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_product11.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:13:55,757 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:13:55,759 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:13:55,778 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:13:55,778 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:13:55,780 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:13:55,782 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:13:55,791 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:13:55,796 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:13:55,798 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:13:55,800 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:13:55,801 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:13:55,801 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:13:55,803 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:13:55,805 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:13:55,807 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:13:55,808 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:13:55,810 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:13:55,811 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:13:55,813 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:13:55,814 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:13:55,815 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:13:55,816 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:13:55,817 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:13:55,818 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:13:55,819 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:13:55,819 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:13:55,820 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:13:55,820 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:13:55,821 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:13:55,821 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:13:55,822 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:13:55,822 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:13:55,823 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:13:55,824 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:13:55,824 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:13:55,825 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:13:55,825 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:13:55,825 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:13:55,826 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:13:55,827 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:13:55,827 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 [2019-10-07 14:13:55,841 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:13:55,842 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:13:55,843 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:13:55,843 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:13:55,843 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:13:55,843 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:13:55,844 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:13:55,844 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:13:55,844 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:13:55,844 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:13:55,844 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:13:55,844 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:13:55,845 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:13:55,845 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:13:55,845 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:13:55,845 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:13:55,845 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:13:55,846 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:13:55,846 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:13:55,846 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:13:55,846 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:13:55,846 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:13:55,847 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:13:55,847 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:13:55,847 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:13:55,847 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:13:55,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:13:55,848 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:13:55,848 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 [2019-10-07 14:13:56,145 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:13:56,158 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:13:56,162 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:13:56,163 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:13:56,164 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:13:56,164 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec2_product11.cil.c [2019-10-07 14:13:56,240 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca27d3d61/2735c17664df4166a54aa76dcecd1add/FLAG9945d546b [2019-10-07 14:13:56,894 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:13:56,895 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product11.cil.c [2019-10-07 14:13:56,924 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca27d3d61/2735c17664df4166a54aa76dcecd1add/FLAG9945d546b [2019-10-07 14:13:57,144 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca27d3d61/2735c17664df4166a54aa76dcecd1add [2019-10-07 14:13:57,155 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:13:57,156 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:13:57,157 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:13:57,158 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:13:57,162 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:13:57,163 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:13:57" (1/1) ... [2019-10-07 14:13:57,166 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bd64945 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:13:57, skipping insertion in model container [2019-10-07 14:13:57,167 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:13:57" (1/1) ... [2019-10-07 14:13:57,176 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:13:57,283 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:13:58,015 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:13:58,040 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:13:58,208 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:13:58,298 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:13:58,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:13:58 WrapperNode [2019-10-07 14:13:58,299 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:13:58,300 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:13:58,300 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:13:58,300 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:13:58,315 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:13:58" (1/1) ... [2019-10-07 14:13:58,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:13:58" (1/1) ... [2019-10-07 14:13:58,362 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:13:58" (1/1) ... [2019-10-07 14:13:58,363 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:13:58" (1/1) ... [2019-10-07 14:13:58,416 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:13:58" (1/1) ... [2019-10-07 14:13:58,460 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:13:58" (1/1) ... [2019-10-07 14:13:58,482 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:13:58" (1/1) ... [2019-10-07 14:13:58,508 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:13:58,508 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:13:58,508 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:13:58,509 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:13:58,514 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:13:58" (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 [2019-10-07 14:13:58,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:13:58,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:13:58,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:13:58,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:13:58,578 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-07 14:13:58,579 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-07 14:13:58,579 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-07 14:13:58,579 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-07 14:13:58,579 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-07 14:13:58,579 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-07 14:13:58,580 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-07 14:13:58,580 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-07 14:13:58,580 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-07 14:13:58,580 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-07 14:13:58,581 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-07 14:13:58,581 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-07 14:13:58,581 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-07 14:13:58,581 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-07 14:13:58,582 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:13:58,582 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-07 14:13:58,582 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:13:58,584 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-07 14:13:58,584 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-07 14:13:58,584 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-07 14:13:58,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:13:58,586 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:13:58,586 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:13:58,586 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:13:58,587 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:13:58,587 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:13:58,587 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-07 14:13:58,587 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-07 14:13:58,588 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-07 14:13:58,588 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-07 14:13:58,588 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-07 14:13:58,588 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-07 14:13:58,588 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-07 14:13:58,588 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-07 14:13:58,589 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-07 14:13:58,589 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-07 14:13:58,589 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-07 14:13:58,589 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-07 14:13:58,589 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-07 14:13:58,590 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-07 14:13:58,590 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-07 14:13:58,590 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2019-10-07 14:13:58,591 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-07 14:13:58,591 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-07 14:13:58,591 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-07 14:13:58,591 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-10-07 14:13:58,591 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-07 14:13:58,591 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-07 14:13:58,592 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-07 14:13:58,592 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-07 14:13:58,592 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-07 14:13:58,592 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-07 14:13:58,592 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2019-10-07 14:13:58,593 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2019-10-07 14:13:58,593 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-07 14:13:58,593 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-07 14:13:58,594 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-10-07 14:13:58,594 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-10-07 14:13:58,594 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__3 [2019-10-07 14:13:58,594 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__4 [2019-10-07 14:13:58,594 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-07 14:13:58,595 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-07 14:13:58,595 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-07 14:13:58,595 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-07 14:13:58,595 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-07 14:13:58,595 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-07 14:13:58,596 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-07 14:13:58,596 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-07 14:13:58,596 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:13:58,597 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:13:58,597 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:13:58,597 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:13:58,598 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:13:58,598 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:13:58,598 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:13:58,599 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:13:58,600 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-07 14:13:58,600 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-07 14:13:58,600 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-07 14:13:58,600 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-07 14:13:58,600 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-07 14:13:58,601 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-07 14:13:58,601 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-07 14:13:58,602 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-07 14:13:58,602 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-07 14:13:58,602 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-07 14:13:58,602 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-07 14:13:58,602 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-07 14:13:58,603 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-07 14:13:58,603 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-07 14:13:58,603 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-07 14:13:58,603 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-07 14:13:58,603 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-07 14:13:58,603 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-07 14:13:58,604 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-07 14:13:58,604 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-07 14:13:58,604 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-07 14:13:58,604 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-07 14:13:58,604 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:13:58,604 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-10-07 14:13:58,605 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__4 [2019-10-07 14:13:58,605 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:13:58,605 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-07 14:13:58,605 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:13:58,605 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:13:58,606 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:13:58,606 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:13:58,606 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-07 14:13:58,606 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-07 14:13:58,606 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:13:58,607 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:13:58,607 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:13:58,607 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:13:58,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:13:58,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:13:58,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:13:58,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:13:58,608 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:13:58,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:13:58,609 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:13:58,611 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:13:58,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:13:58,611 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:13:58,611 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:13:58,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:13:58,612 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:13:58,612 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:13:58,612 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-07 14:13:58,613 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-07 14:13:58,614 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-07 14:13:58,617 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-07 14:13:58,617 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-07 14:13:58,617 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-07 14:13:58,617 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-07 14:13:58,618 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-07 14:13:58,618 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-07 14:13:58,618 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-07 14:13:58,619 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-07 14:13:58,619 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-07 14:13:58,619 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-07 14:13:58,626 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2019-10-07 14:13:58,626 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2019-10-07 14:13:58,627 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-07 14:13:58,627 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-07 14:13:58,627 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-10-07 14:13:58,627 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-07 14:13:58,627 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-07 14:13:58,627 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-07 14:13:58,628 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-07 14:13:58,628 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2019-10-07 14:13:58,628 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-07 14:13:58,629 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-07 14:13:58,629 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-10-07 14:13:58,629 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-07 14:13:58,629 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-07 14:13:58,630 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-07 14:13:58,630 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__3 [2019-10-07 14:13:58,630 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-07 14:13:58,630 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-07 14:13:58,630 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-07 14:13:58,630 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-07 14:13:58,631 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:13:58,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:13:58,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:13:58,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:14:03,305 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:14:03,306 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-07 14:14:03,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:14:03 BoogieIcfgContainer [2019-10-07 14:14:03,310 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:14:03,311 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:14:03,311 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:14:03,314 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:14:03,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:13:57" (1/3) ... [2019-10-07 14:14:03,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@116fbc4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:14:03, skipping insertion in model container [2019-10-07 14:14:03,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:13:58" (2/3) ... [2019-10-07 14:14:03,316 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@116fbc4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:14:03, skipping insertion in model container [2019-10-07 14:14:03,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:14:03" (3/3) ... [2019-10-07 14:14:03,318 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product11.cil.c [2019-10-07 14:14:03,328 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:14:03,340 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:14:03,352 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:14:03,399 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:14:03,399 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:14:03,399 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:14:03,400 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:14:03,400 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:14:03,400 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:14:03,400 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:14:03,400 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:14:03,433 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states. [2019-10-07 14:14:03,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-10-07 14:14:03,457 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:14:03,459 INFO L385 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] [2019-10-07 14:14:03,461 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:14:03,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:14:03,467 INFO L82 PathProgramCache]: Analyzing trace with hash -977747574, now seen corresponding path program 1 times [2019-10-07 14:14:03,476 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:14:03,476 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:14:03,477 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:14:03,477 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:14:03,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:14:03,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:14:04,099 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:14:04,100 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:14:04,102 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:14:04,102 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 14:14:04,108 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 14:14:04,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 14:14:04,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:14:04,126 INFO L87 Difference]: Start difference. First operand 564 states. Second operand 2 states. [2019-10-07 14:14:04,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:14:04,243 INFO L93 Difference]: Finished difference Result 467 states and 697 transitions. [2019-10-07 14:14:04,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 14:14:04,245 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 112 [2019-10-07 14:14:04,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:14:04,278 INFO L225 Difference]: With dead ends: 467 [2019-10-07 14:14:04,279 INFO L226 Difference]: Without dead ends: 433 [2019-10-07 14:14:04,287 INFO L606 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 [2019-10-07 14:14:04,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2019-10-07 14:14:04,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 433. [2019-10-07 14:14:04,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 433 states. [2019-10-07 14:14:04,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 646 transitions. [2019-10-07 14:14:04,407 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 646 transitions. Word has length 112 [2019-10-07 14:14:04,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:14:04,410 INFO L462 AbstractCegarLoop]: Abstraction has 433 states and 646 transitions. [2019-10-07 14:14:04,410 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 14:14:04,410 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 646 transitions. [2019-10-07 14:14:04,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-10-07 14:14:04,419 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:14:04,419 INFO L385 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] [2019-10-07 14:14:04,419 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:14:04,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:14:04,420 INFO L82 PathProgramCache]: Analyzing trace with hash -1340082542, now seen corresponding path program 1 times [2019-10-07 14:14:04,420 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:14:04,420 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:14:04,420 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:14:04,421 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:14:04,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:14:04,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:14:04,761 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:14:04,762 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:14:04,762 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:14:04,762 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 14:14:04,764 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:14:04,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:14:04,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:14:04,765 INFO L87 Difference]: Start difference. First operand 433 states and 646 transitions. Second operand 7 states. [2019-10-07 14:14:08,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:14:08,375 INFO L93 Difference]: Finished difference Result 1226 states and 1875 transitions. [2019-10-07 14:14:08,376 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-07 14:14:08,376 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 113 [2019-10-07 14:14:08,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:14:08,386 INFO L225 Difference]: With dead ends: 1226 [2019-10-07 14:14:08,386 INFO L226 Difference]: Without dead ends: 835 [2019-10-07 14:14:08,393 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-10-07 14:14:08,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2019-10-07 14:14:08,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 810. [2019-10-07 14:14:08,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 810 states. [2019-10-07 14:14:08,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 810 states to 810 states and 1235 transitions. [2019-10-07 14:14:08,470 INFO L78 Accepts]: Start accepts. Automaton has 810 states and 1235 transitions. Word has length 113 [2019-10-07 14:14:08,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:14:08,471 INFO L462 AbstractCegarLoop]: Abstraction has 810 states and 1235 transitions. [2019-10-07 14:14:08,471 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:14:08,471 INFO L276 IsEmpty]: Start isEmpty. Operand 810 states and 1235 transitions. [2019-10-07 14:14:08,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2019-10-07 14:14:08,477 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:14:08,477 INFO L385 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] [2019-10-07 14:14:08,478 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:14:08,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:14:08,478 INFO L82 PathProgramCache]: Analyzing trace with hash -1965967932, now seen corresponding path program 1 times [2019-10-07 14:14:08,478 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:14:08,478 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:14:08,479 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:14:08,479 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:14:08,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:14:08,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:14:08,670 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:14:08,671 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:14:08,671 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:14:08,671 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 14:14:08,672 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:14:08,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:14:08,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 14:14:08,673 INFO L87 Difference]: Start difference. First operand 810 states and 1235 transitions. Second operand 4 states. [2019-10-07 14:14:10,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:14:10,221 INFO L93 Difference]: Finished difference Result 2424 states and 3790 transitions. [2019-10-07 14:14:10,221 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:14:10,221 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 117 [2019-10-07 14:14:10,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:14:10,243 INFO L225 Difference]: With dead ends: 2424 [2019-10-07 14:14:10,244 INFO L226 Difference]: Without dead ends: 1656 [2019-10-07 14:14:10,251 INFO L606 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 [2019-10-07 14:14:10,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1656 states. [2019-10-07 14:14:10,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1656 to 1558. [2019-10-07 14:14:10,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1558 states. [2019-10-07 14:14:10,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1558 states to 1558 states and 2421 transitions. [2019-10-07 14:14:10,409 INFO L78 Accepts]: Start accepts. Automaton has 1558 states and 2421 transitions. Word has length 117 [2019-10-07 14:14:10,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:14:10,411 INFO L462 AbstractCegarLoop]: Abstraction has 1558 states and 2421 transitions. [2019-10-07 14:14:10,411 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:14:10,411 INFO L276 IsEmpty]: Start isEmpty. Operand 1558 states and 2421 transitions. [2019-10-07 14:14:10,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2019-10-07 14:14:10,418 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:14:10,418 INFO L385 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] [2019-10-07 14:14:10,418 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:14:10,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:14:10,419 INFO L82 PathProgramCache]: Analyzing trace with hash -816771845, now seen corresponding path program 1 times [2019-10-07 14:14:10,419 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:14:10,419 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:14:10,420 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:14:10,420 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:14:10,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:14:10,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:14:10,680 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:14:10,680 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:14:10,681 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:14:10,681 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 14:14:10,682 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:14:10,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:14:10,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 14:14:10,682 INFO L87 Difference]: Start difference. First operand 1558 states and 2421 transitions. Second operand 4 states. [2019-10-07 14:14:12,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:14:12,537 INFO L93 Difference]: Finished difference Result 4615 states and 7330 transitions. [2019-10-07 14:14:12,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:14:12,538 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 118 [2019-10-07 14:14:12,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:14:12,562 INFO L225 Difference]: With dead ends: 4615 [2019-10-07 14:14:12,562 INFO L226 Difference]: Without dead ends: 3100 [2019-10-07 14:14:12,571 INFO L606 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 [2019-10-07 14:14:12,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3100 states. [2019-10-07 14:14:12,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3100 to 2979. [2019-10-07 14:14:12,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2979 states. [2019-10-07 14:14:12,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2979 states to 2979 states and 4694 transitions. [2019-10-07 14:14:12,749 INFO L78 Accepts]: Start accepts. Automaton has 2979 states and 4694 transitions. Word has length 118 [2019-10-07 14:14:12,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:14:12,750 INFO L462 AbstractCegarLoop]: Abstraction has 2979 states and 4694 transitions. [2019-10-07 14:14:12,750 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:14:12,750 INFO L276 IsEmpty]: Start isEmpty. Operand 2979 states and 4694 transitions. [2019-10-07 14:14:12,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-10-07 14:14:12,754 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:14:12,754 INFO L385 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] [2019-10-07 14:14:12,754 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:14:12,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:14:12,755 INFO L82 PathProgramCache]: Analyzing trace with hash 448572390, now seen corresponding path program 1 times [2019-10-07 14:14:12,755 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:14:12,755 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:14:12,755 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:14:12,755 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:14:12,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:14:12,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:14:12,899 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:14:12,899 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:14:12,899 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:14:12,900 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 14:14:12,900 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:14:12,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:14:12,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 14:14:12,901 INFO L87 Difference]: Start difference. First operand 2979 states and 4694 transitions. Second operand 4 states. [2019-10-07 14:14:14,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:14:14,802 INFO L93 Difference]: Finished difference Result 8930 states and 14486 transitions. [2019-10-07 14:14:14,803 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:14:14,803 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 119 [2019-10-07 14:14:14,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:14:14,852 INFO L225 Difference]: With dead ends: 8930 [2019-10-07 14:14:14,853 INFO L226 Difference]: Without dead ends: 5996 [2019-10-07 14:14:14,870 INFO L606 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 [2019-10-07 14:14:14,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5996 states. [2019-10-07 14:14:15,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5996 to 5830. [2019-10-07 14:14:15,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5830 states. [2019-10-07 14:14:15,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5830 states to 5830 states and 9356 transitions. [2019-10-07 14:14:15,272 INFO L78 Accepts]: Start accepts. Automaton has 5830 states and 9356 transitions. Word has length 119 [2019-10-07 14:14:15,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:14:15,274 INFO L462 AbstractCegarLoop]: Abstraction has 5830 states and 9356 transitions. [2019-10-07 14:14:15,275 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:14:15,275 INFO L276 IsEmpty]: Start isEmpty. Operand 5830 states and 9356 transitions. [2019-10-07 14:14:15,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2019-10-07 14:14:15,280 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:14:15,281 INFO L385 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] [2019-10-07 14:14:15,281 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:14:15,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:14:15,282 INFO L82 PathProgramCache]: Analyzing trace with hash 1019541917, now seen corresponding path program 1 times [2019-10-07 14:14:15,282 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:14:15,282 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:14:15,283 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:14:15,284 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:14:15,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:14:15,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:14:15,534 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:14:15,536 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:14:15,537 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:14:15,537 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 14:14:15,539 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:14:15,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:14:15,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 14:14:15,540 INFO L87 Difference]: Start difference. First operand 5830 states and 9356 transitions. Second operand 4 states. [2019-10-07 14:14:17,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:14:17,596 INFO L93 Difference]: Finished difference Result 17585 states and 29529 transitions. [2019-10-07 14:14:17,596 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:14:17,597 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 120 [2019-10-07 14:14:17,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:14:17,723 INFO L225 Difference]: With dead ends: 17585 [2019-10-07 14:14:17,724 INFO L226 Difference]: Without dead ends: 11804 [2019-10-07 14:14:17,761 INFO L606 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 [2019-10-07 14:14:17,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11804 states. [2019-10-07 14:14:18,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11804 to 11549. [2019-10-07 14:14:18,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11549 states. [2019-10-07 14:14:18,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11549 states to 11549 states and 19090 transitions. [2019-10-07 14:14:18,733 INFO L78 Accepts]: Start accepts. Automaton has 11549 states and 19090 transitions. Word has length 120 [2019-10-07 14:14:18,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:14:18,733 INFO L462 AbstractCegarLoop]: Abstraction has 11549 states and 19090 transitions. [2019-10-07 14:14:18,734 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:14:18,734 INFO L276 IsEmpty]: Start isEmpty. Operand 11549 states and 19090 transitions. [2019-10-07 14:14:18,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2019-10-07 14:14:18,737 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:14:18,737 INFO L385 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] [2019-10-07 14:14:18,738 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:14:18,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:14:18,738 INFO L82 PathProgramCache]: Analyzing trace with hash 1539731976, now seen corresponding path program 1 times [2019-10-07 14:14:18,738 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:14:18,738 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:14:18,739 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:14:18,739 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:14:18,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:14:18,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:14:18,906 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:14:18,907 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:14:18,907 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:14:18,907 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 14:14:18,908 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:14:18,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:14:18,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 14:14:18,909 INFO L87 Difference]: Start difference. First operand 11549 states and 19090 transitions. Second operand 4 states. [2019-10-07 14:14:21,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:14:21,547 INFO L93 Difference]: Finished difference Result 34972 states and 62257 transitions. [2019-10-07 14:14:21,548 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:14:21,548 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 121 [2019-10-07 14:14:21,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:14:21,737 INFO L225 Difference]: With dead ends: 34972 [2019-10-07 14:14:21,737 INFO L226 Difference]: Without dead ends: 23468 [2019-10-07 14:14:21,805 INFO L606 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 [2019-10-07 14:14:21,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23468 states. [2019-10-07 14:14:23,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23468 to 22886. [2019-10-07 14:14:23,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22886 states. [2019-10-07 14:14:23,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22886 states to 22886 states and 39461 transitions. [2019-10-07 14:14:23,424 INFO L78 Accepts]: Start accepts. Automaton has 22886 states and 39461 transitions. Word has length 121 [2019-10-07 14:14:23,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:14:23,427 INFO L462 AbstractCegarLoop]: Abstraction has 22886 states and 39461 transitions. [2019-10-07 14:14:23,427 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:14:23,427 INFO L276 IsEmpty]: Start isEmpty. Operand 22886 states and 39461 transitions. [2019-10-07 14:14:23,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-10-07 14:14:23,434 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:14:23,435 INFO L385 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] [2019-10-07 14:14:23,435 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:14:23,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:14:23,436 INFO L82 PathProgramCache]: Analyzing trace with hash -1356193321, now seen corresponding path program 1 times [2019-10-07 14:14:23,436 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:14:23,436 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:14:23,436 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:14:23,436 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:14:23,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:14:23,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:14:23,672 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2019-10-07 14:14:23,672 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:14:23,673 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:14:23,673 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 14:14:23,674 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 14:14:23,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 14:14:23,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:14:23,675 INFO L87 Difference]: Start difference. First operand 22886 states and 39461 transitions. Second operand 5 states. [2019-10-07 14:14:24,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:14:24,956 INFO L93 Difference]: Finished difference Result 46151 states and 82613 transitions. [2019-10-07 14:14:24,957 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:14:24,957 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 174 [2019-10-07 14:14:24,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:14:25,137 INFO L225 Difference]: With dead ends: 46151 [2019-10-07 14:14:25,137 INFO L226 Difference]: Without dead ends: 23308 [2019-10-07 14:14:25,215 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:14:25,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23308 states. [2019-10-07 14:14:27,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23308 to 23158. [2019-10-07 14:14:27,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23158 states. [2019-10-07 14:14:27,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23158 states to 23158 states and 39976 transitions. [2019-10-07 14:14:27,922 INFO L78 Accepts]: Start accepts. Automaton has 23158 states and 39976 transitions. Word has length 174 [2019-10-07 14:14:27,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:14:27,922 INFO L462 AbstractCegarLoop]: Abstraction has 23158 states and 39976 transitions. [2019-10-07 14:14:27,923 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 14:14:27,923 INFO L276 IsEmpty]: Start isEmpty. Operand 23158 states and 39976 transitions. [2019-10-07 14:14:27,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2019-10-07 14:14:27,931 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:14:27,931 INFO L385 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] [2019-10-07 14:14:27,931 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:14:27,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:14:27,932 INFO L82 PathProgramCache]: Analyzing trace with hash 1329504084, now seen corresponding path program 1 times [2019-10-07 14:14:27,932 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:14:27,932 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:14:27,932 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:14:27,933 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:14:27,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:14:28,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:14:28,189 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2019-10-07 14:14:28,190 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:14:28,190 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:14:28,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:14:28,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:14:28,805 INFO L256 TraceCheckSpWp]: Trace formula consists of 3337 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:14:28,833 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:14:28,922 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-10-07 14:14:28,922 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:14:29,560 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2019-10-07 14:14:29,561 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:14:29,561 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 4] total 10 [2019-10-07 14:14:29,563 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:14:29,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:14:29,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:14:29,564 INFO L87 Difference]: Start difference. First operand 23158 states and 39976 transitions. Second operand 4 states. [2019-10-07 14:14:31,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:14:31,007 INFO L93 Difference]: Finished difference Result 48769 states and 87640 transitions. [2019-10-07 14:14:31,007 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:14:31,007 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 179 [2019-10-07 14:14:31,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:14:31,299 INFO L225 Difference]: With dead ends: 48769 [2019-10-07 14:14:31,300 INFO L226 Difference]: Without dead ends: 25654 [2019-10-07 14:14:31,443 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 357 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2019-10-07 14:14:31,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25654 states. [2019-10-07 14:14:33,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25654 to 25654. [2019-10-07 14:14:33,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25654 states. [2019-10-07 14:14:33,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25654 states to 25654 states and 44648 transitions. [2019-10-07 14:14:33,622 INFO L78 Accepts]: Start accepts. Automaton has 25654 states and 44648 transitions. Word has length 179 [2019-10-07 14:14:33,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:14:33,623 INFO L462 AbstractCegarLoop]: Abstraction has 25654 states and 44648 transitions. [2019-10-07 14:14:33,623 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:14:33,623 INFO L276 IsEmpty]: Start isEmpty. Operand 25654 states and 44648 transitions. [2019-10-07 14:14:33,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2019-10-07 14:14:33,634 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:14:33,634 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 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] [2019-10-07 14:14:33,844 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:14:33,845 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:14:33,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:14:33,845 INFO L82 PathProgramCache]: Analyzing trace with hash 1675638027, now seen corresponding path program 1 times [2019-10-07 14:14:33,845 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:14:33,846 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:14:33,846 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:14:33,846 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:14:33,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:14:33,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:14:34,080 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-10-07 14:14:34,081 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:14:34,081 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:14:34,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:14:34,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:14:34,753 INFO L256 TraceCheckSpWp]: Trace formula consists of 3342 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:14:34,763 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:14:34,808 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2019-10-07 14:14:34,809 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:14:35,253 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-10-07 14:14:35,254 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:14:35,254 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 7 [2019-10-07 14:14:35,255 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:14:35,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:14:35,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:14:35,256 INFO L87 Difference]: Start difference. First operand 25654 states and 44648 transitions. Second operand 4 states. [2019-10-07 14:14:36,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:14:36,692 INFO L93 Difference]: Finished difference Result 53761 states and 96918 transitions. [2019-10-07 14:14:36,693 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:14:36,693 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 184 [2019-10-07 14:14:36,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:14:36,873 INFO L225 Difference]: With dead ends: 53761 [2019-10-07 14:14:36,873 INFO L226 Difference]: Without dead ends: 28150 [2019-10-07 14:14:36,944 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 365 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:14:36,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28150 states. [2019-10-07 14:14:38,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28150 to 28150. [2019-10-07 14:14:38,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28150 states. [2019-10-07 14:14:38,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28150 states to 28150 states and 49320 transitions. [2019-10-07 14:14:38,370 INFO L78 Accepts]: Start accepts. Automaton has 28150 states and 49320 transitions. Word has length 184 [2019-10-07 14:14:38,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:14:38,371 INFO L462 AbstractCegarLoop]: Abstraction has 28150 states and 49320 transitions. [2019-10-07 14:14:38,371 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:14:38,371 INFO L276 IsEmpty]: Start isEmpty. Operand 28150 states and 49320 transitions. [2019-10-07 14:14:39,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2019-10-07 14:14:39,715 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:14:39,715 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 4, 4, 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] [2019-10-07 14:14:39,916 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:14:39,916 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:14:39,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:14:39,916 INFO L82 PathProgramCache]: Analyzing trace with hash -1140019131, now seen corresponding path program 1 times [2019-10-07 14:14:39,917 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:14:39,917 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:14:39,917 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:14:39,917 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:14:39,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:14:40,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:14:40,161 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2019-10-07 14:14:40,162 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:14:40,162 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:14:40,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:14:40,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:14:40,775 INFO L256 TraceCheckSpWp]: Trace formula consists of 3346 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:14:40,783 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:14:40,826 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-07 14:14:40,826 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:14:41,197 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2019-10-07 14:14:41,197 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:14:41,198 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 7 [2019-10-07 14:14:41,198 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:14:41,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:14:41,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:14:41,199 INFO L87 Difference]: Start difference. First operand 28150 states and 49320 transitions. Second operand 4 states. [2019-10-07 14:14:42,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:14:42,622 INFO L93 Difference]: Finished difference Result 58753 states and 106196 transitions. [2019-10-07 14:14:42,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:14:42,623 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 188 [2019-10-07 14:14:42,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:14:42,820 INFO L225 Difference]: With dead ends: 58753 [2019-10-07 14:14:42,821 INFO L226 Difference]: Without dead ends: 30646 [2019-10-07 14:14:42,930 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 373 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:14:42,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30646 states. [2019-10-07 14:14:45,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30646 to 30646. [2019-10-07 14:14:45,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30646 states. [2019-10-07 14:14:45,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30646 states to 30646 states and 53992 transitions. [2019-10-07 14:14:45,248 INFO L78 Accepts]: Start accepts. Automaton has 30646 states and 53992 transitions. Word has length 188 [2019-10-07 14:14:45,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:14:45,249 INFO L462 AbstractCegarLoop]: Abstraction has 30646 states and 53992 transitions. [2019-10-07 14:14:45,249 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:14:45,249 INFO L276 IsEmpty]: Start isEmpty. Operand 30646 states and 53992 transitions. [2019-10-07 14:14:45,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-10-07 14:14:45,266 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:14:45,266 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 3, 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, 1] [2019-10-07 14:14:45,478 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:14:45,478 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:14:45,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:14:45,479 INFO L82 PathProgramCache]: Analyzing trace with hash 1310333578, now seen corresponding path program 1 times [2019-10-07 14:14:45,479 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:14:45,479 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:14:45,479 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:14:45,480 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:14:45,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:14:45,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:14:45,700 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2019-10-07 14:14:45,700 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:14:45,700 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:14:45,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:14:46,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:14:46,363 INFO L256 TraceCheckSpWp]: Trace formula consists of 3349 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:14:46,369 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:14:46,422 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-10-07 14:14:46,422 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:14:46,793 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2019-10-07 14:14:46,794 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:14:46,794 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 7 [2019-10-07 14:14:46,794 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:14:46,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:14:46,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:14:46,795 INFO L87 Difference]: Start difference. First operand 30646 states and 53992 transitions. Second operand 4 states. [2019-10-07 14:14:48,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:14:48,173 INFO L93 Difference]: Finished difference Result 63745 states and 115474 transitions. [2019-10-07 14:14:48,173 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:14:48,174 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 191 [2019-10-07 14:14:48,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:14:48,327 INFO L225 Difference]: With dead ends: 63745 [2019-10-07 14:14:48,328 INFO L226 Difference]: Without dead ends: 33142 [2019-10-07 14:14:48,400 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 379 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:14:48,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33142 states. [2019-10-07 14:14:49,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33142 to 33142. [2019-10-07 14:14:49,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33142 states. [2019-10-07 14:14:50,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33142 states to 33142 states and 58664 transitions. [2019-10-07 14:14:50,014 INFO L78 Accepts]: Start accepts. Automaton has 33142 states and 58664 transitions. Word has length 191 [2019-10-07 14:14:50,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:14:50,015 INFO L462 AbstractCegarLoop]: Abstraction has 33142 states and 58664 transitions. [2019-10-07 14:14:50,015 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:14:50,015 INFO L276 IsEmpty]: Start isEmpty. Operand 33142 states and 58664 transitions. [2019-10-07 14:14:50,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2019-10-07 14:14:50,027 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:14:50,028 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:14:50,249 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:14:50,249 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:14:50,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:14:50,250 INFO L82 PathProgramCache]: Analyzing trace with hash -1879588356, now seen corresponding path program 1 times [2019-10-07 14:14:50,251 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:14:50,251 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:14:50,251 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:14:50,251 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:14:50,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:14:50,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:14:50,580 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2019-10-07 14:14:50,580 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:14:50,580 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:14:50,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:14:51,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:14:51,545 INFO L256 TraceCheckSpWp]: Trace formula consists of 3345 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-07 14:14:51,556 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:14:51,650 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2019-10-07 14:14:51,650 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:14:52,171 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2019-10-07 14:14:52,172 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:14:52,173 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [9] total 16 [2019-10-07 14:14:52,174 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 14:14:52,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 14:14:52,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2019-10-07 14:14:52,175 INFO L87 Difference]: Start difference. First operand 33142 states and 58664 transitions. Second operand 9 states. [2019-10-07 14:14:54,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:14:54,781 INFO L93 Difference]: Finished difference Result 34548 states and 65623 transitions. [2019-10-07 14:14:54,782 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 14:14:54,782 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 193 [2019-10-07 14:14:54,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:14:54,980 INFO L225 Difference]: With dead ends: 34548 [2019-10-07 14:14:54,980 INFO L226 Difference]: Without dead ends: 34329 [2019-10-07 14:14:55,006 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 383 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2019-10-07 14:14:55,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34329 states. [2019-10-07 14:14:57,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34329 to 33625. [2019-10-07 14:14:57,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33625 states. [2019-10-07 14:14:57,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33625 states to 33625 states and 60982 transitions. [2019-10-07 14:14:57,901 INFO L78 Accepts]: Start accepts. Automaton has 33625 states and 60982 transitions. Word has length 193 [2019-10-07 14:14:57,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:14:57,901 INFO L462 AbstractCegarLoop]: Abstraction has 33625 states and 60982 transitions. [2019-10-07 14:14:57,902 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 14:14:57,902 INFO L276 IsEmpty]: Start isEmpty. Operand 33625 states and 60982 transitions. [2019-10-07 14:14:57,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-10-07 14:14:57,911 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:14:57,912 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:14:58,121 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:14:58,122 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:14:58,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:14:58,122 INFO L82 PathProgramCache]: Analyzing trace with hash 1630005772, now seen corresponding path program 1 times [2019-10-07 14:14:58,123 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:14:58,123 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:14:58,123 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:14:58,123 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:14:58,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:14:58,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:14:58,401 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2019-10-07 14:14:58,402 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:14:58,402 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:14:58,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:14:59,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:14:59,091 INFO L256 TraceCheckSpWp]: Trace formula consists of 3360 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-07 14:14:59,096 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:14:59,155 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2019-10-07 14:14:59,155 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:14:59,682 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2019-10-07 14:14:59,683 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:14:59,683 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [9] total 12 [2019-10-07 14:14:59,685 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 14:14:59,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 14:14:59,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2019-10-07 14:14:59,686 INFO L87 Difference]: Start difference. First operand 33625 states and 60982 transitions. Second operand 5 states. [2019-10-07 14:15:00,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:15:00,823 INFO L93 Difference]: Finished difference Result 33844 states and 61226 transitions. [2019-10-07 14:15:00,824 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 14:15:00,824 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 198 [2019-10-07 14:15:00,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:15:01,027 INFO L225 Difference]: With dead ends: 33844 [2019-10-07 14:15:01,027 INFO L226 Difference]: Without dead ends: 33625 [2019-10-07 14:15:01,056 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 397 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2019-10-07 14:15:01,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33625 states. [2019-10-07 14:15:02,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33625 to 33625. [2019-10-07 14:15:02,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33625 states. [2019-10-07 14:15:02,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33625 states to 33625 states and 60889 transitions. [2019-10-07 14:15:02,883 INFO L78 Accepts]: Start accepts. Automaton has 33625 states and 60889 transitions. Word has length 198 [2019-10-07 14:15:02,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:15:02,884 INFO L462 AbstractCegarLoop]: Abstraction has 33625 states and 60889 transitions. [2019-10-07 14:15:02,884 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 14:15:02,884 INFO L276 IsEmpty]: Start isEmpty. Operand 33625 states and 60889 transitions. [2019-10-07 14:15:02,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2019-10-07 14:15:02,897 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:15:02,897 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:15:03,112 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:15:03,113 INFO L410 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:15:03,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:15:03,113 INFO L82 PathProgramCache]: Analyzing trace with hash 1553447183, now seen corresponding path program 1 times [2019-10-07 14:15:03,113 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:15:03,113 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:15:03,113 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:15:03,113 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:15:03,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:15:03,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:15:03,427 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2019-10-07 14:15:03,427 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:15:03,428 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:15:03,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:15:04,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:15:04,346 INFO L256 TraceCheckSpWp]: Trace formula consists of 3403 conjuncts, 31 conjunts are in the unsatisfiable core [2019-10-07 14:15:04,358 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:15:04,502 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 16 proven. 8 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2019-10-07 14:15:04,503 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:15:05,166 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:15:05,177 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:15:05,186 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:15:05,196 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:15:05,204 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:15:05,212 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:15:05,220 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:15:05,226 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:15:05,390 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2019-10-07 14:15:05,390 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:15:05,436 INFO L162 IcfgInterpreter]: Started Sifa with 177 locations of interest [2019-10-07 14:15:05,437 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:15:05,446 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:15:05,455 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:15:05,455 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:15:52,607 WARN L191 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 760 [2019-10-07 14:15:57,770 WARN L191 SmtUtils]: Spent 2.57 s on a formula simplification. DAG size of input: 405 DAG size of output: 327 [2019-10-07 14:15:58,160 WARN L191 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 846 [2019-10-07 14:15:58,551 WARN L191 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 846 [2019-10-07 14:15:58,799 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 846 [2019-10-07 14:15:59,374 WARN L191 SmtUtils]: Spent 496.00 ms on a formula simplification that was a NOOP. DAG size: 1032 [2019-10-07 14:15:59,882 WARN L191 SmtUtils]: Spent 495.00 ms on a formula simplification that was a NOOP. DAG size: 1032 [2019-10-07 14:16:00,499 WARN L191 SmtUtils]: Spent 613.00 ms on a formula simplification that was a NOOP. DAG size: 1032 [2019-10-07 14:16:01,031 WARN L191 SmtUtils]: Spent 459.00 ms on a formula simplification that was a NOOP. DAG size: 1032 [2019-10-07 14:16:02,009 WARN L191 SmtUtils]: Spent 953.00 ms on a formula simplification. DAG size of input: 1034 DAG size of output: 1032 [2019-10-07 14:16:02,495 WARN L191 SmtUtils]: Spent 482.00 ms on a formula simplification that was a NOOP. DAG size: 1032 [2019-10-07 14:16:03,046 WARN L191 SmtUtils]: Spent 477.00 ms on a formula simplification that was a NOOP. DAG size: 1032 [2019-10-07 14:16:03,655 WARN L191 SmtUtils]: Spent 606.00 ms on a formula simplification that was a NOOP. DAG size: 1032 [2019-10-07 14:16:04,142 WARN L191 SmtUtils]: Spent 484.00 ms on a formula simplification that was a NOOP. DAG size: 1032 [2019-10-07 14:16:04,661 WARN L191 SmtUtils]: Spent 469.00 ms on a formula simplification that was a NOOP. DAG size: 1032 [2019-10-07 14:16:04,679 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 385 for LOIs [2019-10-07 14:16:04,907 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 729 [2019-10-07 14:16:05,025 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 729 [2019-10-07 14:16:05,395 WARN L191 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 915 [2019-10-07 14:16:05,396 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1082 for LOIs [2019-10-07 14:16:05,863 WARN L191 SmtUtils]: Spent 465.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:16:06,464 WARN L191 SmtUtils]: Spent 598.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:16:06,591 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:16:07,374 WARN L191 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:07,851 WARN L191 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:16:08,316 WARN L191 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:16:08,453 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:16:09,243 WARN L191 SmtUtils]: Spent 788.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:09,891 WARN L191 SmtUtils]: Spent 609.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:16:10,366 WARN L191 SmtUtils]: Spent 471.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:16:10,496 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:16:11,279 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:12,091 WARN L191 SmtUtils]: Spent 784.00 ms on a formula simplification. DAG size of input: 1250 DAG size of output: 1082 [2019-10-07 14:16:12,549 WARN L191 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:16:12,898 WARN L191 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:16:13,667 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:14,145 WARN L191 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:16:14,603 WARN L191 SmtUtils]: Spent 455.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:16:14,722 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:16:15,507 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:16,114 WARN L191 SmtUtils]: Spent 604.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:16:16,574 WARN L191 SmtUtils]: Spent 457.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:16:16,693 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:16:17,456 WARN L191 SmtUtils]: Spent 762.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:17,916 WARN L191 SmtUtils]: Spent 457.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:16:18,370 WARN L191 SmtUtils]: Spent 451.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:16:18,491 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:16:19,391 WARN L191 SmtUtils]: Spent 898.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:19,859 WARN L191 SmtUtils]: Spent 464.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:16:20,313 WARN L191 SmtUtils]: Spent 451.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:16:20,438 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:16:21,210 WARN L191 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:21,678 WARN L191 SmtUtils]: Spent 465.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:16:22,127 WARN L191 SmtUtils]: Spent 446.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:16:22,249 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:16:23,130 WARN L191 SmtUtils]: Spent 879.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:23,589 WARN L191 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:16:24,048 WARN L191 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:16:24,170 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:16:24,940 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:25,405 WARN L191 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:16:25,988 WARN L191 SmtUtils]: Spent 580.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:16:26,105 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:16:26,876 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:27,338 WARN L191 SmtUtils]: Spent 459.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:16:27,802 WARN L191 SmtUtils]: Spent 461.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:16:27,924 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:16:28,687 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:29,266 WARN L191 SmtUtils]: Spent 576.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:16:29,720 WARN L191 SmtUtils]: Spent 451.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:16:29,839 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:16:30,612 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:31,475 WARN L191 SmtUtils]: Spent 814.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:32,239 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:32,627 WARN L191 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:16:33,470 WARN L191 SmtUtils]: Spent 840.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:34,865 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:16:35,625 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:35,876 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:16:36,639 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:37,414 WARN L191 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:38,200 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:38,319 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:16:39,200 WARN L191 SmtUtils]: Spent 879.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:40,005 WARN L191 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:16:40,769 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:16:40,900 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:16:41,660 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:16:43,164 WARN L191 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1250 [2019-10-07 14:16:43,925 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:16:44,051 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:16:44,812 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:16:47,444 WARN L191 SmtUtils]: Spent 2.63 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1250 [2019-10-07 14:16:48,197 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:16:48,317 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:16:49,086 WARN L191 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:16:49,860 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:16:50,618 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:16:50,741 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:16:51,512 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:16:52,279 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:16:53,046 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:16:53,175 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:16:53,939 WARN L191 SmtUtils]: Spent 762.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:16:54,731 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:16:55,492 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:16:55,620 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:16:56,392 WARN L191 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:16:57,840 WARN L191 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 1256 DAG size of output: 1252 [2019-10-07 14:16:58,601 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:16:58,731 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:16:59,492 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:17:00,267 WARN L191 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:17:01,030 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:17:01,151 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:17:01,927 WARN L191 SmtUtils]: Spent 774.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:17:03,321 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:17:04,080 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:17:04,224 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:17:04,986 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:17:06,349 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:17:07,108 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:17:07,233 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:17:07,994 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:17:08,764 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:17:09,519 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:17:09,638 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:17:10,395 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:17:12,828 WARN L191 SmtUtils]: Spent 2.40 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1250 [2019-10-07 14:17:13,595 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:17:13,726 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:17:14,488 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:17:15,874 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1252 [2019-10-07 14:17:16,640 WARN L191 SmtUtils]: Spent 762.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:17:16,767 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:17:17,519 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:17:18,813 WARN L191 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1250 [2019-10-07 14:17:19,578 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:17:19,697 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:17:20,538 WARN L191 SmtUtils]: Spent 838.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:17:22,714 WARN L191 SmtUtils]: Spent 2.17 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1250 [2019-10-07 14:17:23,478 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:17:23,604 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:17:24,372 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:17:25,762 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1256 DAG size of output: 1252 [2019-10-07 14:17:26,530 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:17:26,656 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:17:27,444 WARN L191 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:17:28,853 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:17:29,620 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:17:29,745 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:17:30,508 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:17:31,896 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:17:32,663 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:17:32,788 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:17:33,546 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:17:34,333 WARN L191 SmtUtils]: Spent 784.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:17:35,097 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:17:35,215 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:17:35,975 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:17:37,380 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:17:38,144 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:17:38,269 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:17:39,030 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:17:40,423 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:17:41,184 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:17:41,309 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:17:42,075 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:17:42,871 WARN L191 SmtUtils]: Spent 792.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:17:43,634 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:17:43,752 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:17:44,513 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:17:45,325 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:17:46,114 WARN L191 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:17:46,242 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:17:47,011 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:17:48,408 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1252 [2019-10-07 14:17:49,184 WARN L191 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:17:49,310 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:17:50,080 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:17:51,476 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1252 [2019-10-07 14:17:52,272 WARN L191 SmtUtils]: Spent 790.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:17:52,392 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:17:53,177 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:17:54,563 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1250 [2019-10-07 14:17:55,329 WARN L191 SmtUtils]: Spent 762.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:17:55,458 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:17:56,226 WARN L191 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:17:57,619 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1256 DAG size of output: 1252 [2019-10-07 14:17:58,391 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:17:58,516 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:17:59,293 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:18:00,698 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:18:01,468 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:18:01,594 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:18:02,377 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:18:03,765 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:18:04,536 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:18:04,663 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:18:05,447 WARN L191 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:18:06,222 WARN L191 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:18:06,997 WARN L191 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:18:07,120 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:18:07,894 WARN L191 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:18:09,309 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1252 [2019-10-07 14:18:10,095 WARN L191 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:18:10,252 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:18:11,037 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:18:12,373 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1250 [2019-10-07 14:18:13,157 WARN L191 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:18:13,311 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:18:14,083 WARN L191 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:18:15,486 WARN L191 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1250 [2019-10-07 14:18:16,265 WARN L191 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:18:16,391 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:18:17,164 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:18:18,475 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1259 DAG size of output: 1252 [2019-10-07 14:18:19,255 WARN L191 SmtUtils]: Spent 778.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:18:19,384 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:18:20,177 WARN L191 SmtUtils]: Spent 792.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:18:21,492 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1261 DAG size of output: 1254 [2019-10-07 14:18:22,281 WARN L191 SmtUtils]: Spent 786.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:18:22,409 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:18:23,197 WARN L191 SmtUtils]: Spent 786.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:18:24,542 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1261 DAG size of output: 1254 [2019-10-07 14:18:25,314 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:18:25,442 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:18:26,223 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:18:27,545 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1261 DAG size of output: 1254 [2019-10-07 14:18:28,333 WARN L191 SmtUtils]: Spent 784.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:18:28,505 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:18:29,279 WARN L191 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:18:30,790 WARN L191 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:18:31,560 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:18:31,687 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:18:32,451 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:18:33,848 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:18:34,622 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:18:34,746 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:18:35,512 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:18:36,284 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:18:37,044 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:18:37,167 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:18:37,936 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:18:39,380 WARN L191 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1250 [2019-10-07 14:18:40,156 WARN L191 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:18:40,282 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:18:41,055 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:18:42,568 WARN L191 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1250 [2019-10-07 14:18:43,349 WARN L191 SmtUtils]: Spent 778.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:18:43,476 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:18:44,276 WARN L191 SmtUtils]: Spent 798.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:18:45,045 WARN L191 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:18:45,844 WARN L191 SmtUtils]: Spent 795.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:18:45,965 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:18:46,755 WARN L191 SmtUtils]: Spent 787.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:18:48,071 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1259 DAG size of output: 1252 [2019-10-07 14:18:48,865 WARN L191 SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:18:49,022 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:18:49,802 WARN L191 SmtUtils]: Spent 778.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:18:51,211 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:18:51,983 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:18:52,110 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:18:52,874 WARN L191 SmtUtils]: Spent 762.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:18:54,303 WARN L191 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:18:55,081 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:18:55,204 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:18:55,978 WARN L191 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:18:56,754 WARN L191 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:18:57,529 WARN L191 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:18:57,648 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:18:58,435 WARN L191 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:18:59,904 WARN L191 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1252 [2019-10-07 14:19:00,671 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:19:00,812 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:19:01,593 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:19:02,902 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1250 [2019-10-07 14:19:03,681 WARN L191 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:19:03,806 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:19:04,607 WARN L191 SmtUtils]: Spent 799.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:19:06,047 WARN L191 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:19:06,824 WARN L191 SmtUtils]: Spent 774.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:19:06,951 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:19:07,738 WARN L191 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:19:09,159 WARN L191 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:19:09,948 WARN L191 SmtUtils]: Spent 786.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:19:10,072 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:19:10,839 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:19:10,845 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 1104 for LOIs [2019-10-07 14:19:11,341 WARN L191 SmtUtils]: Spent 495.00 ms on a formula simplification that was a NOOP. DAG size: 1104 [2019-10-07 14:19:11,841 WARN L191 SmtUtils]: Spent 497.00 ms on a formula simplification that was a NOOP. DAG size: 1104 [2019-10-07 14:19:11,971 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:19:12,751 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:19:13,299 WARN L191 SmtUtils]: Spent 517.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:19:13,820 WARN L191 SmtUtils]: Spent 518.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:19:13,949 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:19:14,733 WARN L191 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:19:15,690 WARN L191 SmtUtils]: Spent 928.00 ms on a formula simplification. DAG size of input: 1250 DAG size of output: 1114 [2019-10-07 14:19:16,220 WARN L191 SmtUtils]: Spent 527.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:19:16,348 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:19:17,118 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:19:17,636 WARN L191 SmtUtils]: Spent 503.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:19:18,148 WARN L191 SmtUtils]: Spent 510.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:19:18,266 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:19:19,029 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:19:19,534 WARN L191 SmtUtils]: Spent 502.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:19:20,048 WARN L191 SmtUtils]: Spent 511.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:19:20,165 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:19:20,917 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:19:21,415 WARN L191 SmtUtils]: Spent 496.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:19:21,928 WARN L191 SmtUtils]: Spent 510.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:19:22,045 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:19:22,798 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:19:23,065 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:19:23,066 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 14:19:23,072 INFO L168 Benchmark]: Toolchain (without parser) took 325916.05 ms. Allocated memory was 142.6 MB in the beginning and 3.2 GB in the end (delta: 3.1 GB). Free memory was 97.7 MB in the beginning and 440.2 MB in the end (delta: -342.5 MB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. [2019-10-07 14:19:23,073 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 142.6 MB. Free memory was 119.0 MB in the beginning and 118.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-07 14:19:23,073 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1141.91 ms. Allocated memory was 142.6 MB in the beginning and 199.8 MB in the end (delta: 57.1 MB). Free memory was 97.5 MB in the beginning and 140.4 MB in the end (delta: -42.9 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. [2019-10-07 14:19:23,074 INFO L168 Benchmark]: Boogie Preprocessor took 208.18 ms. Allocated memory is still 199.8 MB. Free memory was 140.4 MB in the beginning and 130.8 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2019-10-07 14:19:23,074 INFO L168 Benchmark]: RCFGBuilder took 4801.74 ms. Allocated memory was 199.8 MB in the beginning and 315.6 MB in the end (delta: 115.9 MB). Free memory was 130.8 MB in the beginning and 79.3 MB in the end (delta: 51.5 MB). Peak memory consumption was 167.3 MB. Max. memory is 7.1 GB. [2019-10-07 14:19:23,075 INFO L168 Benchmark]: TraceAbstraction took 319759.62 ms. Allocated memory was 315.6 MB in the beginning and 3.2 GB in the end (delta: 2.9 GB). Free memory was 79.3 MB in the beginning and 440.2 MB in the end (delta: -360.9 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2019-10-07 14:19:23,088 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 142.6 MB. Free memory was 119.0 MB in the beginning and 118.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1141.91 ms. Allocated memory was 142.6 MB in the beginning and 199.8 MB in the end (delta: 57.1 MB). Free memory was 97.5 MB in the beginning and 140.4 MB in the end (delta: -42.9 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 208.18 ms. Allocated memory is still 199.8 MB. Free memory was 140.4 MB in the beginning and 130.8 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4801.74 ms. Allocated memory was 199.8 MB in the beginning and 315.6 MB in the end (delta: 115.9 MB). Free memory was 130.8 MB in the beginning and 79.3 MB in the end (delta: 51.5 MB). Peak memory consumption was 167.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 319759.62 ms. Allocated memory was 315.6 MB in the beginning and 3.2 GB in the end (delta: 2.9 GB). Free memory was 79.3 MB in the beginning and 440.2 MB in the end (delta: -360.9 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...