/usr/bin/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_spec2_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:11:06,935 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:11:06,937 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:11:06,949 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:11:06,950 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:11:06,951 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:11:06,952 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:11:06,954 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:11:06,956 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:11:06,957 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:11:06,958 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:11:06,959 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:11:06,960 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:11:06,961 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:11:06,962 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:11:06,963 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:11:06,964 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:11:06,965 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:11:06,967 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:11:06,969 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:11:06,971 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:11:06,972 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:11:06,973 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:11:06,974 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:11:06,976 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 04:11:06,977 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 04:11:06,977 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 04:11:06,978 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 04:11:06,978 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 04:11:06,979 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 04:11:06,980 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 04:11:06,981 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 04:11:06,981 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 04:11:06,982 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 04:11:06,983 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 04:11:06,983 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 04:11:06,984 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 04:11:06,984 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 04:11:06,985 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:11:06,986 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:11:06,986 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:11:06,989 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 [2019-11-07 04:11:07,012 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:11:07,013 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:11:07,015 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:11:07,015 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:11:07,016 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:11:07,016 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:11:07,016 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:11:07,016 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:11:07,016 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:11:07,017 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:11:07,018 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:11:07,018 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:11:07,018 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:11:07,019 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:11:07,019 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:11:07,019 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:11:07,019 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:11:07,019 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:11:07,020 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:11:07,020 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:11:07,020 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:11:07,021 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:11:07,021 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:11:07,021 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:11:07,021 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:11:07,021 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:11:07,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:11:07,022 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:11:07,022 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 [2019-11-07 04:11:07,293 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:11:07,313 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:11:07,316 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:11:07,318 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:11:07,318 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:11:07,319 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec2_product31.cil.c [2019-11-07 04:11:07,394 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff660f28e/edae1f79c0c54744a89510bfa9b571d2/FLAGd1a8cf5f5 [2019-11-07 04:11:08,056 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:11:08,057 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product31.cil.c [2019-11-07 04:11:08,090 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff660f28e/edae1f79c0c54744a89510bfa9b571d2/FLAGd1a8cf5f5 [2019-11-07 04:11:08,217 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff660f28e/edae1f79c0c54744a89510bfa9b571d2 [2019-11-07 04:11:08,234 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:11:08,236 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:11:08,250 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:11:08,251 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:11:08,261 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:11:08,262 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:11:08" (1/1) ... [2019-11-07 04:11:08,268 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f1edfd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:11:08, skipping insertion in model container [2019-11-07 04:11:08,269 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:11:08" (1/1) ... [2019-11-07 04:11:08,279 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:11:08,404 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:11:09,073 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:11:09,104 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:11:09,321 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:11:09,406 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:11:09,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:11:09 WrapperNode [2019-11-07 04:11:09,406 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:11:09,407 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:11:09,407 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:11:09,408 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:11:09,421 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:11:09" (1/1) ... [2019-11-07 04:11:09,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:11:09" (1/1) ... [2019-11-07 04:11:09,454 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:11:09" (1/1) ... [2019-11-07 04:11:09,455 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:11:09" (1/1) ... [2019-11-07 04:11:09,518 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:11:09" (1/1) ... [2019-11-07 04:11:09,554 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:11:09" (1/1) ... [2019-11-07 04:11:09,567 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:11:09" (1/1) ... [2019-11-07 04:11:09,585 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:11:09,586 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:11:09,586 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:11:09,586 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:11:09,588 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:11:09" (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 [2019-11-07 04:11:09,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:11:09,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:11:09,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 04:11:09,675 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-11-07 04:11:09,676 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-11-07 04:11:09,676 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-11-07 04:11:09,676 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-11-07 04:11:09,676 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-11-07 04:11:09,677 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-11-07 04:11:09,677 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-11-07 04:11:09,677 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-11-07 04:11:09,677 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-11-07 04:11:09,677 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-11-07 04:11:09,678 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-11-07 04:11:09,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-11-07 04:11:09,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-11-07 04:11:09,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__3 [2019-11-07 04:11:09,679 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__4 [2019-11-07 04:11:09,679 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-11-07 04:11:09,680 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-11-07 04:11:09,680 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-11-07 04:11:09,680 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-11-07 04:11:09,680 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-11-07 04:11:09,681 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-11-07 04:11:09,681 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-11-07 04:11:09,681 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-11-07 04:11:09,681 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-11-07 04:11:09,681 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-11-07 04:11:09,681 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-11-07 04:11:09,682 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-11-07 04:11:09,682 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-11-07 04:11:09,682 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-11-07 04:11:09,682 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-11-07 04:11:09,682 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-11-07 04:11:09,683 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 04:11:09,683 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-11-07 04:11:09,683 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:11:09,683 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-11-07 04:11:09,683 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-11-07 04:11:09,683 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-11-07 04:11:09,684 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-11-07 04:11:09,684 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-11-07 04:11:09,684 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-11-07 04:11:09,684 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__weight [2019-11-07 04:11:09,684 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-11-07 04:11:09,684 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-11-07 04:11:09,685 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-11-07 04:11:09,685 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-11-07 04:11:09,685 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-11-07 04:11:09,685 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-11-07 04:11:09,685 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-11-07 04:11:09,685 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-11-07 04:11:09,686 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-11-07 04:11:09,686 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-11-07 04:11:09,686 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2019-11-07 04:11:09,686 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__twothirdsfull [2019-11-07 04:11:09,687 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-11-07 04:11:09,687 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-11-07 04:11:09,687 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-11-07 04:11:09,687 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-11-07 04:11:09,688 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2019-11-07 04:11:09,688 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-11-07 04:11:09,688 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-11-07 04:11:09,688 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-11-07 04:11:09,688 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-11-07 04:11:09,689 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-11-07 04:11:09,689 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-11-07 04:11:09,689 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2019-11-07 04:11:09,689 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2019-11-07 04:11:09,689 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 04:11:09,690 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 04:11:09,690 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 04:11:09,690 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 04:11:09,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 04:11:09,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 04:11:09,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 04:11:09,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 04:11:09,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 04:11:09,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 04:11:09,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 04:11:09,692 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 04:11:09,692 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:11:09,692 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:11:09,692 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-11-07 04:11:09,692 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-11-07 04:11:09,693 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-11-07 04:11:09,693 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-11-07 04:11:09,693 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-11-07 04:11:09,693 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-11-07 04:11:09,693 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-11-07 04:11:09,694 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-11-07 04:11:09,694 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-11-07 04:11:09,694 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-11-07 04:11:09,694 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-11-07 04:11:09,694 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 04:11:09,694 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-11-07 04:11:09,695 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-11-07 04:11:09,695 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-11-07 04:11:09,695 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-11-07 04:11:09,695 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__3 [2019-11-07 04:11:09,695 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__4 [2019-11-07 04:11:09,695 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-11-07 04:11:09,696 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-11-07 04:11:09,696 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-11-07 04:11:09,696 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-11-07 04:11:09,696 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-11-07 04:11:09,696 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-11-07 04:11:09,697 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-11-07 04:11:09,697 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-07 04:11:09,697 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-11-07 04:11:09,697 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-11-07 04:11:09,697 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-11-07 04:11:09,697 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-11-07 04:11:09,698 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-11-07 04:11:09,698 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-11-07 04:11:09,698 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-11-07 04:11:09,698 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-11-07 04:11:09,698 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-11-07 04:11:09,699 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-11-07 04:11:09,699 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-11-07 04:11:09,699 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-11-07 04:11:09,699 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-11-07 04:11:09,699 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-11-07 04:11:09,700 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-11-07 04:11:09,700 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 04:11:09,700 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 04:11:09,700 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-11-07 04:11:09,700 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 04:11:09,701 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 04:11:09,701 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 04:11:09,701 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:11:09,701 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 04:11:09,701 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-11-07 04:11:09,702 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-11-07 04:11:09,702 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-11-07 04:11:09,702 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-11-07 04:11:09,702 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2019-11-07 04:11:09,702 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2019-11-07 04:11:09,703 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-11-07 04:11:09,703 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-11-07 04:11:09,703 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__weight [2019-11-07 04:11:09,703 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-11-07 04:11:09,703 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-11-07 04:11:09,704 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-11-07 04:11:09,704 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-11-07 04:11:09,704 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-11-07 04:11:09,704 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2019-11-07 04:11:09,704 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__twothirdsfull [2019-11-07 04:11:09,704 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-11-07 04:11:09,705 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-11-07 04:11:09,705 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-11-07 04:11:09,705 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2019-11-07 04:11:09,705 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-11-07 04:11:09,705 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-11-07 04:11:09,706 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-11-07 04:11:09,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 04:11:09,706 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-11-07 04:11:09,706 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 04:11:09,706 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 04:11:09,706 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 04:11:09,707 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 04:11:09,707 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 04:11:09,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 04:11:09,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 04:11:09,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 04:11:09,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 04:11:09,708 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 04:11:09,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 04:11:09,708 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 04:11:09,708 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 04:11:09,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 04:11:09,708 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 04:11:09,709 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 04:11:09,709 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 04:11:09,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:11:09,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 04:11:09,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:11:14,634 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:11:14,634 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-11-07 04:11:14,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:11:14 BoogieIcfgContainer [2019-11-07 04:11:14,639 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:11:14,642 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:11:14,642 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:11:14,646 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:11:14,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:11:08" (1/3) ... [2019-11-07 04:11:14,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@745e3ed1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:11:14, skipping insertion in model container [2019-11-07 04:11:14,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:11:09" (2/3) ... [2019-11-07 04:11:14,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@745e3ed1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:11:14, skipping insertion in model container [2019-11-07 04:11:14,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:11:14" (3/3) ... [2019-11-07 04:11:14,651 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product31.cil.c [2019-11-07 04:11:14,662 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:11:14,672 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:11:14,684 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:11:14,733 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:11:14,734 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:11:14,734 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:11:14,734 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:11:14,734 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:11:14,734 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:11:14,734 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:11:14,734 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:11:14,781 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states. [2019-11-07 04:11:14,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-11-07 04:11:14,805 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:11:14,806 INFO L410 BasicCegarLoop]: trace histogram [3, 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] [2019-11-07 04:11:14,808 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:11:14,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:11:14,814 INFO L82 PathProgramCache]: Analyzing trace with hash -93894055, now seen corresponding path program 1 times [2019-11-07 04:11:14,827 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:11:14,829 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174959799] [2019-11-07 04:11:14,829 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:11:15,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:11:15,531 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-11-07 04:11:15,532 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174959799] [2019-11-07 04:11:15,533 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:11:15,533 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 04:11:15,535 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319049696] [2019-11-07 04:11:15,541 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 04:11:15,542 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:11:15,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 04:11:15,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:11:15,560 INFO L87 Difference]: Start difference. First operand 601 states. Second operand 2 states. [2019-11-07 04:11:15,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:11:15,673 INFO L93 Difference]: Finished difference Result 504 states and 742 transitions. [2019-11-07 04:11:15,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 04:11:15,675 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 112 [2019-11-07 04:11:15,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:11:15,698 INFO L225 Difference]: With dead ends: 504 [2019-11-07 04:11:15,698 INFO L226 Difference]: Without dead ends: 470 [2019-11-07 04:11:15,703 INFO L630 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 [2019-11-07 04:11:15,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2019-11-07 04:11:15,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 470. [2019-11-07 04:11:15,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 470 states. [2019-11-07 04:11:15,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 691 transitions. [2019-11-07 04:11:15,801 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 691 transitions. Word has length 112 [2019-11-07 04:11:15,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:11:15,804 INFO L462 AbstractCegarLoop]: Abstraction has 470 states and 691 transitions. [2019-11-07 04:11:15,804 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 04:11:15,804 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 691 transitions. [2019-11-07 04:11:15,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-11-07 04:11:15,813 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:11:15,813 INFO L410 BasicCegarLoop]: trace histogram [3, 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] [2019-11-07 04:11:15,814 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:11:15,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:11:15,814 INFO L82 PathProgramCache]: Analyzing trace with hash -696682179, now seen corresponding path program 1 times [2019-11-07 04:11:15,814 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:11:15,815 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075196399] [2019-11-07 04:11:15,815 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:11:15,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:11:16,219 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-11-07 04:11:16,220 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075196399] [2019-11-07 04:11:16,220 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:11:16,220 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-07 04:11:16,221 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777194537] [2019-11-07 04:11:16,223 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 04:11:16,223 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:11:16,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 04:11:16,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-07 04:11:16,224 INFO L87 Difference]: Start difference. First operand 470 states and 691 transitions. Second operand 7 states. [2019-11-07 04:11:20,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:11:20,437 INFO L93 Difference]: Finished difference Result 1337 states and 2010 transitions. [2019-11-07 04:11:20,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-07 04:11:20,437 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 113 [2019-11-07 04:11:20,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:11:20,447 INFO L225 Difference]: With dead ends: 1337 [2019-11-07 04:11:20,447 INFO L226 Difference]: Without dead ends: 909 [2019-11-07 04:11:20,453 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-11-07 04:11:20,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2019-11-07 04:11:20,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 884. [2019-11-07 04:11:20,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 884 states. [2019-11-07 04:11:20,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 884 states to 884 states and 1325 transitions. [2019-11-07 04:11:20,575 INFO L78 Accepts]: Start accepts. Automaton has 884 states and 1325 transitions. Word has length 113 [2019-11-07 04:11:20,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:11:20,587 INFO L462 AbstractCegarLoop]: Abstraction has 884 states and 1325 transitions. [2019-11-07 04:11:20,587 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 04:11:20,587 INFO L276 IsEmpty]: Start isEmpty. Operand 884 states and 1325 transitions. [2019-11-07 04:11:20,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2019-11-07 04:11:20,598 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:11:20,598 INFO L410 BasicCegarLoop]: trace histogram [3, 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] [2019-11-07 04:11:20,598 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:11:20,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:11:20,599 INFO L82 PathProgramCache]: Analyzing trace with hash 1598354599, now seen corresponding path program 1 times [2019-11-07 04:11:20,599 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:11:20,599 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818150119] [2019-11-07 04:11:20,599 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:11:20,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:11:20,855 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-11-07 04:11:20,855 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818150119] [2019-11-07 04:11:20,856 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:11:20,856 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-07 04:11:20,856 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959209258] [2019-11-07 04:11:20,857 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-07 04:11:20,857 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:11:20,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 04:11:20,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-07 04:11:20,857 INFO L87 Difference]: Start difference. First operand 884 states and 1325 transitions. Second operand 4 states. [2019-11-07 04:11:22,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:11:22,677 INFO L93 Difference]: Finished difference Result 2636 states and 4048 transitions. [2019-11-07 04:11:22,678 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-07 04:11:22,678 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 117 [2019-11-07 04:11:22,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:11:22,692 INFO L225 Difference]: With dead ends: 2636 [2019-11-07 04:11:22,692 INFO L226 Difference]: Without dead ends: 1794 [2019-11-07 04:11:22,697 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-07 04:11:22,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1794 states. [2019-11-07 04:11:22,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1794 to 1696. [2019-11-07 04:11:22,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1696 states. [2019-11-07 04:11:22,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1696 states to 1696 states and 2589 transitions. [2019-11-07 04:11:22,799 INFO L78 Accepts]: Start accepts. Automaton has 1696 states and 2589 transitions. Word has length 117 [2019-11-07 04:11:22,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:11:22,799 INFO L462 AbstractCegarLoop]: Abstraction has 1696 states and 2589 transitions. [2019-11-07 04:11:22,800 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-07 04:11:22,800 INFO L276 IsEmpty]: Start isEmpty. Operand 1696 states and 2589 transitions. [2019-11-07 04:11:22,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2019-11-07 04:11:22,803 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:11:22,803 INFO L410 BasicCegarLoop]: trace histogram [3, 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] [2019-11-07 04:11:22,803 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:11:22,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:11:22,804 INFO L82 PathProgramCache]: Analyzing trace with hash -1991943500, now seen corresponding path program 1 times [2019-11-07 04:11:22,804 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:11:22,804 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549552403] [2019-11-07 04:11:22,804 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:11:22,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:11:22,990 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-11-07 04:11:22,990 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549552403] [2019-11-07 04:11:22,991 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:11:22,991 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-07 04:11:22,991 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948398697] [2019-11-07 04:11:22,992 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-07 04:11:22,992 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:11:22,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 04:11:22,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-07 04:11:22,993 INFO L87 Difference]: Start difference. First operand 1696 states and 2589 transitions. Second operand 4 states. [2019-11-07 04:11:24,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:11:24,898 INFO L93 Difference]: Finished difference Result 5019 states and 7822 transitions. [2019-11-07 04:11:24,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-07 04:11:24,898 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 118 [2019-11-07 04:11:24,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:11:24,936 INFO L225 Difference]: With dead ends: 5019 [2019-11-07 04:11:24,936 INFO L226 Difference]: Without dead ends: 3366 [2019-11-07 04:11:24,949 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-07 04:11:24,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3366 states. [2019-11-07 04:11:25,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3366 to 3245. [2019-11-07 04:11:25,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3245 states. [2019-11-07 04:11:25,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3245 states to 3245 states and 5018 transitions. [2019-11-07 04:11:25,209 INFO L78 Accepts]: Start accepts. Automaton has 3245 states and 5018 transitions. Word has length 118 [2019-11-07 04:11:25,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:11:25,210 INFO L462 AbstractCegarLoop]: Abstraction has 3245 states and 5018 transitions. [2019-11-07 04:11:25,210 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-07 04:11:25,210 INFO L276 IsEmpty]: Start isEmpty. Operand 3245 states and 5018 transitions. [2019-11-07 04:11:25,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-11-07 04:11:25,215 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:11:25,216 INFO L410 BasicCegarLoop]: trace histogram [3, 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] [2019-11-07 04:11:25,216 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:11:25,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:11:25,217 INFO L82 PathProgramCache]: Analyzing trace with hash -1622030967, now seen corresponding path program 1 times [2019-11-07 04:11:25,217 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:11:25,217 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647322838] [2019-11-07 04:11:25,217 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:11:25,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:11:25,431 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-11-07 04:11:25,431 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647322838] [2019-11-07 04:11:25,432 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:11:25,432 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-07 04:11:25,432 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106229277] [2019-11-07 04:11:25,433 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-07 04:11:25,433 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:11:25,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 04:11:25,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-07 04:11:25,434 INFO L87 Difference]: Start difference. First operand 3245 states and 5018 transitions. Second operand 4 states. [2019-11-07 04:11:27,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:11:27,520 INFO L93 Difference]: Finished difference Result 9718 states and 15446 transitions. [2019-11-07 04:11:27,521 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-07 04:11:27,521 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 119 [2019-11-07 04:11:27,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:11:27,580 INFO L225 Difference]: With dead ends: 9718 [2019-11-07 04:11:27,581 INFO L226 Difference]: Without dead ends: 6518 [2019-11-07 04:11:27,601 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-07 04:11:27,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6518 states. [2019-11-07 04:11:28,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6518 to 6352. [2019-11-07 04:11:28,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6352 states. [2019-11-07 04:11:28,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6352 states to 6352 states and 9992 transitions. [2019-11-07 04:11:28,131 INFO L78 Accepts]: Start accepts. Automaton has 6352 states and 9992 transitions. Word has length 119 [2019-11-07 04:11:28,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:11:28,135 INFO L462 AbstractCegarLoop]: Abstraction has 6352 states and 9992 transitions. [2019-11-07 04:11:28,135 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-07 04:11:28,135 INFO L276 IsEmpty]: Start isEmpty. Operand 6352 states and 9992 transitions. [2019-11-07 04:11:28,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2019-11-07 04:11:28,146 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:11:28,147 INFO L410 BasicCegarLoop]: trace histogram [3, 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] [2019-11-07 04:11:28,147 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:11:28,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:11:28,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1255326870, now seen corresponding path program 1 times [2019-11-07 04:11:28,149 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:11:28,149 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885899137] [2019-11-07 04:11:28,149 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:11:28,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:11:28,351 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-11-07 04:11:28,352 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885899137] [2019-11-07 04:11:28,355 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:11:28,356 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-07 04:11:28,356 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239154333] [2019-11-07 04:11:28,356 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-07 04:11:28,357 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:11:28,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 04:11:28,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-07 04:11:28,357 INFO L87 Difference]: Start difference. First operand 6352 states and 9992 transitions. Second operand 4 states. [2019-11-07 04:11:30,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:11:30,547 INFO L93 Difference]: Finished difference Result 19141 states and 31425 transitions. [2019-11-07 04:11:30,547 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-07 04:11:30,547 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 120 [2019-11-07 04:11:30,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:11:30,648 INFO L225 Difference]: With dead ends: 19141 [2019-11-07 04:11:30,648 INFO L226 Difference]: Without dead ends: 12838 [2019-11-07 04:11:30,694 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-07 04:11:30,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12838 states. [2019-11-07 04:11:31,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12838 to 12583. [2019-11-07 04:11:31,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12583 states. [2019-11-07 04:11:31,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12583 states to 12583 states and 20350 transitions. [2019-11-07 04:11:31,526 INFO L78 Accepts]: Start accepts. Automaton has 12583 states and 20350 transitions. Word has length 120 [2019-11-07 04:11:31,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:11:31,527 INFO L462 AbstractCegarLoop]: Abstraction has 12583 states and 20350 transitions. [2019-11-07 04:11:31,527 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-07 04:11:31,527 INFO L276 IsEmpty]: Start isEmpty. Operand 12583 states and 20350 transitions. [2019-11-07 04:11:31,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2019-11-07 04:11:31,530 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:11:31,531 INFO L410 BasicCegarLoop]: trace histogram [3, 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] [2019-11-07 04:11:31,531 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:11:31,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:11:31,531 INFO L82 PathProgramCache]: Analyzing trace with hash 259110507, now seen corresponding path program 1 times [2019-11-07 04:11:31,532 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:11:31,532 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892171595] [2019-11-07 04:11:31,532 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:11:31,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:11:31,701 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-11-07 04:11:31,701 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892171595] [2019-11-07 04:11:31,702 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:11:31,702 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-07 04:11:31,702 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514045267] [2019-11-07 04:11:31,703 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-07 04:11:31,703 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:11:31,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 04:11:31,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-07 04:11:31,704 INFO L87 Difference]: Start difference. First operand 12583 states and 20350 transitions. Second operand 4 states. [2019-11-07 04:11:35,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:11:35,352 INFO L93 Difference]: Finished difference Result 38064 states and 66025 transitions. [2019-11-07 04:11:35,352 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-07 04:11:35,352 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 121 [2019-11-07 04:11:35,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:11:35,537 INFO L225 Difference]: With dead ends: 38064 [2019-11-07 04:11:35,537 INFO L226 Difference]: Without dead ends: 25526 [2019-11-07 04:11:35,602 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-07 04:11:35,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25526 states. [2019-11-07 04:11:37,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25526 to 24944. [2019-11-07 04:11:37,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24944 states. [2019-11-07 04:11:37,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24944 states to 24944 states and 41969 transitions. [2019-11-07 04:11:37,273 INFO L78 Accepts]: Start accepts. Automaton has 24944 states and 41969 transitions. Word has length 121 [2019-11-07 04:11:37,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:11:37,273 INFO L462 AbstractCegarLoop]: Abstraction has 24944 states and 41969 transitions. [2019-11-07 04:11:37,274 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-07 04:11:37,274 INFO L276 IsEmpty]: Start isEmpty. Operand 24944 states and 41969 transitions. [2019-11-07 04:11:37,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-11-07 04:11:37,282 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:11:37,282 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:11:37,283 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:11:37,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:11:37,283 INFO L82 PathProgramCache]: Analyzing trace with hash -247215098, now seen corresponding path program 1 times [2019-11-07 04:11:37,283 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:11:37,283 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155896601] [2019-11-07 04:11:37,284 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:11:37,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:11:37,497 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2019-11-07 04:11:37,498 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155896601] [2019-11-07 04:11:37,498 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:11:37,498 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 04:11:37,498 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571834081] [2019-11-07 04:11:37,501 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 04:11:37,501 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:11:37,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 04:11:37,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 04:11:37,502 INFO L87 Difference]: Start difference. First operand 24944 states and 41969 transitions. Second operand 5 states.