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_spec13_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 13:58:44,667 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 13:58:44,670 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 13:58:44,689 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 13:58:44,690 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 13:58:44,692 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 13:58:44,694 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 13:58:44,706 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 13:58:44,708 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 13:58:44,709 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 13:58:44,711 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 13:58:44,712 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 13:58:44,713 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 13:58:44,716 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 13:58:44,719 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 13:58:44,721 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 13:58:44,723 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 13:58:44,726 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 13:58:44,729 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 13:58:44,736 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 13:58:44,740 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 13:58:44,743 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 13:58:44,744 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 13:58:44,745 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 13:58:44,747 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 13:58:44,747 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 13:58:44,747 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 13:58:44,752 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 13:58:44,753 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 13:58:44,754 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 13:58:44,754 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 13:58:44,757 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 13:58:44,758 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 13:58:44,759 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 13:58:44,761 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 13:58:44,761 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 13:58:44,761 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 13:58:44,762 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 13:58:44,762 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 13:58:44,763 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 13:58:44,765 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 13:58:44,766 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 13:58:44,780 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 13:58:44,780 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 13:58:44,782 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 13:58:44,782 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 13:58:44,782 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 13:58:44,783 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 13:58:44,783 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 13:58:44,783 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 13:58:44,783 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 13:58:44,783 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 13:58:44,784 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 13:58:44,784 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 13:58:44,784 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 13:58:44,784 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 13:58:44,784 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 13:58:44,785 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 13:58:44,785 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 13:58:44,785 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 13:58:44,785 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 13:58:44,786 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 13:58:44,786 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 13:58:44,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 13:58:44,786 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 13:58:44,787 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 13:58:44,787 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 13:58:44,787 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 13:58:44,787 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 13:58:44,787 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 13:58:44,788 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 13:58:45,116 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 13:58:45,135 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 13:58:45,140 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 13:58:45,141 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 13:58:45,142 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 13:58:45,142 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec13_product32.cil.c [2019-10-07 13:58:45,210 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1a02a15d/872239ea2bcd479385701ad0814bbcc0/FLAGf64316a9e [2019-10-07 13:58:45,841 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 13:58:45,844 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec13_product32.cil.c [2019-10-07 13:58:45,865 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1a02a15d/872239ea2bcd479385701ad0814bbcc0/FLAGf64316a9e [2019-10-07 13:58:46,051 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1a02a15d/872239ea2bcd479385701ad0814bbcc0 [2019-10-07 13:58:46,062 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 13:58:46,063 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 13:58:46,064 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 13:58:46,064 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 13:58:46,068 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 13:58:46,069 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 01:58:46" (1/1) ... [2019-10-07 13:58:46,072 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@525b19e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:58:46, skipping insertion in model container [2019-10-07 13:58:46,072 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 01:58:46" (1/1) ... [2019-10-07 13:58:46,081 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 13:58:46,167 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 13:58:46,989 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 13:58:47,005 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 13:58:47,105 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 13:58:47,174 INFO L192 MainTranslator]: Completed translation [2019-10-07 13:58:47,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:58:47 WrapperNode [2019-10-07 13:58:47,175 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 13:58:47,175 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 13:58:47,176 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 13:58:47,176 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 13:58:47,191 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:58:47" (1/1) ... [2019-10-07 13:58:47,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:58:47" (1/1) ... [2019-10-07 13:58:47,237 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:58:47" (1/1) ... [2019-10-07 13:58:47,237 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:58:47" (1/1) ... [2019-10-07 13:58:47,335 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:58:47" (1/1) ... [2019-10-07 13:58:47,359 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:58:47" (1/1) ... [2019-10-07 13:58:47,369 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:58:47" (1/1) ... [2019-10-07 13:58:47,387 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 13:58:47,388 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 13:58:47,388 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 13:58:47,388 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 13:58:47,389 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:58:47" (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 13:58:47,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 13:58:47,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 13:58:47,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 13:58:47,451 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 13:58:47,451 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-07 13:58:47,452 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-07 13:58:47,452 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification13_spec__1 [2019-10-07 13:58:47,452 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification13_spec__2 [2019-10-07 13:58:47,452 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-07 13:58:47,452 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-07 13:58:47,453 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-07 13:58:47,453 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-07 13:58:47,453 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-07 13:58:47,453 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-07 13:58:47,454 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-07 13:58:47,454 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-07 13:58:47,454 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-07 13:58:47,454 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-07 13:58:47,454 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-07 13:58:47,457 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-07 13:58:47,457 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-07 13:58:47,457 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-07 13:58:47,457 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 13:58:47,457 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-07 13:58:47,458 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 13:58:47,458 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-07 13:58:47,458 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-07 13:58:47,458 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-07 13:58:47,458 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-07 13:58:47,459 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-07 13:58:47,459 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-07 13:58:47,459 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-07 13:58:47,459 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-07 13:58:47,459 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-07 13:58:47,459 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-07 13:58:47,460 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-07 13:58:47,460 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 13:58:47,460 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 13:58:47,460 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 13:58:47,460 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 13:58:47,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 13:58:47,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 13:58:47,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 13:58:47,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 13:58:47,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 13:58:47,462 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 13:58:47,462 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-07 13:58:47,462 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-07 13:58:47,462 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-07 13:58:47,462 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-10-07 13:58:47,463 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-07 13:58:47,463 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-07 13:58:47,463 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__weight [2019-10-07 13:58:47,463 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-07 13:58:47,463 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-07 13:58:47,464 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-07 13:58:47,464 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-07 13:58:47,464 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-07 13:58:47,464 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-07 13:58:47,465 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-07 13:58:47,465 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-07 13:58:47,465 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-07 13:58:47,465 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-07 13:58:47,465 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2019-10-07 13:58:47,465 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__twothirdsfull [2019-10-07 13:58:47,466 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-07 13:58:47,466 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-07 13:58:47,466 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-07 13:58:47,466 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-10-07 13:58:47,466 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2019-10-07 13:58:47,467 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-07 13:58:47,467 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-07 13:58:47,467 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-07 13:58:47,467 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2019-10-07 13:58:47,467 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-07 13:58:47,467 INFO L138 BoogieDeclarations]: Found implementation of procedure printState__wrappee__executivefloor [2019-10-07 13:58:47,468 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-07 13:58:47,468 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-07 13:58:47,468 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2019-10-07 13:58:47,468 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2019-10-07 13:58:47,468 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 13:58:47,469 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 13:58:47,469 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 13:58:47,469 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 13:58:47,469 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-07 13:58:47,469 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-07 13:58:47,470 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-07 13:58:47,470 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-07 13:58:47,470 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-07 13:58:47,470 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-07 13:58:47,470 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-07 13:58:47,470 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-07 13:58:47,471 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-07 13:58:47,471 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-07 13:58:47,471 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification13_spec__1 [2019-10-07 13:58:47,471 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-07 13:58:47,471 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification13_spec__2 [2019-10-07 13:58:47,472 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-07 13:58:47,472 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-07 13:58:47,472 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-07 13:58:47,472 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-07 13:58:47,472 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-07 13:58:47,473 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-07 13:58:47,473 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-07 13:58:47,473 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-07 13:58:47,473 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-07 13:58:47,473 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-07 13:58:47,474 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-07 13:58:47,474 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-07 13:58:47,474 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-07 13:58:47,474 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-07 13:58:47,474 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-07 13:58:47,474 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-07 13:58:47,475 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 13:58:47,475 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 13:58:47,475 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-07 13:58:47,475 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 13:58:47,475 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 13:58:47,475 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 13:58:47,476 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 13:58:47,476 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-07 13:58:47,476 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-07 13:58:47,476 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-07 13:58:47,476 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-07 13:58:47,477 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-07 13:58:47,477 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-07 13:58:47,477 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-07 13:58:47,477 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-07 13:58:47,477 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-07 13:58:47,477 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 13:58:47,477 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 13:58:47,478 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 13:58:47,478 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 13:58:47,478 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 13:58:47,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 13:58:47,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 13:58:47,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 13:58:47,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 13:58:47,479 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 13:58:47,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 13:58:47,479 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 13:58:47,479 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 13:58:47,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 13:58:47,480 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 13:58:47,480 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 13:58:47,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 13:58:47,480 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 13:58:47,480 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 13:58:47,480 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-07 13:58:47,480 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-07 13:58:47,481 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-07 13:58:47,481 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-07 13:58:47,481 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-07 13:58:47,481 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-07 13:58:47,481 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2019-10-07 13:58:47,481 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2019-10-07 13:58:47,482 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-10-07 13:58:47,482 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-07 13:58:47,482 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__weight [2019-10-07 13:58:47,482 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-07 13:58:47,482 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-07 13:58:47,482 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-07 13:58:47,482 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-07 13:58:47,483 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2019-10-07 13:58:47,483 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__twothirdsfull [2019-10-07 13:58:47,483 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-07 13:58:47,483 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-07 13:58:47,483 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-10-07 13:58:47,483 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2019-10-07 13:58:47,483 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-07 13:58:47,484 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-07 13:58:47,484 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-07 13:58:47,484 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2019-10-07 13:58:47,484 INFO L130 BoogieDeclarations]: Found specification of procedure printState__wrappee__executivefloor [2019-10-07 13:58:47,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 13:58:47,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 13:58:47,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 13:58:52,347 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 13:58:52,348 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-07 13:58:52,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 01:58:52 BoogieIcfgContainer [2019-10-07 13:58:52,350 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 13:58:52,351 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 13:58:52,351 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 13:58:52,354 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 13:58:52,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 01:58:46" (1/3) ... [2019-10-07 13:58:52,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36517d90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 01:58:52, skipping insertion in model container [2019-10-07 13:58:52,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:58:47" (2/3) ... [2019-10-07 13:58:52,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36517d90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 01:58:52, skipping insertion in model container [2019-10-07 13:58:52,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 01:58:52" (3/3) ... [2019-10-07 13:58:52,358 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec13_product32.cil.c [2019-10-07 13:58:52,368 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 13:58:52,377 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 13:58:52,388 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 13:58:52,420 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 13:58:52,420 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 13:58:52,420 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 13:58:52,421 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 13:58:52,421 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 13:58:52,421 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 13:58:52,421 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 13:58:52,421 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 13:58:52,456 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states. [2019-10-07 13:58:52,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2019-10-07 13:58:52,475 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:58:52,476 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:58:52,479 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:58:52,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:58:52,486 INFO L82 PathProgramCache]: Analyzing trace with hash -1464723508, now seen corresponding path program 1 times [2019-10-07 13:58:52,495 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:58:52,496 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:58:52,497 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:58:52,497 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:58:52,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:58:52,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:58:53,211 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-07 13:58:53,212 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:58:53,212 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 13:58:53,213 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 13:58:53,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:58:53,885 INFO L256 TraceCheckSpWp]: Trace formula consists of 2854 conjuncts, 1 conjunts are in the unsatisfiable core [2019-10-07 13:58:53,901 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 13:58:53,930 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-07 13:58:53,931 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 13:58:54,043 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-07 13:58:54,044 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 13:58:54,044 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2, 2] total 2 [2019-10-07 13:58:54,050 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 13:58:54,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 13:58:54,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 13:58:54,068 INFO L87 Difference]: Start difference. First operand 638 states. Second operand 2 states. [2019-10-07 13:58:54,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:58:54,214 INFO L93 Difference]: Finished difference Result 1014 states and 1526 transitions. [2019-10-07 13:58:54,214 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 13:58:54,216 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 95 [2019-10-07 13:58:54,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:58:54,252 INFO L225 Difference]: With dead ends: 1014 [2019-10-07 13:58:54,252 INFO L226 Difference]: Without dead ends: 515 [2019-10-07 13:58:54,267 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 191 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 13:58:54,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2019-10-07 13:58:54,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 515. [2019-10-07 13:58:54,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 515 states. [2019-10-07 13:58:54,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 759 transitions. [2019-10-07 13:58:54,402 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 759 transitions. Word has length 95 [2019-10-07 13:58:54,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:58:54,405 INFO L462 AbstractCegarLoop]: Abstraction has 515 states and 759 transitions. [2019-10-07 13:58:54,405 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 13:58:54,405 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 759 transitions. [2019-10-07 13:58:54,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2019-10-07 13:58:54,417 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:58:54,417 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:58:54,618 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 13:58:54,619 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:58:54,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:58:54,619 INFO L82 PathProgramCache]: Analyzing trace with hash -1628114196, now seen corresponding path program 1 times [2019-10-07 13:58:54,620 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:58:54,620 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:58:54,620 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:58:54,621 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:58:54,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:58:54,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:58:55,038 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-07 13:58:55,038 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:58:55,038 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 13:58:55,038 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 13:58:55,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:58:55,570 INFO L256 TraceCheckSpWp]: Trace formula consists of 2848 conjuncts, 13 conjunts are in the unsatisfiable core [2019-10-07 13:58:55,594 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 13:58:55,703 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 13:58:55,704 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 13:58:55,833 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 13:58:55,833 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 13:58:55,833 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4] total 6 [2019-10-07 13:58:55,835 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 13:58:55,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 13:58:55,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-07 13:58:55,836 INFO L87 Difference]: Start difference. First operand 515 states and 759 transitions. Second operand 4 states. [2019-10-07 13:58:57,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:58:57,267 INFO L93 Difference]: Finished difference Result 1933 states and 2924 transitions. [2019-10-07 13:58:57,268 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-07 13:58:57,268 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 95 [2019-10-07 13:58:57,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:58:57,282 INFO L225 Difference]: With dead ends: 1933 [2019-10-07 13:58:57,283 INFO L226 Difference]: Without dead ends: 1455 [2019-10-07 13:58:57,287 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 184 SyntacticMatches, 5 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-07 13:58:57,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1455 states. [2019-10-07 13:58:57,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1455 to 1363. [2019-10-07 13:58:57,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1363 states. [2019-10-07 13:58:57,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1363 states to 1363 states and 2069 transitions. [2019-10-07 13:58:57,389 INFO L78 Accepts]: Start accepts. Automaton has 1363 states and 2069 transitions. Word has length 95 [2019-10-07 13:58:57,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:58:57,389 INFO L462 AbstractCegarLoop]: Abstraction has 1363 states and 2069 transitions. [2019-10-07 13:58:57,390 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 13:58:57,390 INFO L276 IsEmpty]: Start isEmpty. Operand 1363 states and 2069 transitions. [2019-10-07 13:58:57,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-10-07 13:58:57,398 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:58:57,398 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:58:57,605 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 13:58:57,606 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:58:57,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:58:57,607 INFO L82 PathProgramCache]: Analyzing trace with hash 2119660925, now seen corresponding path program 1 times [2019-10-07 13:58:57,607 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:58:57,607 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:58:57,608 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:58:57,608 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:58:57,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:58:57,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:58:58,035 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-07 13:58:58,036 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:58:58,036 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:58:58,036 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-07 13:58:58,039 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-07 13:58:58,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-07 13:58:58,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-10-07 13:58:58,041 INFO L87 Difference]: Start difference. First operand 1363 states and 2069 transitions. Second operand 10 states. [2019-10-07 13:58:59,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:58:59,402 INFO L93 Difference]: Finished difference Result 2893 states and 4406 transitions. [2019-10-07 13:58:59,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-07 13:58:59,403 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 142 [2019-10-07 13:58:59,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:58:59,416 INFO L225 Difference]: With dead ends: 2893 [2019-10-07 13:58:59,416 INFO L226 Difference]: Without dead ends: 1567 [2019-10-07 13:58:59,424 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2019-10-07 13:58:59,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1567 states. [2019-10-07 13:58:59,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1567 to 1559. [2019-10-07 13:58:59,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1559 states. [2019-10-07 13:58:59,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1559 states to 1559 states and 2348 transitions. [2019-10-07 13:58:59,541 INFO L78 Accepts]: Start accepts. Automaton has 1559 states and 2348 transitions. Word has length 142 [2019-10-07 13:58:59,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:58:59,542 INFO L462 AbstractCegarLoop]: Abstraction has 1559 states and 2348 transitions. [2019-10-07 13:58:59,542 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-07 13:58:59,542 INFO L276 IsEmpty]: Start isEmpty. Operand 1559 states and 2348 transitions. [2019-10-07 13:58:59,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-10-07 13:58:59,548 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:58:59,549 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:58:59,549 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:58:59,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:58:59,550 INFO L82 PathProgramCache]: Analyzing trace with hash -1983709932, now seen corresponding path program 1 times [2019-10-07 13:58:59,550 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:58:59,550 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:58:59,550 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:58:59,550 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:58:59,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:58:59,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:58:59,882 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-07 13:58:59,883 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:58:59,883 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:58:59,883 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 13:58:59,884 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 13:58:59,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 13:58:59,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 13:58:59,887 INFO L87 Difference]: Start difference. First operand 1559 states and 2348 transitions. Second operand 7 states. [2019-10-07 13:59:04,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:59:04,469 INFO L93 Difference]: Finished difference Result 4343 states and 6610 transitions. [2019-10-07 13:59:04,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-07 13:59:04,470 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 143 [2019-10-07 13:59:04,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:59:04,495 INFO L225 Difference]: With dead ends: 4343 [2019-10-07 13:59:04,495 INFO L226 Difference]: Without dead ends: 2824 [2019-10-07 13:59:04,505 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 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 13:59:04,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2824 states. [2019-10-07 13:59:04,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2824 to 2722. [2019-10-07 13:59:04,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2722 states. [2019-10-07 13:59:04,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2722 states to 2722 states and 4128 transitions. [2019-10-07 13:59:04,740 INFO L78 Accepts]: Start accepts. Automaton has 2722 states and 4128 transitions. Word has length 143 [2019-10-07 13:59:04,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:59:04,741 INFO L462 AbstractCegarLoop]: Abstraction has 2722 states and 4128 transitions. [2019-10-07 13:59:04,741 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 13:59:04,742 INFO L276 IsEmpty]: Start isEmpty. Operand 2722 states and 4128 transitions. [2019-10-07 13:59:04,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2019-10-07 13:59:04,746 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:59:04,747 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:59:04,747 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:59:04,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:59:04,748 INFO L82 PathProgramCache]: Analyzing trace with hash 1361981063, now seen corresponding path program 1 times [2019-10-07 13:59:04,748 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:59:04,748 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:59:04,748 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:59:04,748 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:59:04,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:59:04,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:59:04,931 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-07 13:59:04,931 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:59:04,931 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 13:59:04,932 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 13:59:05,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:59:05,512 INFO L256 TraceCheckSpWp]: Trace formula consists of 3214 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-07 13:59:05,523 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 13:59:05,546 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 13:59:05,547 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 13:59:05,722 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-07 13:59:05,722 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 13:59:05,723 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 5 [2019-10-07 13:59:05,723 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 13:59:05,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 13:59:05,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-07 13:59:05,724 INFO L87 Difference]: Start difference. First operand 2722 states and 4128 transitions. Second operand 4 states. [2019-10-07 13:59:05,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:59:05,861 INFO L93 Difference]: Finished difference Result 5455 states and 8432 transitions. [2019-10-07 13:59:05,862 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 13:59:05,862 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 147 [2019-10-07 13:59:05,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:59:05,889 INFO L225 Difference]: With dead ends: 5455 [2019-10-07 13:59:05,889 INFO L226 Difference]: Without dead ends: 2770 [2019-10-07 13:59:05,911 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-10-07 13:59:05,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2770 states. [2019-10-07 13:59:06,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2770 to 2770. [2019-10-07 13:59:06,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2770 states. [2019-10-07 13:59:06,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2770 states to 2770 states and 4176 transitions. [2019-10-07 13:59:06,090 INFO L78 Accepts]: Start accepts. Automaton has 2770 states and 4176 transitions. Word has length 147 [2019-10-07 13:59:06,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:59:06,091 INFO L462 AbstractCegarLoop]: Abstraction has 2770 states and 4176 transitions. [2019-10-07 13:59:06,092 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 13:59:06,093 INFO L276 IsEmpty]: Start isEmpty. Operand 2770 states and 4176 transitions. [2019-10-07 13:59:06,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-10-07 13:59:06,098 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:59:06,098 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:59:06,306 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 13:59:06,306 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:59:06,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:59:06,307 INFO L82 PathProgramCache]: Analyzing trace with hash -1842947682, now seen corresponding path program 1 times [2019-10-07 13:59:06,307 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:59:06,307 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:59:06,307 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:59:06,308 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:59:06,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:59:06,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:59:06,577 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-07 13:59:06,577 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:59:06,578 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 13:59:06,578 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 13:59:07,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:59:07,170 INFO L256 TraceCheckSpWp]: Trace formula consists of 3219 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-07 13:59:07,178 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 13:59:07,212 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-07 13:59:07,213 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 13:59:07,387 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-07 13:59:07,388 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 13:59:07,388 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [5] total 8 [2019-10-07 13:59:07,389 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 13:59:07,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 13:59:07,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-07 13:59:07,389 INFO L87 Difference]: Start difference. First operand 2770 states and 4176 transitions. Second operand 5 states. [2019-10-07 13:59:07,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:59:07,538 INFO L93 Difference]: Finished difference Result 5527 states and 8472 transitions. [2019-10-07 13:59:07,538 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 13:59:07,538 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2019-10-07 13:59:07,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:59:07,559 INFO L225 Difference]: With dead ends: 5527 [2019-10-07 13:59:07,560 INFO L226 Difference]: Without dead ends: 2762 [2019-10-07 13:59:07,578 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-10-07 13:59:07,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2762 states. [2019-10-07 13:59:07,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2762 to 2762. [2019-10-07 13:59:07,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2762 states. [2019-10-07 13:59:07,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2762 states to 2762 states and 4144 transitions. [2019-10-07 13:59:07,766 INFO L78 Accepts]: Start accepts. Automaton has 2762 states and 4144 transitions. Word has length 149 [2019-10-07 13:59:07,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:59:07,768 INFO L462 AbstractCegarLoop]: Abstraction has 2762 states and 4144 transitions. [2019-10-07 13:59:07,768 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 13:59:07,768 INFO L276 IsEmpty]: Start isEmpty. Operand 2762 states and 4144 transitions. [2019-10-07 13:59:07,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-07 13:59:07,773 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:59:07,774 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:59:07,983 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 13:59:07,984 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:59:07,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:59:07,984 INFO L82 PathProgramCache]: Analyzing trace with hash -1493364735, now seen corresponding path program 1 times [2019-10-07 13:59:07,985 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:59:07,985 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:59:07,985 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:59:07,985 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:59:07,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:59:08,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:59:08,374 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-07 13:59:08,374 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:59:08,374 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 13:59:08,374 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 13:59:08,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:59:08,981 INFO L256 TraceCheckSpWp]: Trace formula consists of 3223 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-07 13:59:08,988 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 13:59:09,045 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 13:59:09,045 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 13:59:09,321 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 13:59:09,322 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 13:59:09,323 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 6] total 12 [2019-10-07 13:59:09,324 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 13:59:09,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 13:59:09,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2019-10-07 13:59:09,325 INFO L87 Difference]: Start difference. First operand 2762 states and 4144 transitions. Second operand 5 states. [2019-10-07 13:59:10,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:59:10,926 INFO L93 Difference]: Finished difference Result 6991 states and 10932 transitions. [2019-10-07 13:59:10,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 13:59:10,927 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 150 [2019-10-07 13:59:10,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:59:10,969 INFO L225 Difference]: With dead ends: 6991 [2019-10-07 13:59:10,970 INFO L226 Difference]: Without dead ends: 4266 [2019-10-07 13:59:10,991 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 292 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2019-10-07 13:59:10,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4266 states. [2019-10-07 13:59:11,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4266 to 4205. [2019-10-07 13:59:11,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4205 states. [2019-10-07 13:59:11,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4205 states to 4205 states and 6364 transitions. [2019-10-07 13:59:11,227 INFO L78 Accepts]: Start accepts. Automaton has 4205 states and 6364 transitions. Word has length 150 [2019-10-07 13:59:11,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:59:11,228 INFO L462 AbstractCegarLoop]: Abstraction has 4205 states and 6364 transitions. [2019-10-07 13:59:11,228 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 13:59:11,228 INFO L276 IsEmpty]: Start isEmpty. Operand 4205 states and 6364 transitions. [2019-10-07 13:59:11,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2019-10-07 13:59:11,234 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:59:11,234 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:59:11,451 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 13:59:11,452 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:59:11,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:59:11,453 INFO L82 PathProgramCache]: Analyzing trace with hash 407081665, now seen corresponding path program 1 times [2019-10-07 13:59:11,453 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:59:11,453 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:59:11,453 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:59:11,454 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:59:11,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:59:11,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:59:11,663 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-07 13:59:11,664 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:59:11,664 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 13:59:11,664 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 13:59:12,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:59:12,520 INFO L256 TraceCheckSpWp]: Trace formula consists of 3224 conjuncts, 16 conjunts are in the unsatisfiable core [2019-10-07 13:59:12,542 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 13:59:12,653 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-07 13:59:12,653 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 13:59:12,964 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-07 13:59:12,964 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 13:59:12,964 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7, 7] total 15 [2019-10-07 13:59:12,965 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 13:59:12,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 13:59:12,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2019-10-07 13:59:12,966 INFO L87 Difference]: Start difference. First operand 4205 states and 6364 transitions. Second operand 7 states. [2019-10-07 13:59:14,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:59:14,722 INFO L93 Difference]: Finished difference Result 9515 states and 14922 transitions. [2019-10-07 13:59:14,723 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-07 13:59:14,723 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 151 [2019-10-07 13:59:14,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:59:14,767 INFO L225 Difference]: With dead ends: 9515 [2019-10-07 13:59:14,768 INFO L226 Difference]: Without dead ends: 5347 [2019-10-07 13:59:14,790 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 291 SyntacticMatches, 9 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2019-10-07 13:59:14,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5347 states. [2019-10-07 13:59:15,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5347 to 5301. [2019-10-07 13:59:15,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5301 states. [2019-10-07 13:59:15,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5301 states to 5301 states and 8375 transitions. [2019-10-07 13:59:15,156 INFO L78 Accepts]: Start accepts. Automaton has 5301 states and 8375 transitions. Word has length 151 [2019-10-07 13:59:15,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:59:15,157 INFO L462 AbstractCegarLoop]: Abstraction has 5301 states and 8375 transitions. [2019-10-07 13:59:15,157 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 13:59:15,157 INFO L276 IsEmpty]: Start isEmpty. Operand 5301 states and 8375 transitions. [2019-10-07 13:59:15,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2019-10-07 13:59:15,164 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:59:15,165 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:59:15,376 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 13:59:15,376 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:59:15,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:59:15,377 INFO L82 PathProgramCache]: Analyzing trace with hash 1057009121, now seen corresponding path program 1 times [2019-10-07 13:59:15,377 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:59:15,377 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:59:15,377 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:59:15,377 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:59:15,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:59:15,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:59:15,598 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 13:59:15,598 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:59:15,598 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 13:59:15,599 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 13:59:16,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:59:16,339 INFO L256 TraceCheckSpWp]: Trace formula consists of 3226 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-07 13:59:16,346 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 13:59:16,393 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 13:59:16,393 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 13:59:16,528 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2019-10-07 13:59:16,727 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 13:59:16,728 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 13:59:16,729 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [5] total 8 [2019-10-07 13:59:16,733 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 13:59:16,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 13:59:16,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-07 13:59:16,735 INFO L87 Difference]: Start difference. First operand 5301 states and 8375 transitions. Second operand 5 states. [2019-10-07 13:59:17,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:59:17,032 INFO L93 Difference]: Finished difference Result 10684 states and 17459 transitions. [2019-10-07 13:59:17,032 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 13:59:17,033 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 151 [2019-10-07 13:59:17,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:59:17,101 INFO L225 Difference]: With dead ends: 10684 [2019-10-07 13:59:17,102 INFO L226 Difference]: Without dead ends: 5433 [2019-10-07 13:59:17,136 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 297 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-07 13:59:17,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5433 states. [2019-10-07 13:59:17,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5433 to 5353. [2019-10-07 13:59:17,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5353 states. [2019-10-07 13:59:17,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5353 states to 5353 states and 8427 transitions. [2019-10-07 13:59:17,444 INFO L78 Accepts]: Start accepts. Automaton has 5353 states and 8427 transitions. Word has length 151 [2019-10-07 13:59:17,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:59:17,446 INFO L462 AbstractCegarLoop]: Abstraction has 5353 states and 8427 transitions. [2019-10-07 13:59:17,446 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 13:59:17,446 INFO L276 IsEmpty]: Start isEmpty. Operand 5353 states and 8427 transitions. [2019-10-07 13:59:17,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2019-10-07 13:59:17,452 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:59:17,452 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:59:17,662 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 13:59:17,662 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:59:17,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:59:17,663 INFO L82 PathProgramCache]: Analyzing trace with hash -1430264882, now seen corresponding path program 1 times [2019-10-07 13:59:17,663 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:59:17,663 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:59:17,663 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:59:17,663 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:59:17,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:59:17,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:59:17,832 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 13:59:17,832 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:59:17,833 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 13:59:17,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 13:59:18,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:59:18,518 INFO L256 TraceCheckSpWp]: Trace formula consists of 3230 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-07 13:59:18,523 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 13:59:18,573 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 13:59:18,574 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 13:59:18,835 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 13:59:18,835 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 13:59:18,835 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 4] total 9 [2019-10-07 13:59:18,836 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 13:59:18,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 13:59:18,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-10-07 13:59:18,837 INFO L87 Difference]: Start difference. First operand 5353 states and 8427 transitions. Second operand 4 states. [2019-10-07 13:59:19,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:59:19,291 INFO L93 Difference]: Finished difference Result 10936 states and 17865 transitions. [2019-10-07 13:59:19,291 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-07 13:59:19,291 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 153 [2019-10-07 13:59:19,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:59:19,324 INFO L225 Difference]: With dead ends: 10936 [2019-10-07 13:59:19,324 INFO L226 Difference]: Without dead ends: 5634 [2019-10-07 13:59:19,343 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 308 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-10-07 13:59:19,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5634 states. [2019-10-07 13:59:19,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5634 to 5568. [2019-10-07 13:59:19,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5568 states. [2019-10-07 13:59:19,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5568 states to 5568 states and 8778 transitions. [2019-10-07 13:59:19,606 INFO L78 Accepts]: Start accepts. Automaton has 5568 states and 8778 transitions. Word has length 153 [2019-10-07 13:59:19,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:59:19,606 INFO L462 AbstractCegarLoop]: Abstraction has 5568 states and 8778 transitions. [2019-10-07 13:59:19,607 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 13:59:19,607 INFO L276 IsEmpty]: Start isEmpty. Operand 5568 states and 8778 transitions. [2019-10-07 13:59:19,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-07 13:59:19,611 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:59:19,612 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:59:19,819 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 13:59:19,820 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:59:19,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:59:19,820 INFO L82 PathProgramCache]: Analyzing trace with hash 429089476, now seen corresponding path program 1 times [2019-10-07 13:59:19,820 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:59:19,821 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:59:19,821 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:59:19,821 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:59:19,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:59:19,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:59:20,004 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 13:59:20,004 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:59:20,004 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 13:59:20,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 13:59:20,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:59:20,640 INFO L256 TraceCheckSpWp]: Trace formula consists of 3232 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-07 13:59:20,646 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 13:59:20,694 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 13:59:20,694 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 13:59:20,906 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 13:59:20,906 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 13:59:20,906 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 6] total 11 [2019-10-07 13:59:20,907 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 13:59:20,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 13:59:20,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2019-10-07 13:59:20,908 INFO L87 Difference]: Start difference. First operand 5568 states and 8778 transitions. Second operand 5 states. [2019-10-07 13:59:22,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:59:22,458 INFO L93 Difference]: Finished difference Result 13376 states and 22948 transitions. [2019-10-07 13:59:22,458 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 13:59:22,459 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 155 [2019-10-07 13:59:22,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:59:22,511 INFO L225 Difference]: With dead ends: 13376 [2019-10-07 13:59:22,511 INFO L226 Difference]: Without dead ends: 9048 [2019-10-07 13:59:22,533 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 308 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2019-10-07 13:59:22,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9048 states. [2019-10-07 13:59:22,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9048 to 8835. [2019-10-07 13:59:22,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8835 states. [2019-10-07 13:59:23,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8835 states to 8835 states and 14711 transitions. [2019-10-07 13:59:23,013 INFO L78 Accepts]: Start accepts. Automaton has 8835 states and 14711 transitions. Word has length 155 [2019-10-07 13:59:23,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:59:23,014 INFO L462 AbstractCegarLoop]: Abstraction has 8835 states and 14711 transitions. [2019-10-07 13:59:23,014 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 13:59:23,014 INFO L276 IsEmpty]: Start isEmpty. Operand 8835 states and 14711 transitions. [2019-10-07 13:59:23,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-07 13:59:23,019 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:59:23,019 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:59:23,235 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 13:59:23,236 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:59:23,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:59:23,237 INFO L82 PathProgramCache]: Analyzing trace with hash -1836215634, now seen corresponding path program 1 times [2019-10-07 13:59:23,237 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:59:23,237 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:59:23,237 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:59:23,238 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:59:23,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:59:23,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:59:23,392 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 13:59:23,392 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:59:23,393 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 13:59:23,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 13:59:24,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:59:24,059 INFO L256 TraceCheckSpWp]: Trace formula consists of 3231 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 13:59:24,063 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 13:59:24,079 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-07 13:59:24,079 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 13:59:24,363 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 13:59:24,363 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 13:59:24,364 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 6 [2019-10-07 13:59:24,366 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 13:59:24,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 13:59:24,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-10-07 13:59:24,367 INFO L87 Difference]: Start difference. First operand 8835 states and 14711 transitions. Second operand 4 states. [2019-10-07 13:59:24,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:59:24,612 INFO L93 Difference]: Finished difference Result 17309 states and 30180 transitions. [2019-10-07 13:59:24,613 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-07 13:59:24,613 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 155 [2019-10-07 13:59:24,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:59:24,662 INFO L225 Difference]: With dead ends: 17309 [2019-10-07 13:59:24,662 INFO L226 Difference]: Without dead ends: 8525 [2019-10-07 13:59:24,708 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-10-07 13:59:24,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8525 states. [2019-10-07 13:59:25,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8525 to 8242. [2019-10-07 13:59:25,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8242 states. [2019-10-07 13:59:25,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8242 states to 8242 states and 13290 transitions. [2019-10-07 13:59:25,174 INFO L78 Accepts]: Start accepts. Automaton has 8242 states and 13290 transitions. Word has length 155 [2019-10-07 13:59:25,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:59:25,175 INFO L462 AbstractCegarLoop]: Abstraction has 8242 states and 13290 transitions. [2019-10-07 13:59:25,175 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 13:59:25,175 INFO L276 IsEmpty]: Start isEmpty. Operand 8242 states and 13290 transitions. [2019-10-07 13:59:25,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2019-10-07 13:59:25,180 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:59:25,181 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:59:25,389 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 13:59:25,390 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:59:25,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:59:25,390 INFO L82 PathProgramCache]: Analyzing trace with hash -1574540389, now seen corresponding path program 1 times [2019-10-07 13:59:25,391 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:59:25,391 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:59:25,391 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:59:25,391 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:59:25,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:59:25,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:59:25,535 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-10-07 13:59:25,536 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:59:25,536 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 13:59:25,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 13:59:26,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:59:26,214 INFO L256 TraceCheckSpWp]: Trace formula consists of 3232 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-07 13:59:26,218 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 13:59:26,269 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 13:59:26,269 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 13:59:26,428 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 13:59:26,428 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 13:59:26,429 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [5] total 7 [2019-10-07 13:59:26,429 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 13:59:26,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 13:59:26,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-07 13:59:26,430 INFO L87 Difference]: Start difference. First operand 8242 states and 13290 transitions. Second operand 4 states. [2019-10-07 13:59:26,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:59:26,827 INFO L93 Difference]: Finished difference Result 16799 states and 28925 transitions. [2019-10-07 13:59:26,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-07 13:59:26,828 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 158 [2019-10-07 13:59:26,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:59:26,865 INFO L225 Difference]: With dead ends: 16799 [2019-10-07 13:59:26,865 INFO L226 Difference]: Without dead ends: 8608 [2019-10-07 13:59:26,899 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 312 SyntacticMatches, 3 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-07 13:59:26,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8608 states. [2019-10-07 13:59:27,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8608 to 8419. [2019-10-07 13:59:27,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8419 states. [2019-10-07 13:59:27,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8419 states to 8419 states and 13557 transitions. [2019-10-07 13:59:27,291 INFO L78 Accepts]: Start accepts. Automaton has 8419 states and 13557 transitions. Word has length 158 [2019-10-07 13:59:27,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:59:27,291 INFO L462 AbstractCegarLoop]: Abstraction has 8419 states and 13557 transitions. [2019-10-07 13:59:27,291 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 13:59:27,292 INFO L276 IsEmpty]: Start isEmpty. Operand 8419 states and 13557 transitions. [2019-10-07 13:59:27,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2019-10-07 13:59:27,298 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:59:27,298 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:59:27,506 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 13:59:27,507 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:59:27,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:59:27,507 INFO L82 PathProgramCache]: Analyzing trace with hash 2080219080, now seen corresponding path program 1 times [2019-10-07 13:59:27,508 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:59:27,508 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:59:27,508 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:59:27,509 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:59:27,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:59:27,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:59:27,686 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-07 13:59:27,686 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:59:27,687 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 13:59:27,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 13:59:28,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:59:28,378 INFO L256 TraceCheckSpWp]: Trace formula consists of 3244 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-07 13:59:28,383 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 13:59:28,454 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 13:59:28,454 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 13:59:28,655 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 13:59:28,655 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 13:59:28,655 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 6] total 12 [2019-10-07 13:59:28,656 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 13:59:28,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 13:59:28,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2019-10-07 13:59:28,656 INFO L87 Difference]: Start difference. First operand 8419 states and 13557 transitions. Second operand 5 states. [2019-10-07 13:59:30,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:59:30,897 INFO L93 Difference]: Finished difference Result 19257 states and 33289 transitions. [2019-10-07 13:59:30,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 13:59:30,898 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 164 [2019-10-07 13:59:30,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:59:30,960 INFO L225 Difference]: With dead ends: 19257 [2019-10-07 13:59:30,961 INFO L226 Difference]: Without dead ends: 12252 [2019-10-07 13:59:30,994 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 326 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2019-10-07 13:59:31,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12252 states. [2019-10-07 13:59:31,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12252 to 12102. [2019-10-07 13:59:31,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12102 states. [2019-10-07 13:59:31,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12102 states to 12102 states and 20493 transitions. [2019-10-07 13:59:31,601 INFO L78 Accepts]: Start accepts. Automaton has 12102 states and 20493 transitions. Word has length 164 [2019-10-07 13:59:31,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:59:31,602 INFO L462 AbstractCegarLoop]: Abstraction has 12102 states and 20493 transitions. [2019-10-07 13:59:31,602 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 13:59:31,602 INFO L276 IsEmpty]: Start isEmpty. Operand 12102 states and 20493 transitions. [2019-10-07 13:59:31,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-07 13:59:31,609 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:59:31,609 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:59:31,818 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 13:59:31,818 INFO L410 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:59:31,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:59:31,818 INFO L82 PathProgramCache]: Analyzing trace with hash -1623213150, now seen corresponding path program 1 times [2019-10-07 13:59:31,819 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:59:31,819 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:59:31,819 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:59:31,819 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:59:31,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:59:31,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:59:31,984 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-07 13:59:31,985 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:59:31,985 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 13:59:31,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 13:59:32,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:59:32,706 INFO L256 TraceCheckSpWp]: Trace formula consists of 3245 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-07 13:59:32,710 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 13:59:32,756 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 13:59:32,757 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 13:59:32,962 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 13:59:32,962 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 13:59:32,963 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 6] total 11 [2019-10-07 13:59:32,963 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 13:59:32,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 13:59:32,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2019-10-07 13:59:32,964 INFO L87 Difference]: Start difference. First operand 12102 states and 20493 transitions. Second operand 5 states. [2019-10-07 13:59:34,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:59:34,733 INFO L93 Difference]: Finished difference Result 26649 states and 47951 transitions. [2019-10-07 13:59:34,734 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 13:59:34,734 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 165 [2019-10-07 13:59:34,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:59:34,797 INFO L225 Difference]: With dead ends: 26649 [2019-10-07 13:59:34,797 INFO L226 Difference]: Without dead ends: 15967 [2019-10-07 13:59:34,839 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 328 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2019-10-07 13:59:34,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15967 states. [2019-10-07 13:59:35,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15967 to 15599. [2019-10-07 13:59:35,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15599 states. [2019-10-07 13:59:35,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15599 states to 15599 states and 27723 transitions. [2019-10-07 13:59:35,614 INFO L78 Accepts]: Start accepts. Automaton has 15599 states and 27723 transitions. Word has length 165 [2019-10-07 13:59:35,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:59:35,615 INFO L462 AbstractCegarLoop]: Abstraction has 15599 states and 27723 transitions. [2019-10-07 13:59:35,615 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 13:59:35,615 INFO L276 IsEmpty]: Start isEmpty. Operand 15599 states and 27723 transitions. [2019-10-07 13:59:35,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2019-10-07 13:59:35,621 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:59:35,621 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:59:35,829 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 13:59:35,829 INFO L410 AbstractCegarLoop]: === Iteration 16 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:59:35,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:59:35,829 INFO L82 PathProgramCache]: Analyzing trace with hash -1252463214, now seen corresponding path program 1 times [2019-10-07 13:59:35,830 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:59:35,830 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:59:35,830 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:59:35,830 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:59:35,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:59:35,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:59:36,223 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-07 13:59:36,223 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:59:36,224 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 13:59:36,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 13:59:36,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:59:36,930 INFO L256 TraceCheckSpWp]: Trace formula consists of 3246 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 13:59:36,934 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 13:59:36,952 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 13:59:36,953 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 13:59:37,098 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 13:59:37,098 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 13:59:37,098 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 4] total 5 [2019-10-07 13:59:37,099 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 13:59:37,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 13:59:37,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 13:59:37,099 INFO L87 Difference]: Start difference. First operand 15599 states and 27723 transitions. Second operand 3 states. [2019-10-07 13:59:37,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:59:38,000 INFO L93 Difference]: Finished difference Result 43888 states and 93504 transitions. [2019-10-07 13:59:38,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 13:59:38,000 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 166 [2019-10-07 13:59:38,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:59:38,135 INFO L225 Difference]: With dead ends: 43888 [2019-10-07 13:59:38,135 INFO L226 Difference]: Without dead ends: 28347 [2019-10-07 13:59:38,213 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 339 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 13:59:38,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28347 states. [2019-10-07 13:59:40,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28347 to 28254. [2019-10-07 13:59:40,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28254 states. [2019-10-07 13:59:41,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28254 states to 28254 states and 57101 transitions. [2019-10-07 13:59:41,029 INFO L78 Accepts]: Start accepts. Automaton has 28254 states and 57101 transitions. Word has length 166 [2019-10-07 13:59:41,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:59:41,030 INFO L462 AbstractCegarLoop]: Abstraction has 28254 states and 57101 transitions. [2019-10-07 13:59:41,030 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 13:59:41,030 INFO L276 IsEmpty]: Start isEmpty. Operand 28254 states and 57101 transitions. [2019-10-07 13:59:41,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2019-10-07 13:59:41,037 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:59:41,038 INFO L385 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:59:41,245 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 13:59:41,246 INFO L410 AbstractCegarLoop]: === Iteration 17 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:59:41,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:59:41,246 INFO L82 PathProgramCache]: Analyzing trace with hash 1577162961, now seen corresponding path program 1 times [2019-10-07 13:59:41,246 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:59:41,246 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:59:41,246 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:59:41,247 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:59:41,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:59:41,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:59:41,382 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2019-10-07 13:59:41,382 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:59:41,382 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 13:59:41,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 13:59:42,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:59:42,421 INFO L256 TraceCheckSpWp]: Trace formula consists of 3244 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-07 13:59:42,425 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 13:59:42,473 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 13:59:42,473 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 13:59:42,640 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 13:59:42,640 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 13:59:42,673 INFO L162 IcfgInterpreter]: Started Sifa with 135 locations of interest [2019-10-07 13:59:42,673 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 13:59:42,681 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 13:59:42,689 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 13:59:42,690 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:00:36,351 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 769 [2019-10-07 14:00:41,588 WARN L191 SmtUtils]: Spent 2.57 s on a formula simplification. DAG size of input: 430 DAG size of output: 347 [2019-10-07 14:00:43,203 WARN L191 SmtUtils]: Spent 1.61 s on a formula simplification that was a NOOP. DAG size: 862 [2019-10-07 14:00:43,777 WARN L191 SmtUtils]: Spent 567.00 ms on a formula simplification that was a NOOP. DAG size: 862 [2019-10-07 14:00:44,117 WARN L191 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 862 [2019-10-07 14:00:44,653 WARN L191 SmtUtils]: Spent 460.00 ms on a formula simplification that was a NOOP. DAG size: 1048 [2019-10-07 14:00:45,154 WARN L191 SmtUtils]: Spent 487.00 ms on a formula simplification that was a NOOP. DAG size: 1048 [2019-10-07 14:00:45,636 WARN L191 SmtUtils]: Spent 479.00 ms on a formula simplification that was a NOOP. DAG size: 1048 [2019-10-07 14:00:46,155 WARN L191 SmtUtils]: Spent 451.00 ms on a formula simplification that was a NOOP. DAG size: 1048 [2019-10-07 14:00:47,034 WARN L191 SmtUtils]: Spent 860.00 ms on a formula simplification. DAG size of input: 1050 DAG size of output: 1048 [2019-10-07 14:00:47,539 WARN L191 SmtUtils]: Spent 502.00 ms on a formula simplification that was a NOOP. DAG size: 1048 [2019-10-07 14:00:48,060 WARN L191 SmtUtils]: Spent 453.00 ms on a formula simplification that was a NOOP. DAG size: 1048 [2019-10-07 14:00:48,524 WARN L191 SmtUtils]: Spent 461.00 ms on a formula simplification that was a NOOP. DAG size: 1048 [2019-10-07 14:00:48,983 WARN L191 SmtUtils]: Spent 455.00 ms on a formula simplification that was a NOOP. DAG size: 1048 [2019-10-07 14:00:49,491 WARN L191 SmtUtils]: Spent 459.00 ms on a formula simplification that was a NOOP. DAG size: 1048 [2019-10-07 14:00:49,509 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 388 for LOIs [2019-10-07 14:00:49,725 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 737 [2019-10-07 14:00:49,830 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 737 [2019-10-07 14:00:50,170 WARN L191 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 923 [2019-10-07 14:00:50,172 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1094 for LOIs [2019-10-07 14:00:50,617 WARN L191 SmtUtils]: Spent 444.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:00:51,060 WARN L191 SmtUtils]: Spent 439.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:00:51,180 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:00:51,931 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:00:52,386 WARN L191 SmtUtils]: Spent 441.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:00:52,838 WARN L191 SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:00:52,954 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:00:53,703 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:00:54,184 WARN L191 SmtUtils]: Spent 447.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:00:54,626 WARN L191 SmtUtils]: Spent 439.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:00:54,879 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:00:55,706 WARN L191 SmtUtils]: Spent 824.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:00:56,565 WARN L191 SmtUtils]: Spent 834.00 ms on a formula simplification. DAG size of input: 1258 DAG size of output: 1094 [2019-10-07 14:00:57,011 WARN L191 SmtUtils]: Spent 443.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:00:57,142 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:00:57,881 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:00:58,342 WARN L191 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:00:58,813 WARN L191 SmtUtils]: Spent 469.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:00:58,925 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:00:59,670 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:01:00,114 WARN L191 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:01:00,557 WARN L191 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:01:00,674 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:01:01,429 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:01:01,870 WARN L191 SmtUtils]: Spent 438.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:01:02,312 WARN L191 SmtUtils]: Spent 438.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:01:02,423 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:01:03,156 WARN L191 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:01:03,601 WARN L191 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:01:04,054 WARN L191 SmtUtils]: Spent 450.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:01:04,166 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:01:04,901 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:01:05,343 WARN L191 SmtUtils]: Spent 439.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:01:05,809 WARN L191 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:01:05,923 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:01:06,659 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:01:07,102 WARN L191 SmtUtils]: Spent 441.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:01:07,547 WARN L191 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:01:07,660 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:01:08,405 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:01:08,849 WARN L191 SmtUtils]: Spent 441.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:01:09,314 WARN L191 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:01:09,426 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:01:10,168 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:01:10,619 WARN L191 SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:01:11,078 WARN L191 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:01:11,192 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:01:11,947 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:01:12,413 WARN L191 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:01:12,856 WARN L191 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:01:12,968 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:01:13,710 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:01:15,631 WARN L191 SmtUtils]: Spent 1.86 s on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:01:16,412 WARN L191 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:01:16,531 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:01:17,279 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:01:19,652 WARN L191 SmtUtils]: Spent 2.36 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:01:20,401 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:01:20,527 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:01:21,281 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:01:22,033 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:01:22,775 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:01:22,889 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:01:23,650 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:01:24,438 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:01:25,182 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:01:25,298 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:01:26,049 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:01:26,820 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:01:27,571 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:01:27,692 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:01:28,441 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:01:29,195 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:01:29,968 WARN L191 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:01:30,084 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:01:30,836 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:01:31,606 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:01:32,362 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:01:32,505 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:01:33,258 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:01:34,026 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:01:34,790 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:01:34,909 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:01:35,662 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:01:36,452 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:01:37,209 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:01:37,326 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:01:38,082 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:01:38,855 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:01:39,622 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:01:39,899 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:01:40,753 WARN L191 SmtUtils]: Spent 851.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:01:41,507 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:01:42,278 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:01:42,394 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:01:43,158 WARN L191 SmtUtils]: Spent 762.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:01:44,603 WARN L191 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:01:45,375 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:01:45,513 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:01:46,262 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:01:47,639 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:01:48,398 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:01:48,523 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:01:49,280 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:01:50,044 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:01:50,815 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:01:50,929 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:01:51,685 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:01:52,476 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:01:53,238 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:01:53,366 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:01:54,128 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:01:55,559 WARN L191 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:01:56,345 WARN L191 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:01:56,467 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:01:57,237 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:01:58,603 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:01:59,365 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:01:59,480 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:02:00,251 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:02:01,573 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1267 DAG size of output: 1258 [2019-10-07 14:02:02,342 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:02:02,465 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:02:03,234 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:02:04,612 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1269 DAG size of output: 1260 [2019-10-07 14:02:05,387 WARN L191 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:02:05,510 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:02:06,284 WARN L191 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:02:07,680 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:02:08,441 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:02:08,563 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:02:09,334 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:02:10,715 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:02:11,482 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:02:11,602 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:02:12,353 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:02:13,119 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:02:13,880 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:02:13,993 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:02:14,752 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:02:16,170 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:02:16,934 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:02:17,055 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:02:17,819 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:02:19,203 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:02:19,960 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:02:20,080 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:02:20,848 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:02:21,618 WARN L191 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:02:22,374 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:02:22,488 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:02:23,249 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:02:24,040 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:02:24,810 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:02:24,931 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:02:25,694 WARN L191 SmtUtils]: Spent 762.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:02:26,477 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:02:27,244 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:02:27,373 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:02:28,137 WARN L191 SmtUtils]: Spent 762.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:02:28,913 WARN L191 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:02:29,675 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:02:29,793 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:02:30,569 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:02:31,874 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1267 DAG size of output: 1260 [2019-10-07 14:02:32,638 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:02:32,762 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:02:33,526 WARN L191 SmtUtils]: Spent 762.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:02:34,910 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:02:35,667 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:02:35,786 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:02:36,553 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:02:37,907 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:02:38,661 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:02:38,781 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:02:39,537 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:02:40,294 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:02:41,052 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:02:41,172 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:02:41,927 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:02:42,726 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:02:43,492 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:02:43,630 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:02:44,388 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:02:45,173 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:02:45,935 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:02:46,079 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:02:46,848 WARN L191 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:02:48,232 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:02:49,005 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:02:49,128 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:02:49,878 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:02:51,246 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:02:52,009 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:02:52,128 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:02:52,877 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:02:54,345 WARN L191 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:02:55,101 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:02:55,222 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:02:55,978 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:02:57,344 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:02:58,098 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:02:58,239 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:02:58,988 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:02:59,742 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:03:00,505 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:03:00,620 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:03:01,385 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:03:02,189 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:03:02,963 WARN L191 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:03:03,083 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:03:03,854 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:03:05,167 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:03:05,931 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:03:06,053 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:03:06,841 WARN L191 SmtUtils]: Spent 786.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:03:08,152 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:03:08,924 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:03:09,044 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:03:09,819 WARN L191 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:03:11,139 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1267 DAG size of output: 1260 [2019-10-07 14:03:11,923 WARN L191 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:03:12,046 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:03:12,829 WARN L191 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:03:14,222 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1269 DAG size of output: 1262 [2019-10-07 14:03:15,002 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:03:15,123 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:03:15,901 WARN L191 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:03:17,303 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:03:18,073 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:03:18,207 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:03:18,984 WARN L191 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:03:20,353 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:03:21,127 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:03:21,255 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:03:22,036 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:03:22,817 WARN L191 SmtUtils]: Spent 777.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:03:23,581 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:03:23,695 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:03:24,460 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:03:25,877 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:03:26,646 WARN L191 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:03:26,767 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:03:27,548 WARN L191 SmtUtils]: Spent 778.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:03:29,250 WARN L191 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:03:30,027 WARN L191 SmtUtils]: Spent 774.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:03:30,148 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:03:30,916 WARN L191 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:03:32,224 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:03:33,013 WARN L191 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:03:33,129 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:03:33,907 WARN L191 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:03:35,285 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:03:36,060 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:03:36,188 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:03:36,963 WARN L191 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:03:38,288 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1264 DAG size of output: 1260 [2019-10-07 14:03:39,061 WARN L191 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:03:39,192 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:03:39,968 WARN L191 SmtUtils]: Spent 774.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:03:41,380 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1269 DAG size of output: 1260 [2019-10-07 14:03:42,151 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:03:42,272 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:03:43,046 WARN L191 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:03:44,359 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1264 DAG size of output: 1260 [2019-10-07 14:03:45,133 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:03:45,256 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:03:46,033 WARN L191 SmtUtils]: Spent 774.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:03:46,040 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 1118 for LOIs [2019-10-07 14:03:46,535 WARN L191 SmtUtils]: Spent 494.00 ms on a formula simplification that was a NOOP. DAG size: 1118 [2019-10-07 14:03:47,033 WARN L191 SmtUtils]: Spent 495.00 ms on a formula simplification that was a NOOP. DAG size: 1118 [2019-10-07 14:03:47,149 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:03:47,928 WARN L191 SmtUtils]: Spent 777.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:03:47,940 INFO L199 IcfgInterpreter]: Interpreting procedure test with input of size 1072 for LOIs [2019-10-07 14:03:48,383 WARN L191 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 1072 [2019-10-07 14:03:48,803 WARN L191 SmtUtils]: Spent 418.00 ms on a formula simplification that was a NOOP. DAG size: 1072 [2019-10-07 14:03:48,920 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:03:49,680 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:03:49,936 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:03:49,937 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.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 14:03:49,943 INFO L168 Benchmark]: Toolchain (without parser) took 303880.19 ms. Allocated memory was 140.5 MB in the beginning and 3.0 GB in the end (delta: 2.9 GB). Free memory was 102.0 MB in the beginning and 1.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2019-10-07 14:03:49,944 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 140.5 MB. Free memory is still 123.4 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-07 14:03:49,944 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1111.00 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 101.6 MB in the beginning and 142.4 MB in the end (delta: -40.7 MB). Peak memory consumption was 32.8 MB. Max. memory is 7.1 GB. [2019-10-07 14:03:49,944 INFO L168 Benchmark]: Boogie Preprocessor took 211.80 ms. Allocated memory is still 204.5 MB. Free memory was 142.4 MB in the beginning and 132.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2019-10-07 14:03:49,944 INFO L168 Benchmark]: RCFGBuilder took 4962.06 ms. Allocated memory was 204.5 MB in the beginning and 298.8 MB in the end (delta: 94.4 MB). Free memory was 132.4 MB in the beginning and 179.4 MB in the end (delta: -47.1 MB). Peak memory consumption was 147.5 MB. Max. memory is 7.1 GB. [2019-10-07 14:03:49,945 INFO L168 Benchmark]: TraceAbstraction took 297590.93 ms. Allocated memory was 298.8 MB in the beginning and 3.0 GB in the end (delta: 2.7 GB). Free memory was 179.4 MB in the beginning and 1.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2019-10-07 14:03:49,946 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 140.5 MB. Free memory is still 123.4 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1111.00 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 101.6 MB in the beginning and 142.4 MB in the end (delta: -40.7 MB). Peak memory consumption was 32.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 211.80 ms. Allocated memory is still 204.5 MB. Free memory was 142.4 MB in the beginning and 132.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4962.06 ms. Allocated memory was 204.5 MB in the beginning and 298.8 MB in the end (delta: 94.4 MB). Free memory was 132.4 MB in the beginning and 179.4 MB in the end (delta: -47.1 MB). Peak memory consumption was 147.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 297590.93 ms. Allocated memory was 298.8 MB in the beginning and 3.0 GB in the end (delta: 2.7 GB). Free memory was 179.4 MB in the beginning and 1.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.6 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...