java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/elevator_spec1_product24.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:07:09,486 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:07:09,490 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:07:09,511 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:07:09,512 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:07:09,516 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:07:09,519 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:07:09,534 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:07:09,540 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:07:09,545 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:07:09,547 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:07:09,549 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:07:09,550 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:07:09,554 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:07:09,558 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:07:09,560 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:07:09,562 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:07:09,564 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:07:09,566 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:07:09,572 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:07:09,576 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:07:09,579 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:07:09,582 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:07:09,583 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:07:09,586 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:07:09,586 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:07:09,587 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:07:09,588 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:07:09,590 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:07:09,591 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:07:09,591 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:07:09,592 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:07:09,593 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:07:09,594 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:07:09,595 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:07:09,595 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:07:09,596 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:07:09,596 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:07:09,597 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:07:09,597 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:07:09,599 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:07:09,600 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 03:07:09,639 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:07:09,639 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:07:09,640 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:07:09,641 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:07:09,641 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:07:09,641 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:07:09,646 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:07:09,647 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:07:09,647 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:07:09,647 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:07:09,647 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:07:09,647 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:07:09,648 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:07:09,648 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:07:09,648 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:07:09,648 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:07:09,648 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:07:09,649 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:07:09,649 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:07:09,649 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:07:09,650 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:07:09,650 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:07:09,650 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:07:09,650 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:07:09,651 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:07:09,651 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:07:09,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:07:09,652 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:07:09,652 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 03:07:10,044 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:07:10,067 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:07:10,071 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:07:10,073 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:07:10,074 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:07:10,075 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec1_product24.cil.c [2019-10-15 03:07:10,161 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37ec008b4/bc7edbb018674d2da720305c5f7e9809/FLAG92994b50b [2019-10-15 03:07:10,854 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:07:10,855 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product24.cil.c [2019-10-15 03:07:10,889 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37ec008b4/bc7edbb018674d2da720305c5f7e9809/FLAG92994b50b [2019-10-15 03:07:10,997 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37ec008b4/bc7edbb018674d2da720305c5f7e9809 [2019-10-15 03:07:11,008 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:07:11,009 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:07:11,011 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:07:11,011 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:07:11,014 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:07:11,015 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:07:10" (1/1) ... [2019-10-15 03:07:11,018 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35a8eca5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:11, skipping insertion in model container [2019-10-15 03:07:11,019 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:07:10" (1/1) ... [2019-10-15 03:07:11,027 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:07:11,103 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:07:12,038 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:07:12,058 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:07:12,270 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:07:12,376 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:07:12,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:12 WrapperNode [2019-10-15 03:07:12,377 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:07:12,378 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:07:12,378 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:07:12,378 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:07:12,393 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:12" (1/1) ... [2019-10-15 03:07:12,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:12" (1/1) ... [2019-10-15 03:07:12,431 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:12" (1/1) ... [2019-10-15 03:07:12,432 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:12" (1/1) ... [2019-10-15 03:07:12,498 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:12" (1/1) ... [2019-10-15 03:07:12,537 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:12" (1/1) ... [2019-10-15 03:07:12,550 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:12" (1/1) ... [2019-10-15 03:07:12,570 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:07:12,571 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:07:12,571 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:07:12,571 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:07:12,573 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:12" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:07:12,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:07:12,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:07:12,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:07:12,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:07:12,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:07:12,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:07:12,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:07:12,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:07:12,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:07:12,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:07:12,695 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-15 03:07:12,695 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-15 03:07:12,695 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-15 03:07:12,696 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-15 03:07:12,696 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-15 03:07:12,696 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-15 03:07:12,696 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-15 03:07:12,696 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-15 03:07:12,697 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-15 03:07:12,698 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-15 03:07:12,698 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-15 03:07:12,699 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-15 03:07:12,700 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-15 03:07:12,700 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-15 03:07:12,700 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:07:12,700 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-15 03:07:12,700 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:07:12,701 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-15 03:07:12,701 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-15 03:07:12,701 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-15 03:07:12,701 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-15 03:07:12,702 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-15 03:07:12,702 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-15 03:07:12,702 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-15 03:07:12,703 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-15 03:07:12,703 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-15 03:07:12,703 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-15 03:07:12,703 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-15 03:07:12,703 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-10-15 03:07:12,704 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-15 03:07:12,704 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-15 03:07:12,704 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-15 03:07:12,704 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-15 03:07:12,705 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-15 03:07:12,705 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-15 03:07:12,705 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-15 03:07:12,706 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-15 03:07:12,706 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-15 03:07:12,706 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-15 03:07:12,706 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-15 03:07:12,706 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-15 03:07:12,707 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2019-10-15 03:07:12,707 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__twothirdsfull [2019-10-15 03:07:12,707 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-15 03:07:12,707 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-15 03:07:12,707 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-15 03:07:12,708 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__weight [2019-10-15 03:07:12,708 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2019-10-15 03:07:12,708 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-15 03:07:12,709 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-15 03:07:12,709 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-15 03:07:12,709 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2019-10-15 03:07:12,710 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-15 03:07:12,710 INFO L138 BoogieDeclarations]: Found implementation of procedure printState__wrappee__executivefloor [2019-10-15 03:07:12,710 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-15 03:07:12,710 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-15 03:07:12,711 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2019-10-15 03:07:12,711 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2019-10-15 03:07:12,711 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-15 03:07:12,711 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-15 03:07:12,712 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-10-15 03:07:12,712 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__2 [2019-10-15 03:07:12,712 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__3 [2019-10-15 03:07:12,713 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__4 [2019-10-15 03:07:12,713 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:07:12,713 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-15 03:07:12,714 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-15 03:07:12,714 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-15 03:07:12,715 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:07:12,715 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:07:12,716 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:07:12,716 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:07:12,717 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:07:12,717 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:07:12,717 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:07:12,717 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:07:12,717 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:07:12,718 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:07:12,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:07:12,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:07:12,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:07:12,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:07:12,719 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:07:12,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:07:12,720 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:07:12,720 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:07:12,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:07:12,720 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:07:12,720 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:07:12,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:07:12,721 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:07:12,721 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:07:12,721 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 03:07:12,721 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-15 03:07:12,722 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-15 03:07:12,722 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-15 03:07:12,722 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-15 03:07:12,722 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-15 03:07:12,722 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-15 03:07:12,723 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-15 03:07:12,723 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-15 03:07:12,723 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-15 03:07:12,723 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-15 03:07:12,723 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-15 03:07:12,723 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-15 03:07:12,724 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-15 03:07:12,724 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-15 03:07:12,724 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-15 03:07:12,724 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-15 03:07:12,725 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-15 03:07:12,725 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-15 03:07:12,725 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-15 03:07:12,725 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-15 03:07:12,726 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-15 03:07:12,727 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:07:12,727 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-10-15 03:07:12,727 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__4 [2019-10-15 03:07:12,727 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:07:12,727 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-15 03:07:12,727 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:07:12,727 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:07:12,728 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:07:12,728 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:07:12,729 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-15 03:07:12,732 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-15 03:07:12,733 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-15 03:07:12,733 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-15 03:07:12,733 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-15 03:07:12,734 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-15 03:07:12,734 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-15 03:07:12,734 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__2 [2019-10-15 03:07:12,735 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:07:12,735 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-15 03:07:12,735 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-15 03:07:12,741 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-15 03:07:12,742 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-15 03:07:12,742 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-15 03:07:12,742 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-15 03:07:12,742 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-15 03:07:12,742 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-15 03:07:12,743 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-15 03:07:12,743 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2019-10-15 03:07:12,743 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2019-10-15 03:07:12,743 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-10-15 03:07:12,743 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-15 03:07:12,744 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-15 03:07:12,744 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-15 03:07:12,744 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-15 03:07:12,744 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-15 03:07:12,744 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-15 03:07:12,744 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2019-10-15 03:07:12,744 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__twothirdsfull [2019-10-15 03:07:12,744 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-15 03:07:12,745 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-15 03:07:12,745 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__weight [2019-10-15 03:07:12,745 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2019-10-15 03:07:12,745 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-15 03:07:12,745 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-15 03:07:12,745 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-15 03:07:12,745 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2019-10-15 03:07:12,746 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__3 [2019-10-15 03:07:12,746 INFO L130 BoogieDeclarations]: Found specification of procedure printState__wrappee__executivefloor [2019-10-15 03:07:12,746 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-15 03:07:12,746 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-15 03:07:12,746 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-15 03:07:12,746 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:07:12,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:07:12,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:07:12,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:07:19,922 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:07:19,922 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-15 03:07:19,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:07:19 BoogieIcfgContainer [2019-10-15 03:07:19,924 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:07:19,925 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:07:19,925 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:07:19,929 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:07:19,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:07:10" (1/3) ... [2019-10-15 03:07:19,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20b95b98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:07:19, skipping insertion in model container [2019-10-15 03:07:19,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:12" (2/3) ... [2019-10-15 03:07:19,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20b95b98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:07:19, skipping insertion in model container [2019-10-15 03:07:19,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:07:19" (3/3) ... [2019-10-15 03:07:19,933 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product24.cil.c [2019-10-15 03:07:19,944 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:07:19,955 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:07:19,969 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:07:20,005 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:07:20,005 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:07:20,006 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:07:20,006 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:07:20,006 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:07:20,006 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:07:20,006 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:07:20,006 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:07:20,044 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states. [2019-10-15 03:07:20,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-10-15 03:07:20,059 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:07:20,061 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:07:20,063 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:07:20,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:07:20,070 INFO L82 PathProgramCache]: Analyzing trace with hash 167046203, now seen corresponding path program 1 times [2019-10-15 03:07:20,080 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:07:20,080 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770578306] [2019-10-15 03:07:20,081 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:07:20,081 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:07:20,081 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:07:20,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:07:20,854 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-15 03:07:20,855 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770578306] [2019-10-15 03:07:20,856 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:07:20,856 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:07:20,856 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675423463] [2019-10-15 03:07:20,862 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:07:20,862 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:07:20,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:07:20,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:07:20,881 INFO L87 Difference]: Start difference. First operand 610 states. Second operand 2 states. [2019-10-15 03:07:20,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:07:20,994 INFO L93 Difference]: Finished difference Result 513 states and 757 transitions. [2019-10-15 03:07:20,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:07:20,999 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 97 [2019-10-15 03:07:21,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:07:21,045 INFO L225 Difference]: With dead ends: 513 [2019-10-15 03:07:21,045 INFO L226 Difference]: Without dead ends: 479 [2019-10-15 03:07:21,059 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:07:21,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2019-10-15 03:07:21,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 479. [2019-10-15 03:07:21,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 479 states. [2019-10-15 03:07:21,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 706 transitions. [2019-10-15 03:07:21,226 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 706 transitions. Word has length 97 [2019-10-15 03:07:21,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:07:21,230 INFO L462 AbstractCegarLoop]: Abstraction has 479 states and 706 transitions. [2019-10-15 03:07:21,230 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:07:21,230 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 706 transitions. [2019-10-15 03:07:21,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-10-15 03:07:21,244 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:07:21,245 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:07:21,245 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:07:21,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:07:21,246 INFO L82 PathProgramCache]: Analyzing trace with hash 697325300, now seen corresponding path program 1 times [2019-10-15 03:07:21,246 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:07:21,247 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670618038] [2019-10-15 03:07:21,247 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:07:21,247 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:07:21,247 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:07:21,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:07:21,898 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-15 03:07:21,899 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670618038] [2019-10-15 03:07:21,899 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:07:21,900 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-15 03:07:21,900 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422202861] [2019-10-15 03:07:21,904 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 03:07:21,909 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:07:21,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 03:07:21,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-15 03:07:21,910 INFO L87 Difference]: Start difference. First operand 479 states and 706 transitions. Second operand 9 states. [2019-10-15 03:07:30,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:07:30,726 INFO L93 Difference]: Finished difference Result 1298 states and 1960 transitions. [2019-10-15 03:07:30,726 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-10-15 03:07:30,726 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 98 [2019-10-15 03:07:30,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:07:30,747 INFO L225 Difference]: With dead ends: 1298 [2019-10-15 03:07:30,748 INFO L226 Difference]: Without dead ends: 872 [2019-10-15 03:07:30,769 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2019-10-15 03:07:30,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2019-10-15 03:07:30,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 841. [2019-10-15 03:07:30,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 841 states. [2019-10-15 03:07:30,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 1228 transitions. [2019-10-15 03:07:30,872 INFO L78 Accepts]: Start accepts. Automaton has 841 states and 1228 transitions. Word has length 98 [2019-10-15 03:07:30,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:07:30,873 INFO L462 AbstractCegarLoop]: Abstraction has 841 states and 1228 transitions. [2019-10-15 03:07:30,873 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 03:07:30,873 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 1228 transitions. [2019-10-15 03:07:30,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2019-10-15 03:07:30,875 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:07:30,876 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:07:30,876 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:07:30,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:07:30,876 INFO L82 PathProgramCache]: Analyzing trace with hash -1082098819, now seen corresponding path program 1 times [2019-10-15 03:07:30,877 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:07:30,877 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898250387] [2019-10-15 03:07:30,877 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:07:30,877 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:07:30,877 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:07:30,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:07:31,127 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-15 03:07:31,129 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898250387] [2019-10-15 03:07:31,130 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:07:31,130 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:07:31,130 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052949065] [2019-10-15 03:07:31,131 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:07:31,132 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:07:31,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:07:31,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:07:31,133 INFO L87 Difference]: Start difference. First operand 841 states and 1228 transitions. Second operand 3 states. [2019-10-15 03:07:31,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:07:31,337 INFO L93 Difference]: Finished difference Result 2409 states and 3567 transitions. [2019-10-15 03:07:31,337 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:07:31,337 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 99 [2019-10-15 03:07:31,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:07:31,367 INFO L225 Difference]: With dead ends: 2409 [2019-10-15 03:07:31,368 INFO L226 Difference]: Without dead ends: 1623 [2019-10-15 03:07:31,377 INFO L600 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 [2019-10-15 03:07:31,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1623 states. [2019-10-15 03:07:31,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1623 to 1616. [2019-10-15 03:07:31,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1616 states. [2019-10-15 03:07:31,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1616 states to 1616 states and 2384 transitions. [2019-10-15 03:07:31,533 INFO L78 Accepts]: Start accepts. Automaton has 1616 states and 2384 transitions. Word has length 99 [2019-10-15 03:07:31,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:07:31,535 INFO L462 AbstractCegarLoop]: Abstraction has 1616 states and 2384 transitions. [2019-10-15 03:07:31,535 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:07:31,536 INFO L276 IsEmpty]: Start isEmpty. Operand 1616 states and 2384 transitions. [2019-10-15 03:07:31,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2019-10-15 03:07:31,545 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:07:31,545 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:07:31,546 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:07:31,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:07:31,546 INFO L82 PathProgramCache]: Analyzing trace with hash 814303691, now seen corresponding path program 1 times [2019-10-15 03:07:31,546 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:07:31,547 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403323204] [2019-10-15 03:07:31,547 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:07:31,547 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:07:31,547 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:07:31,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:07:32,030 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-15 03:07:32,030 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403323204] [2019-10-15 03:07:32,031 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:07:32,031 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 03:07:32,031 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637112462] [2019-10-15 03:07:32,032 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 03:07:32,033 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:07:32,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 03:07:32,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-15 03:07:32,034 INFO L87 Difference]: Start difference. First operand 1616 states and 2384 transitions. Second operand 6 states. [2019-10-15 03:07:36,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:07:36,602 INFO L93 Difference]: Finished difference Result 5129 states and 7717 transitions. [2019-10-15 03:07:36,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 03:07:36,603 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 100 [2019-10-15 03:07:36,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:07:36,633 INFO L225 Difference]: With dead ends: 5129 [2019-10-15 03:07:36,633 INFO L226 Difference]: Without dead ends: 3569 [2019-10-15 03:07:36,643 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2019-10-15 03:07:36,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3569 states. [2019-10-15 03:07:36,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3569 to 3258. [2019-10-15 03:07:36,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3258 states. [2019-10-15 03:07:36,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3258 states to 3258 states and 4895 transitions. [2019-10-15 03:07:36,896 INFO L78 Accepts]: Start accepts. Automaton has 3258 states and 4895 transitions. Word has length 100 [2019-10-15 03:07:36,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:07:36,897 INFO L462 AbstractCegarLoop]: Abstraction has 3258 states and 4895 transitions. [2019-10-15 03:07:36,897 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 03:07:36,897 INFO L276 IsEmpty]: Start isEmpty. Operand 3258 states and 4895 transitions. [2019-10-15 03:07:36,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-10-15 03:07:36,903 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:07:36,903 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:07:36,904 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:07:36,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:07:36,904 INFO L82 PathProgramCache]: Analyzing trace with hash -304140986, now seen corresponding path program 1 times [2019-10-15 03:07:36,904 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:07:36,905 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113936913] [2019-10-15 03:07:36,905 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:07:36,905 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:07:36,905 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:07:37,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:07:37,245 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 03:07:37,246 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113936913] [2019-10-15 03:07:37,246 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:07:37,246 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:07:37,246 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210794653] [2019-10-15 03:07:37,247 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:07:37,247 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:07:37,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:07:37,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:07:37,248 INFO L87 Difference]: Start difference. First operand 3258 states and 4895 transitions. Second operand 7 states. [2019-10-15 03:07:42,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:07:42,101 INFO L93 Difference]: Finished difference Result 8025 states and 12049 transitions. [2019-10-15 03:07:42,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-15 03:07:42,104 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 146 [2019-10-15 03:07:42,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:07:42,153 INFO L225 Difference]: With dead ends: 8025 [2019-10-15 03:07:42,153 INFO L226 Difference]: Without dead ends: 4826 [2019-10-15 03:07:42,177 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-10-15 03:07:42,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4826 states. [2019-10-15 03:07:42,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4826 to 4739. [2019-10-15 03:07:42,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4739 states. [2019-10-15 03:07:42,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4739 states to 4739 states and 7072 transitions. [2019-10-15 03:07:42,523 INFO L78 Accepts]: Start accepts. Automaton has 4739 states and 7072 transitions. Word has length 146 [2019-10-15 03:07:42,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:07:42,524 INFO L462 AbstractCegarLoop]: Abstraction has 4739 states and 7072 transitions. [2019-10-15 03:07:42,524 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:07:42,525 INFO L276 IsEmpty]: Start isEmpty. Operand 4739 states and 7072 transitions. [2019-10-15 03:07:42,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-10-15 03:07:42,529 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:07:42,529 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:07:42,530 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:07:42,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:07:42,531 INFO L82 PathProgramCache]: Analyzing trace with hash 2131483078, now seen corresponding path program 1 times [2019-10-15 03:07:42,531 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:07:42,531 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538659646] [2019-10-15 03:07:42,531 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:07:42,532 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:07:42,532 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:07:42,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:07:42,913 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 03:07:42,914 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538659646] [2019-10-15 03:07:42,914 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:07:42,914 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-15 03:07:42,914 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311016951] [2019-10-15 03:07:42,915 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-15 03:07:42,915 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:07:42,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-15 03:07:42,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2019-10-15 03:07:42,916 INFO L87 Difference]: Start difference. First operand 4739 states and 7072 transitions. Second operand 12 states.