-06-22 01:08:29,119 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:08:29,119 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:08:29,121 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:29,121 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:08:29,121 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:29,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:08:29,156 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 01:08:29,157 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 01:08:29,157 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-06-22 01:08:29,157 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-06-22 01:08:29,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-06-22 01:08:29,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-06-22 01:08:29,158 INFO L87 Difference]: Start difference. First operand 101 states and 208 transitions. Second operand 4 states. [2020-06-22 01:08:29,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 01:08:29,532 INFO L93 Difference]: Finished difference Result 113 states and 232 transitions. [2020-06-22 01:08:29,533 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-06-22 01:08:29,533 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-06-22 01:08:29,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 01:08:29,534 INFO L225 Difference]: With dead ends: 113 [2020-06-22 01:08:29,535 INFO L226 Difference]: Without dead ends: 98 [2020-06-22 01:08:29,535 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-06-22 01:08:29,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-06-22 01:08:29,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 88. [2020-06-22 01:08:29,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-06-22 01:08:29,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 183 transitions. [2020-06-22 01:08:29,545 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 183 transitions. Word has length 6 [2020-06-22 01:08:29,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 01:08:29,545 INFO L480 AbstractCegarLoop]: Abstraction has 88 states and 183 transitions. [2020-06-22 01:08:29,545 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-06-22 01:08:29,545 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 183 transitions. [2020-06-22 01:08:29,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-06-22 01:08:29,546 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 01:08:29,546 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-06-22 01:08:29,546 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION]=== [2020-06-22 01:08:29,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:29,546 INFO L82 PathProgramCache]: Analyzing trace with hash 848169601, now seen corresponding path program 1 times [2020-06-22 01:08:29,547 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:08:29,547 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:08:29,548 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:29,548 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:08:29,548 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:29,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:08:29,581 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 01:08:29,581 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 01:08:29,581 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-06-22 01:08:29,581 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-06-22 01:08:29,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-06-22 01:08:29,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-06-22 01:08:29,582 INFO L87 Difference]: Start difference. First operand 88 states and 183 transitions. Second operand 4 states. [2020-06-22 01:08:29,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 01:08:29,905 INFO L93 Difference]: Finished difference Result 151 states and 290 transitions. [2020-06-22 01:08:29,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-06-22 01:08:29,906 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-06-22 01:08:29,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 01:08:29,907 INFO L225 Difference]: With dead ends: 151 [2020-06-22 01:08:29,907 INFO L226 Difference]: Without dead ends: 139 [2020-06-22 01:08:29,908 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-06-22 01:08:29,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-06-22 01:08:29,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 109. [2020-06-22 01:08:29,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-06-22 01:08:29,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 254 transitions. [2020-06-22 01:08:29,917 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 254 transitions. Word has length 6 [2020-06-22 01:08:29,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 01:08:29,918 INFO L480 AbstractCegarLoop]: Abstraction has 109 states and 254 transitions. [2020-06-22 01:08:29,918 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-06-22 01:08:29,918 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 254 transitions. [2020-06-22 01:08:29,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-06-22 01:08:29,918 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 01:08:29,919 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-06-22 01:08:29,919 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION]=== [2020-06-22 01:08:29,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:29,919 INFO L82 PathProgramCache]: Analyzing trace with hash 848169602, now seen corresponding path program 1 times [2020-06-22 01:08:29,919 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:08:29,919 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:08:29,920 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:29,921 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:08:29,921 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:29,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:08:29,960 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 01:08:29,960 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 01:08:29,960 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-06-22 01:08:29,961 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-06-22 01:08:29,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-06-22 01:08:29,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-06-22 01:08:29,961 INFO L87 Difference]: Start difference. First operand 109 states and 254 transitions. Second operand 4 states. [2020-06-22 01:08:30,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 01:08:30,384 INFO L93 Difference]: Finished difference Result 132 states and 264 transitions. [2020-06-22 01:08:30,385 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-06-22 01:08:30,385 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-06-22 01:08:30,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 01:08:30,386 INFO L225 Difference]: With dead ends: 132 [2020-06-22 01:08:30,386 INFO L226 Difference]: Without dead ends: 120 [2020-06-22 01:08:30,387 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-06-22 01:08:30,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-06-22 01:08:30,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 109. [2020-06-22 01:08:30,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-06-22 01:08:30,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 242 transitions. [2020-06-22 01:08:30,396 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 242 transitions. Word has length 6 [2020-06-22 01:08:30,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 01:08:30,398 INFO L480 AbstractCegarLoop]: Abstraction has 109 states and 242 transitions. [2020-06-22 01:08:30,398 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-06-22 01:08:30,398 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 242 transitions. [2020-06-22 01:08:30,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-06-22 01:08:30,398 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 01:08:30,398 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-06-22 01:08:30,399 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION]=== [2020-06-22 01:08:30,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:30,399 INFO L82 PathProgramCache]: Analyzing trace with hash 523340737, now seen corresponding path program 1 times [2020-06-22 01:08:30,399 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:08:30,399 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:08:30,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:30,400 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:08:30,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:30,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:08:30,425 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 01:08:30,425 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 01:08:30,426 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-06-22 01:08:30,426 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-06-22 01:08:30,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 01:08:30,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 01:08:30,427 INFO L87 Difference]: Start difference. First operand 109 states and 242 transitions. Second operand 3 states. [2020-06-22 01:08:30,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 01:08:30,726 INFO L93 Difference]: Finished difference Result 125 states and 277 transitions. [2020-06-22 01:08:30,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-22 01:08:30,727 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-06-22 01:08:30,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 01:08:30,728 INFO L225 Difference]: With dead ends: 125 [2020-06-22 01:08:30,728 INFO L226 Difference]: Without dead ends: 122 [2020-06-22 01:08:30,729 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 01:08:30,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2020-06-22 01:08:30,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 109. [2020-06-22 01:08:30,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-06-22 01:08:30,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 245 transitions. [2020-06-22 01:08:30,737 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 245 transitions. Word has length 7 [2020-06-22 01:08:30,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 01:08:30,737 INFO L480 AbstractCegarLoop]: Abstraction has 109 states and 245 transitions. [2020-06-22 01:08:30,738 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-06-22 01:08:30,738 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 245 transitions. [2020-06-22 01:08:30,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-06-22 01:08:30,738 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 01:08:30,738 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-06-22 01:08:30,738 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION]=== [2020-06-22 01:08:30,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:30,739 INFO L82 PathProgramCache]: Analyzing trace with hash 523340739, now seen corresponding path program 1 times [2020-06-22 01:08:30,739 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:08:30,739 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:08:30,740 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:30,740 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:08:30,740 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:30,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:08:30,776 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 01:08:30,776 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 01:08:30,776 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-06-22 01:08:30,777 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-06-22 01:08:30,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 01:08:30,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 01:08:30,777 INFO L87 Difference]: Start difference. First operand 109 states and 245 transitions. Second operand 3 states. [2020-06-22 01:08:31,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 01:08:31,052 INFO L93 Difference]: Finished difference Result 141 states and 315 transitions. [2020-06-22 01:08:31,052 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-22 01:08:31,053 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-06-22 01:08:31,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 01:08:31,054 INFO L225 Difference]: With dead ends: 141 [2020-06-22 01:08:31,054 INFO L226 Difference]: Without dead ends: 107 [2020-06-22 01:08:31,055 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 01:08:31,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-06-22 01:08:31,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2020-06-22 01:08:31,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-06-22 01:08:31,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 237 transitions. [2020-06-22 01:08:31,062 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 237 transitions. Word has length 7 [2020-06-22 01:08:31,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 01:08:31,062 INFO L480 AbstractCegarLoop]: Abstraction has 107 states and 237 transitions. [2020-06-22 01:08:31,062 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-06-22 01:08:31,062 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 237 transitions. [2020-06-22 01:08:31,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-06-22 01:08:31,063 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 01:08:31,063 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 01:08:31,063 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION]=== [2020-06-22 01:08:31,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:31,064 INFO L82 PathProgramCache]: Analyzing trace with hash -902900310, now seen corresponding path program 1 times [2020-06-22 01:08:31,064 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:08:31,064 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:08:31,065 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:31,065 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:08:31,065 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:31,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:08:31,109 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 01:08:31,110 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 01:08:31,110 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-06-22 01:08:31,110 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-06-22 01:08:31,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-06-22 01:08:31,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-06-22 01:08:31,111 INFO L87 Difference]: Start difference. First operand 107 states and 237 transitions. Second operand 4 states. [2020-06-22 01:08:31,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 01:08:31,478 INFO L93 Difference]: Finished difference Result 120 states and 268 transitions. [2020-06-22 01:08:31,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-06-22 01:08:31,478 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-06-22 01:08:31,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 01:08:31,479 INFO L225 Difference]: With dead ends: 120 [2020-06-22 01:08:31,480 INFO L226 Difference]: Without dead ends: 115 [2020-06-22 01:08:31,480 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-06-22 01:08:31,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-06-22 01:08:31,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 104. [2020-06-22 01:08:31,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-06-22 01:08:31,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 232 transitions. [2020-06-22 01:08:31,486 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 232 transitions. Word has length 11 [2020-06-22 01:08:31,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 01:08:31,487 INFO L480 AbstractCegarLoop]: Abstraction has 104 states and 232 transitions. [2020-06-22 01:08:31,487 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-06-22 01:08:31,487 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 232 transitions. [2020-06-22 01:08:31,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-06-22 01:08:31,488 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 01:08:31,488 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 01:08:31,488 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION]=== [2020-06-22 01:08:31,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:31,488 INFO L82 PathProgramCache]: Analyzing trace with hash -902900308, now seen corresponding path program 1 times [2020-06-22 01:08:31,488 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:08:31,489 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:08:31,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:31,490 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:08:31,490 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:31,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:08:31,533 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 01:08:31,533 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 01:08:31,533 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-06-22 01:08:31,534 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-06-22 01:08:31,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-06-22 01:08:31,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-06-22 01:08:31,535 INFO L87 Difference]: Start difference. First operand 104 states and 232 transitions. Second operand 4 states. [2020-06-22 01:08:31,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 01:08:31,926 INFO L93 Difference]: Finished difference Result 149 states and 358 transitions. [2020-06-22 01:08:31,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-06-22 01:08:31,927 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-06-22 01:08:31,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 01:08:31,928 INFO L225 Difference]: With dead ends: 149 [2020-06-22 01:08:31,928 INFO L226 Difference]: Without dead ends: 122 [2020-06-22 01:08:31,929 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-06-22 01:08:31,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2020-06-22 01:08:31,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 106. [2020-06-22 01:08:31,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-06-22 01:08:31,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 243 transitions. [2020-06-22 01:08:31,934 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 243 transitions. Word has length 11 [2020-06-22 01:08:31,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 01:08:31,935 INFO L480 AbstractCegarLoop]: Abstraction has 106 states and 243 transitions. [2020-06-22 01:08:31,935 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-06-22 01:08:31,935 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 243 transitions. [2020-06-22 01:08:31,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-06-22 01:08:31,936 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 01:08:31,936 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 01:08:31,936 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION]=== [2020-06-22 01:08:31,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:31,936 INFO L82 PathProgramCache]: Analyzing trace with hash 2074864506, now seen corresponding path program 1 times [2020-06-22 01:08:31,937 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:08:31,937 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:08:31,938 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:31,938 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:08:31,938 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:31,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:08:32,098 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 01:08:32,098 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 01:08:32,098 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-06-22 01:08:32,099 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-06-22 01:08:32,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-06-22 01:08:32,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-06-22 01:08:32,099 INFO L87 Difference]: Start difference. First operand 106 states and 243 transitions. Second operand 9 states. [2020-06-22 01:08:33,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 01:08:33,043 INFO L93 Difference]: Finished difference Result 116 states and 275 transitions. [2020-06-22 01:08:33,043 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-06-22 01:08:33,044 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 12 [2020-06-22 01:08:33,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 01:08:33,045 INFO L225 Difference]: With dead ends: 116 [2020-06-22 01:08:33,045 INFO L226 Difference]: Without dead ends: 115 [2020-06-22 01:08:33,046 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2020-06-22 01:08:33,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-06-22 01:08:33,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 107. [2020-06-22 01:08:33,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-06-22 01:08:33,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 246 transitions. [2020-06-22 01:08:33,052 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 246 transitions. Word has length 12 [2020-06-22 01:08:33,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 01:08:33,052 INFO L480 AbstractCegarLoop]: Abstraction has 107 states and 246 transitions. [2020-06-22 01:08:33,052 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-06-22 01:08:33,052 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 246 transitions. [2020-06-22 01:08:33,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-06-22 01:08:33,053 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 01:08:33,053 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 01:08:33,053 INFO L423 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION]=== [2020-06-22 01:08:33,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:33,054 INFO L82 PathProgramCache]: Analyzing trace with hash 2074864508, now seen corresponding path program 1 times [2020-06-22 01:08:33,054 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:08:33,054 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:08:33,055 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:33,055 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:08:33,055 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:33,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:08:33,200 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 01:08:33,201 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 01:08:33,201 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-06-22 01:08:33,201 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-06-22 01:08:33,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-06-22 01:08:33,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-06-22 01:08:33,202 INFO L87 Difference]: Start difference. First operand 107 states and 246 transitions. Second operand 8 states. [2020-06-22 01:08:33,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 01:08:33,932 INFO L93 Difference]: Finished difference Result 150 states and 323 transitions. [2020-06-22 01:08:33,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-06-22 01:08:33,932 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 12 [2020-06-22 01:08:33,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 01:08:33,934 INFO L225 Difference]: With dead ends: 150 [2020-06-22 01:08:33,934 INFO L226 Difference]: Without dead ends: 146 [2020-06-22 01:08:33,934 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-06-22 01:08:33,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-06-22 01:08:33,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 117. [2020-06-22 01:08:33,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-06-22 01:08:33,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 283 transitions. [2020-06-22 01:08:33,940 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 283 transitions. Word has length 12 [2020-06-22 01:08:33,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 01:08:33,941 INFO L480 AbstractCegarLoop]: Abstraction has 117 states and 283 transitions. [2020-06-22 01:08:33,941 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-06-22 01:08:33,941 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 283 transitions. [2020-06-22 01:08:33,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-06-22 01:08:33,941 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 01:08:33,942 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 01:08:33,942 INFO L423 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION]=== [2020-06-22 01:08:33,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:33,942 INFO L82 PathProgramCache]: Analyzing trace with hash 2074864509, now seen corresponding path program 1 times [2020-06-22 01:08:33,942 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:08:33,942 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:08:33,944 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:33,944 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:08:33,944 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:33,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:08:34,111 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 01:08:34,112 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 01:08:34,112 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-06-22 01:08:34,112 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-06-22 01:08:34,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-06-22 01:08:34,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-06-22 01:08:34,113 INFO L87 Difference]: Start difference. First operand 117 states and 283 transitions. Second operand 9 states. [2020-06-22 01:08:35,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 01:08:35,149 INFO L93 Difference]: Finished difference Result 145 states and 318 transitions. [2020-06-22 01:08:35,149 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-06-22 01:08:35,149 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 12 [2020-06-22 01:08:35,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 01:08:35,151 INFO L225 Difference]: With dead ends: 145 [2020-06-22 01:08:35,151 INFO L226 Difference]: Without dead ends: 141 [2020-06-22 01:08:35,151 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2020-06-22 01:08:35,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2020-06-22 01:08:35,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 117. [2020-06-22 01:08:35,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-06-22 01:08:35,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 278 transitions. [2020-06-22 01:08:35,157 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 278 transitions. Word has length 12 [2020-06-22 01:08:35,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 01:08:35,157 INFO L480 AbstractCegarLoop]: Abstraction has 117 states and 278 transitions. [2020-06-22 01:08:35,157 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-06-22 01:08:35,157 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 278 transitions. [2020-06-22 01:08:35,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-06-22 01:08:35,158 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 01:08:35,158 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 01:08:35,158 INFO L423 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION]=== [2020-06-22 01:08:35,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:35,159 INFO L82 PathProgramCache]: Analyzing trace with hash 1143160271, now seen corresponding path program 1 times [2020-06-22 01:08:35,159 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:08:35,159 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:08:35,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:35,160 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:08:35,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:35,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:08:35,191 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 01:08:35,191 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 01:08:35,191 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-06-22 01:08:35,192 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-06-22 01:08:35,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-06-22 01:08:35,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-06-22 01:08:35,192 INFO L87 Difference]: Start difference. First operand 117 states and 278 transitions. Second operand 5 states. [2020-06-22 01:08:35,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 01:08:35,691 INFO L93 Difference]: Finished difference Result 299 states and 718 transitions. [2020-06-22 01:08:35,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-06-22 01:08:35,691 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-06-22 01:08:35,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 01:08:35,693 INFO L225 Difference]: With dead ends: 299 [2020-06-22 01:08:35,693 INFO L226 Difference]: Without dead ends: 186 [2020-06-22 01:08:35,694 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-06-22 01:08:35,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2020-06-22 01:08:35,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 144. [2020-06-22 01:08:35,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-06-22 01:08:35,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 375 transitions. [2020-06-22 01:08:35,701 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 375 transitions. Word has length 12 [2020-06-22 01:08:35,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 01:08:35,702 INFO L480 AbstractCegarLoop]: Abstraction has 144 states and 375 transitions. [2020-06-22 01:08:35,702 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-06-22 01:08:35,702 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 375 transitions. [2020-06-22 01:08:35,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-06-22 01:08:35,703 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 01:08:35,703 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 01:08:35,703 INFO L423 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION]=== [2020-06-22 01:08:35,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:35,703 INFO L82 PathProgramCache]: Analyzing trace with hash 1028643667, now seen corresponding path program 1 times [2020-06-22 01:08:35,703 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:08:35,704 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:08:35,705 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:35,706 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:08:35,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:35,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:08:35,744 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 01:08:35,744 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 01:08:35,745 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-06-22 01:08:35,745 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-06-22 01:08:35,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-06-22 01:08:35,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-06-22 01:08:35,745 INFO L87 Difference]: Start difference. First operand 144 states and 375 transitions. Second operand 5 states. [2020-06-22 01:08:36,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 01:08:36,289 INFO L93 Difference]: Finished difference Result 326 states and 813 transitions. [2020-06-22 01:08:36,289 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-06-22 01:08:36,290 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-06-22 01:08:36,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 01:08:36,291 INFO L225 Difference]: With dead ends: 326 [2020-06-22 01:08:36,291 INFO L226 Difference]: Without dead ends: 186 [2020-06-22 01:08:36,292 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-06-22 01:08:36,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2020-06-22 01:08:36,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 144. [2020-06-22 01:08:36,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-06-22 01:08:36,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 373 transitions. [2020-06-22 01:08:36,301 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 373 transitions. Word has length 12 [2020-06-22 01:08:36,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 01:08:36,301 INFO L480 AbstractCegarLoop]: Abstraction has 144 states and 373 transitions. [2020-06-22 01:08:36,301 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-06-22 01:08:36,301 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 373 transitions. [2020-06-22 01:08:36,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-06-22 01:08:36,302 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 01:08:36,302 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 01:08:36,302 INFO L423 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION]=== [2020-06-22 01:08:36,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:36,302 INFO L82 PathProgramCache]: Analyzing trace with hash 1085901969, now seen corresponding path program 1 times [2020-06-22 01:08:36,302 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:08:36,303 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:08:36,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:36,303 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:08:36,304 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:36,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:08:36,317 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 01:08:36,318 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 01:08:36,318 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-06-22 01:08:36,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-06-22 01:08:36,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 01:08:36,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 01:08:36,319 INFO L87 Difference]: Start difference. First operand 144 states and 373 transitions. Second operand 3 states. [2020-06-22 01:08:36,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 01:08:36,513 INFO L93 Difference]: Finished difference Result 270 states and 683 transitions. [2020-06-22 01:08:36,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-22 01:08:36,513 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-06-22 01:08:36,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 01:08:36,514 INFO L225 Difference]: With dead ends: 270 [2020-06-22 01:08:36,515 INFO L226 Difference]: Without dead ends: 130 [2020-06-22 01:08:36,515 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 01:08:36,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-06-22 01:08:36,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2020-06-22 01:08:36,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-06-22 01:08:36,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 309 transitions. [2020-06-22 01:08:36,521 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 309 transitions. Word has length 12 [2020-06-22 01:08:36,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 01:08:36,522 INFO L480 AbstractCegarLoop]: Abstraction has 130 states and 309 transitions. [2020-06-22 01:08:36,522 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-06-22 01:08:36,522 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 309 transitions. [2020-06-22 01:08:36,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-06-22 01:08:36,523 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 01:08:36,523 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 01:08:36,523 INFO L423 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION]=== [2020-06-22 01:08:36,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:36,523 INFO L82 PathProgramCache]: Analyzing trace with hash -344977895, now seen corresponding path program 1 times [2020-06-22 01:08:36,523 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:08:36,523 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:08:36,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:36,524 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:08:36,525 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:36,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:08:36,555 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 01:08:36,555 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 01:08:36,556 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-06-22 01:08:36,556 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-06-22 01:08:36,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-06-22 01:08:36,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-06-22 01:08:36,556 INFO L87 Difference]: Start difference. First operand 130 states and 309 transitions. Second operand 5 states. [2020-06-22 01:08:37,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 01:08:37,152 INFO L93 Difference]: Finished difference Result 190 states and 447 transitions. [2020-06-22 01:08:37,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-06-22 01:08:37,153 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-06-22 01:08:37,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 01:08:37,154 INFO L225 Difference]: With dead ends: 190 [2020-06-22 01:08:37,154 INFO L226 Difference]: Without dead ends: 189 [2020-06-22 01:08:37,155 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-06-22 01:08:37,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2020-06-22 01:08:37,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 129. [2020-06-22 01:08:37,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-06-22 01:08:37,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 305 transitions. [2020-06-22 01:08:37,161 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 305 transitions. Word has length 14 [2020-06-22 01:08:37,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 01:08:37,163 INFO L480 AbstractCegarLoop]: Abstraction has 129 states and 305 transitions. [2020-06-22 01:08:37,163 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-06-22 01:08:37,163 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 305 transitions. [2020-06-22 01:08:37,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-06-22 01:08:37,164 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 01:08:37,164 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 01:08:37,164 INFO L423 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION]=== [2020-06-22 01:08:37,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:37,165 INFO L82 PathProgramCache]: Analyzing trace with hash -344977893, now seen corresponding path program 1 times [2020-06-22 01:08:37,165 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:08:37,165 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:08:37,166 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:37,166 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:08:37,166 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:37,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:08:37,206 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 01:08:37,206 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 01:08:37,206 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-06-22 01:08:37,206 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-06-22 01:08:37,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-06-22 01:08:37,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-06-22 01:08:37,207 INFO L87 Difference]: Start difference. First operand 129 states and 305 transitions. Second operand 5 states. [2020-06-22 01:08:37,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 01:08:37,895 INFO L93 Difference]: Finished difference Result 229 states and 550 transitions. [2020-06-22 01:08:37,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-06-22 01:08:37,896 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-06-22 01:08:37,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 01:08:37,897 INFO L225 Difference]: With dead ends: 229 [2020-06-22 01:08:37,898 INFO L226 Difference]: Without dead ends: 228 [2020-06-22 01:08:37,898 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-06-22 01:08:37,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2020-06-22 01:08:37,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 128. [2020-06-22 01:08:37,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-06-22 01:08:37,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 301 transitions. [2020-06-22 01:08:37,905 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 301 transitions. Word has length 14 [2020-06-22 01:08:37,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 01:08:37,905 INFO L480 AbstractCegarLoop]: Abstraction has 128 states and 301 transitions. [2020-06-22 01:08:37,906 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-06-22 01:08:37,906 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 301 transitions. [2020-06-22 01:08:37,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-06-22 01:08:37,906 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 01:08:37,906 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 01:08:37,907 INFO L423 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION]=== [2020-06-22 01:08:37,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:37,907 INFO L82 PathProgramCache]: Analyzing trace with hash -811172156, now seen corresponding path program 1 times [2020-06-22 01:08:37,907 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:08:37,907 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:08:37,908 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:37,908 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:08:37,908 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:37,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:08:37,996 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 01:08:37,996 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 01:08:37,996 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-06-22 01:08:37,996 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-06-22 01:08:37,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-06-22 01:08:37,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-06-22 01:08:37,997 INFO L87 Difference]: Start difference. First operand 128 states and 301 transitions. Second operand 9 states. [2020-06-22 01:08:38,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 01:08:38,898 INFO L93 Difference]: Finished difference Result 153 states and 360 transitions. [2020-06-22 01:08:38,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-06-22 01:08:38,899 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2020-06-22 01:08:38,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 01:08:38,900 INFO L225 Difference]: With dead ends: 153 [2020-06-22 01:08:38,900 INFO L226 Difference]: Without dead ends: 152 [2020-06-22 01:08:38,901 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-06-22 01:08:38,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-06-22 01:08:38,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 127. [2020-06-22 01:08:38,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-06-22 01:08:38,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 297 transitions. [2020-06-22 01:08:38,907 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 297 transitions. Word has length 16 [2020-06-22 01:08:38,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 01:08:38,907 INFO L480 AbstractCegarLoop]: Abstraction has 127 states and 297 transitions. [2020-06-22 01:08:38,907 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-06-22 01:08:38,907 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 297 transitions. [2020-06-22 01:08:38,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-06-22 01:08:38,908 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 01:08:38,908 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 01:08:38,908 INFO L423 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION]=== [2020-06-22 01:08:38,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:38,908 INFO L82 PathProgramCache]: Analyzing trace with hash -811172154, now seen corresponding path program 1 times [2020-06-22 01:08:38,908 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:08:38,909 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:08:38,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:38,909 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:08:38,910 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:38,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:08:38,991 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 01:08:38,991 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 01:08:38,991 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-06-22 01:08:38,992 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-06-22 01:08:38,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-06-22 01:08:38,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-06-22 01:08:38,992 INFO L87 Difference]: Start difference. First operand 127 states and 297 transitions. Second operand 9 states. [2020-06-22 01:08:39,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 01:08:39,797 INFO L93 Difference]: Finished difference Result 153 states and 356 transitions. [2020-06-22 01:08:39,798 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-06-22 01:08:39,798 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2020-06-22 01:08:39,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 01:08:39,799 INFO L225 Difference]: With dead ends: 153 [2020-06-22 01:08:39,799 INFO L226 Difference]: Without dead ends: 152 [2020-06-22 01:08:39,800 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2020-06-22 01:08:39,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-06-22 01:08:39,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 127. [2020-06-22 01:08:39,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-06-22 01:08:39,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 295 transitions. [2020-06-22 01:08:39,806 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 295 transitions. Word has length 16 [2020-06-22 01:08:39,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 01:08:39,806 INFO L480 AbstractCegarLoop]: Abstraction has 127 states and 295 transitions. [2020-06-22 01:08:39,806 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-06-22 01:08:39,806 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 295 transitions. [2020-06-22 01:08:39,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-06-22 01:08:39,807 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 01:08:39,807 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 01:08:39,807 INFO L423 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION]=== [2020-06-22 01:08:39,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:39,808 INFO L82 PathProgramCache]: Analyzing trace with hash -811172153, now seen corresponding path program 1 times [2020-06-22 01:08:39,808 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:08:39,808 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:08:39,809 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:39,809 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:08:39,809 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:39,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:08:39,921 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 01:08:39,921 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 01:08:39,921 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-06-22 01:08:39,922 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-06-22 01:08:39,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-06-22 01:08:39,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-06-22 01:08:39,922 INFO L87 Difference]: Start difference. First operand 127 states and 295 transitions. Second operand 9 states. [2020-06-22 01:08:40,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 01:08:40,886 INFO L93 Difference]: Finished difference Result 152 states and 354 transitions. [2020-06-22 01:08:40,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-06-22 01:08:40,886 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2020-06-22 01:08:40,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 01:08:40,888 INFO L225 Difference]: With dead ends: 152 [2020-06-22 01:08:40,888 INFO L226 Difference]: Without dead ends: 151 [2020-06-22 01:08:40,888 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-06-22 01:08:40,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2020-06-22 01:08:40,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 126. [2020-06-22 01:08:40,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-06-22 01:08:40,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 293 transitions. [2020-06-22 01:08:40,896 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 293 transitions. Word has length 16 [2020-06-22 01:08:40,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 01:08:40,896 INFO L480 AbstractCegarLoop]: Abstraction has 126 states and 293 transitions. [2020-06-22 01:08:40,896 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-06-22 01:08:40,896 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 293 transitions. [2020-06-22 01:08:40,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-06-22 01:08:40,897 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 01:08:40,897 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 01:08:40,897 INFO L423 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION]=== [2020-06-22 01:08:40,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:40,898 INFO L82 PathProgramCache]: Analyzing trace with hash -638767524, now seen corresponding path program 1 times [2020-06-22 01:08:40,898 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:08:40,898 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:08:40,899 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:40,899 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:08:40,899 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:40,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:08:40,935 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 01:08:40,935 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 01:08:40,935 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-06-22 01:08:40,936 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-06-22 01:08:40,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-06-22 01:08:40,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-06-22 01:08:40,936 INFO L87 Difference]: Start difference. First operand 126 states and 293 transitions. Second operand 5 states. [2020-06-22 01:08:41,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 01:08:41,374 INFO L93 Difference]: Finished difference Result 265 states and 609 transitions. [2020-06-22 01:08:41,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-06-22 01:08:41,375 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-06-22 01:08:41,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 01:08:41,376 INFO L225 Difference]: With dead ends: 265 [2020-06-22 01:08:41,376 INFO L226 Difference]: Without dead ends: 143 [2020-06-22 01:08:41,377 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-06-22 01:08:41,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2020-06-22 01:08:41,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 126. [2020-06-22 01:08:41,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-06-22 01:08:41,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 291 transitions. [2020-06-22 01:08:41,382 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 291 transitions. Word has length 16 [2020-06-22 01:08:41,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 01:08:41,383 INFO L480 AbstractCegarLoop]: Abstraction has 126 states and 291 transitions. [2020-06-22 01:08:41,383 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-06-22 01:08:41,383 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 291 transitions. [2020-06-22 01:08:41,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-06-22 01:08:41,383 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 01:08:41,384 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 01:08:41,384 INFO L423 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION]=== [2020-06-22 01:08:41,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:41,384 INFO L82 PathProgramCache]: Analyzing trace with hash -581509222, now seen corresponding path program 1 times [2020-06-22 01:08:41,384 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:08:41,384 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:08:41,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:41,385 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:08:41,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:41,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:08:41,417 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 01:08:41,417 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 01:08:41,417 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-06-22 01:08:41,418 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-06-22 01:08:41,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-06-22 01:08:41,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-06-22 01:08:41,418 INFO L87 Difference]: Start difference. First operand 126 states and 291 transitions. Second operand 5 states. [2020-06-22 01:08:41,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 01:08:41,835 INFO L93 Difference]: Finished difference Result 265 states and 605 transitions. [2020-06-22 01:08:41,835 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-06-22 01:08:41,835 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-06-22 01:08:41,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 01:08:41,837 INFO L225 Difference]: With dead ends: 265 [2020-06-22 01:08:41,837 INFO L226 Difference]: Without dead ends: 143 [2020-06-22 01:08:41,837 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-06-22 01:08:41,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2020-06-22 01:08:41,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 126. [2020-06-22 01:08:41,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-06-22 01:08:41,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 289 transitions. [2020-06-22 01:08:41,842 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 289 transitions. Word has length 16 [2020-06-22 01:08:41,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 01:08:41,843 INFO L480 AbstractCegarLoop]: Abstraction has 126 states and 289 transitions. [2020-06-22 01:08:41,843 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-06-22 01:08:41,843 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 289 transitions. [2020-06-22 01:08:41,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-06-22 01:08:41,843 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 01:08:41,843 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 01:08:41,844 INFO L423 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION]=== [2020-06-22 01:08:41,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:41,844 INFO L82 PathProgramCache]: Analyzing trace with hash -552880071, now seen corresponding path program 1 times [2020-06-22 01:08:41,844 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:08:41,844 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:08:41,845 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:41,845 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:08:41,845 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:41,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:08:41,873 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 01:08:41,874 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 01:08:41,874 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-06-22 01:08:41,874 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-06-22 01:08:41,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-06-22 01:08:41,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-06-22 01:08:41,875 INFO L87 Difference]: Start difference. First operand 126 states and 289 transitions. Second operand 5 states. [2020-06-22 01:08:42,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 01:08:42,366 INFO L93 Difference]: Finished difference Result 183 states and 416 transitions. [2020-06-22 01:08:42,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-06-22 01:08:42,367 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-06-22 01:08:42,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 01:08:42,368 INFO L225 Difference]: With dead ends: 183 [2020-06-22 01:08:42,368 INFO L226 Difference]: Without dead ends: 182 [2020-06-22 01:08:42,369 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-06-22 01:08:42,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-06-22 01:08:42,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 125. [2020-06-22 01:08:42,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-06-22 01:08:42,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 285 transitions. [2020-06-22 01:08:42,376 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 285 transitions. Word has length 16 [2020-06-22 01:08:42,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 01:08:42,376 INFO L480 AbstractCegarLoop]: Abstraction has 125 states and 285 transitions. [2020-06-22 01:08:42,376 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-06-22 01:08:42,376 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 285 transitions. [2020-06-22 01:08:42,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-06-22 01:08:42,377 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 01:08:42,377 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 01:08:42,377 INFO L423 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION]=== [2020-06-22 01:08:42,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:42,378 INFO L82 PathProgramCache]: Analyzing trace with hash -552880069, now seen corresponding path program 1 times [2020-06-22 01:08:42,378 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:08:42,378 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:08:42,379 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:42,379 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:08:42,379 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:42,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:08:42,416 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 01:08:42,417 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 01:08:42,417 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-06-22 01:08:42,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-06-22 01:08:42,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-06-22 01:08:42,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-06-22 01:08:42,418 INFO L87 Difference]: Start difference. First operand 125 states and 285 transitions. Second operand 5 states. [2020-06-22 01:08:42,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 01:08:42,929 INFO L93 Difference]: Finished difference Result 225 states and 524 transitions. [2020-06-22 01:08:42,929 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-06-22 01:08:42,929 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-06-22 01:08:42,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 01:08:42,931 INFO L225 Difference]: With dead ends: 225 [2020-06-22 01:08:42,931 INFO L226 Difference]: Without dead ends: 224 [2020-06-22 01:08:42,931 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-06-22 01:08:42,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2020-06-22 01:08:42,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 125. [2020-06-22 01:08:42,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-06-22 01:08:42,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 283 transitions. [2020-06-22 01:08:42,937 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 283 transitions. Word has length 16 [2020-06-22 01:08:42,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 01:08:42,937 INFO L480 AbstractCegarLoop]: Abstraction has 125 states and 283 transitions. [2020-06-22 01:08:42,937 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-06-22 01:08:42,937 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 283 transitions. [2020-06-22 01:08:42,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-06-22 01:08:42,938 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 01:08:42,938 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 01:08:42,938 INFO L423 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION]=== [2020-06-22 01:08:42,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:42,938 INFO L82 PathProgramCache]: Analyzing trace with hash -552880068, now seen corresponding path program 1 times [2020-06-22 01:08:42,938 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:08:42,938 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:08:42,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:42,939 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:08:42,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:42,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:08:42,991 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 01:08:42,991 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 01:08:42,992 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-06-22 01:08:42,992 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-06-22 01:08:42,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-06-22 01:08:42,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-06-22 01:08:42,992 INFO L87 Difference]: Start difference. First operand 125 states and 283 transitions. Second operand 5 states. [2020-06-22 01:08:43,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 01:08:43,671 INFO L93 Difference]: Finished difference Result 222 states and 517 transitions. [2020-06-22 01:08:43,672 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-06-22 01:08:43,672 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-06-22 01:08:43,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 01:08:43,673 INFO L225 Difference]: With dead ends: 222 [2020-06-22 01:08:43,674 INFO L226 Difference]: Without dead ends: 221 [2020-06-22 01:08:43,674 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-06-22 01:08:43,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-06-22 01:08:43,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 124. [2020-06-22 01:08:43,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-06-22 01:08:43,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 281 transitions. [2020-06-22 01:08:43,690 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 281 transitions. Word has length 16 [2020-06-22 01:08:43,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 01:08:43,690 INFO L480 AbstractCegarLoop]: Abstraction has 124 states and 281 transitions. [2020-06-22 01:08:43,690 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-06-22 01:08:43,690 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 281 transitions. [2020-06-22 01:08:43,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-06-22 01:08:43,691 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 01:08:43,691 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 01:08:43,691 INFO L423 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION]=== [2020-06-22 01:08:43,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:43,691 INFO L82 PathProgramCache]: Analyzing trace with hash 407523658, now seen corresponding path program 1 times [2020-06-22 01:08:43,692 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:08:43,692 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:08:43,692 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:43,692 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:08:43,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:43,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:08:43,722 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 01:08:43,722 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2020-06-22 01:08:43,722 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2020-06-22 01:08:43,735 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:08:43,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:08:43,775 INFO L256 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 01:08:43,782 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 01:08:43,835 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-06-22 01:08:43,836 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 01:08:43,839 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 01:08:43,839 INFO L427 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-06-22 01:08:43,840 INFO L217 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2020-06-22 01:08:44,050 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2020-06-22 01:08:44,051 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SmtUtils.select(SmtUtils.java:1322) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SmtUtils.multiDimensionalSelect(SmtUtils.java:363) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SmtUtils.multiDimensionalStore(SmtUtils.java:379) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.MultiDimensionalStore.(MultiDimensionalStore.java:73) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.MultiDimensionalNestedStore.getInnermost(MultiDimensionalNestedStore.java:101) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:269) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive$TermWalker.walk(NonRecursive.java:146) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:191) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder.(ArrayOccurrenceAnalysis.java:177) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis.(ArrayOccurrenceAnalysis.java:81) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis.downgradeDimensionsIfNecessary(ArrayOccurrenceAnalysis.java:169) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.computeCostElimation(ArrayIndexBasedCostEstimation.java:58) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.computeCostEstimation(ArrayIndexBasedCostEstimation.java:49) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.computeCostEtimation(ElimStorePlain.java:450) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:386) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:212) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:305) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:456) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-06-22 01:08:44,054 INFO L168 Benchmark]: Toolchain (without parser) took 17448.21 ms. Allocated memory was 649.6 MB in the beginning and 948.4 MB in the end (delta: 298.8 MB). Free memory was 563.8 MB in the beginning and 863.9 MB in the end (delta: -300.1 MB). There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 01:08:44,055 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 585.8 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 01:08:44,055 INFO L168 Benchmark]: CACSL2BoogieTranslator took 493.53 ms. Allocated memory was 649.6 MB in the beginning and 688.9 MB in the end (delta: 39.3 MB). Free memory was 562.7 MB in the beginning and 635.3 MB in the end (delta: -72.6 MB). Peak memory consumption was 31.0 MB. Max. memory is 50.3 GB. [2020-06-22 01:08:44,056 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.56 ms. Allocated memory is still 688.9 MB. Free memory was 635.3 MB in the beginning and 633.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. [2020-06-22 01:08:44,057 INFO L168 Benchmark]: Boogie Preprocessor took 33.20 ms. Allocated memory is still 688.9 MB. Free memory was 633.2 MB in the beginning and 629.9 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 50.3 GB. [2020-06-22 01:08:44,057 INFO L168 Benchmark]: RCFGBuilder took 569.08 ms. Allocated memory is still 688.9 MB. Free memory was 629.9 MB in the beginning and 583.6 MB in the end (delta: 46.4 MB). Peak memory consumption was 46.4 MB. Max. memory is 50.3 GB. [2020-06-22 01:08:44,058 INFO L168 Benchmark]: BlockEncodingV2 took 186.62 ms. Allocated memory is still 688.9 MB. Free memory was 583.6 MB in the beginning and 556.6 MB in the end (delta: 27.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 50.3 GB. [2020-06-22 01:08:44,058 INFO L168 Benchmark]: TraceAbstraction took 16108.60 ms. Allocated memory was 688.9 MB in the beginning and 948.4 MB in the end (delta: 259.5 MB). Free memory was 556.6 MB in the beginning and 863.9 MB in the end (delta: -307.3 MB). There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 01:08:44,062 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 119 locations, 130 edges - StatisticsResult: Encoded RCFG 105 locations, 216 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 585.8 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 493.53 ms. Allocated memory was 649.6 MB in the beginning and 688.9 MB in the end (delta: 39.3 MB). Free memory was 562.7 MB in the beginning and 635.3 MB in the end (delta: -72.6 MB). Peak memory consumption was 31.0 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 52.56 ms. Allocated memory is still 688.9 MB. Free memory was 635.3 MB in the beginning and 633.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 33.20 ms. Allocated memory is still 688.9 MB. Free memory was 633.2 MB in the beginning and 629.9 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 50.3 GB. * RCFGBuilder took 569.08 ms. Allocated memory is still 688.9 MB. Free memory was 629.9 MB in the beginning and 583.6 MB in the end (delta: 46.4 MB). Peak memory consumption was 46.4 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 186.62 ms. Allocated memory is still 688.9 MB. Free memory was 583.6 MB in the beginning and 556.6 MB in the end (delta: 27.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 50.3 GB. * TraceAbstraction took 16108.60 ms. Allocated memory was 688.9 MB in the beginning and 948.4 MB in the end (delta: 259.5 MB). Free memory was 556.6 MB in the beginning and 863.9 MB in the end (delta: -307.3 MB). There was no memory consumed. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SmtUtils.select(SmtUtils.java:1322) RESULT: Ultimate could not prove your program: Toolchain returned no result. !SESSION 2020-06-22 01:08:23.387 ----------------------------------------------- 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/sandbox2/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/sandbox2/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-06-22 01:08:44.296 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check