java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/elevator_spec1_product01.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:04:08,685 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:04:08,687 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:04:08,699 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:04:08,700 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:04:08,701 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:04:08,702 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:04:08,704 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:04:08,706 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:04:08,707 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:04:08,708 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:04:08,709 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:04:08,709 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:04:08,710 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:04:08,711 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:04:08,712 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:04:08,713 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:04:08,714 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:04:08,716 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:04:08,717 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:04:08,719 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:04:08,720 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:04:08,721 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:04:08,722 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:04:08,724 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:04:08,724 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:04:08,725 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:04:08,726 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:04:08,726 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:04:08,727 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:04:08,727 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:04:08,728 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:04:08,729 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:04:08,730 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:04:08,731 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:04:08,731 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:04:08,732 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:04:08,732 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:04:08,732 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:04:08,733 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:04:08,734 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:04:08,735 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-07 14:04:08,751 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:04:08,751 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:04:08,753 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:04:08,753 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:04:08,753 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:04:08,753 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:04:08,754 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:04:08,754 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:04:08,754 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:04:08,754 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:04:08,754 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:04:08,755 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:04:08,755 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:04:08,755 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:04:08,755 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:04:08,755 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:04:08,756 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:04:08,756 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:04:08,756 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:04:08,756 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:04:08,756 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:04:08,757 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:04:08,757 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:04:08,757 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:04:08,757 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:04:08,757 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:04:08,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:04:08,758 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:04:08,758 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 14:04:09,058 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:04:09,072 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:04:09,076 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:04:09,077 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:04:09,078 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:04:09,079 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec1_product01.cil.c [2019-10-07 14:04:09,142 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06e08f970/c0f22c77639d4d26baaf2ab5478dabba/FLAG7ac10c686 [2019-10-07 14:04:09,800 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:04:09,801 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product01.cil.c [2019-10-07 14:04:09,821 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06e08f970/c0f22c77639d4d26baaf2ab5478dabba/FLAG7ac10c686 [2019-10-07 14:04:10,012 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06e08f970/c0f22c77639d4d26baaf2ab5478dabba [2019-10-07 14:04:10,023 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:04:10,025 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:04:10,026 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:04:10,026 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:04:10,031 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:04:10,032 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:04:10" (1/1) ... [2019-10-07 14:04:10,035 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7183b207 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:04:10, skipping insertion in model container [2019-10-07 14:04:10,035 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:04:10" (1/1) ... [2019-10-07 14:04:10,041 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:04:10,123 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:04:10,836 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:04:10,871 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:04:11,080 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:04:11,146 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:04:11,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:04:11 WrapperNode [2019-10-07 14:04:11,147 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:04:11,148 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:04:11,148 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:04:11,148 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:04:11,163 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:04:11" (1/1) ... [2019-10-07 14:04:11,164 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:04:11" (1/1) ... [2019-10-07 14:04:11,204 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:04:11" (1/1) ... [2019-10-07 14:04:11,206 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:04:11" (1/1) ... [2019-10-07 14:04:11,282 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:04:11" (1/1) ... [2019-10-07 14:04:11,304 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:04:11" (1/1) ... [2019-10-07 14:04:11,314 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:04:11" (1/1) ... [2019-10-07 14:04:11,348 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:04:11,349 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:04:11,349 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:04:11,349 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:04:11,350 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:04:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:04:11,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:04:11,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:04:11,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:04:11,452 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:04:11,453 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-07 14:04:11,454 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-07 14:04:11,455 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-07 14:04:11,455 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-07 14:04:11,455 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-07 14:04:11,455 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-07 14:04:11,456 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-07 14:04:11,457 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-07 14:04:11,457 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-07 14:04:11,457 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-07 14:04:11,457 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-07 14:04:11,458 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-07 14:04:11,460 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-07 14:04:11,460 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-07 14:04:11,460 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-07 14:04:11,460 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-07 14:04:11,461 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-07 14:04:11,462 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-07 14:04:11,462 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-07 14:04:11,462 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-07 14:04:11,462 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-07 14:04:11,462 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-07 14:04:11,463 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-07 14:04:11,463 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-07 14:04:11,463 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-07 14:04:11,463 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-07 14:04:11,463 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-07 14:04:11,463 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-07 14:04:11,464 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-07 14:04:11,464 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-07 14:04:11,465 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-07 14:04:11,465 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-07 14:04:11,465 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-07 14:04:11,465 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-07 14:04:11,465 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-07 14:04:11,466 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-07 14:04:11,466 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-07 14:04:11,466 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:04:11,466 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-07 14:04:11,466 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:04:11,466 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-07 14:04:11,467 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-07 14:04:11,467 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-07 14:04:11,467 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-07 14:04:11,467 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-07 14:04:11,467 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-07 14:04:11,467 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-07 14:04:11,468 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-07 14:04:11,468 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:04:11,468 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:04:11,469 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:04:11,469 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:04:11,469 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:04:11,469 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:04:11,470 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:04:11,470 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-07 14:04:11,470 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-07 14:04:11,470 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-07 14:04:11,471 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-07 14:04:11,471 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-07 14:04:11,471 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:04:11,471 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:04:11,471 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:04:11,471 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:04:11,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-10-07 14:04:11,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__2 [2019-10-07 14:04:11,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__3 [2019-10-07 14:04:11,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__4 [2019-10-07 14:04:11,472 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:04:11,473 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:04:11,473 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:04:11,474 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:04:11,474 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-07 14:04:11,474 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-07 14:04:11,475 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-07 14:04:11,475 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-07 14:04:11,475 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-07 14:04:11,476 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-07 14:04:11,476 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-07 14:04:11,476 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-07 14:04:11,476 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-07 14:04:11,476 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-07 14:04:11,477 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-07 14:04:11,477 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-07 14:04:11,478 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-07 14:04:11,478 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-07 14:04:11,478 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-07 14:04:11,478 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-07 14:04:11,478 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-07 14:04:11,478 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-07 14:04:11,479 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-07 14:04:11,479 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-07 14:04:11,479 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-07 14:04:11,479 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-07 14:04:11,479 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-07 14:04:11,480 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-07 14:04:11,480 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-07 14:04:11,480 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-07 14:04:11,480 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-07 14:04:11,480 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-07 14:04:11,480 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-07 14:04:11,481 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__3 [2019-10-07 14:04:11,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:04:11,481 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-07 14:04:11,481 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-07 14:04:11,482 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-07 14:04:11,482 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-07 14:04:11,482 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-07 14:04:11,482 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-07 14:04:11,482 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-07 14:04:11,482 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-07 14:04:11,483 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-07 14:04:11,483 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-07 14:04:11,483 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-07 14:04:11,484 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-07 14:04:11,484 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-07 14:04:11,484 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-07 14:04:11,485 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-07 14:04:11,485 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-07 14:04:11,485 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-07 14:04:11,486 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-07 14:04:11,486 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:04:11,487 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-10-07 14:04:11,487 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__4 [2019-10-07 14:04:11,487 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:04:11,487 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-07 14:04:11,487 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:04:11,488 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:04:11,488 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:04:11,489 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:04:11,492 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-07 14:04:11,492 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__2 [2019-10-07 14:04:11,492 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:04:11,493 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:04:11,493 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:04:11,493 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:04:11,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:04:11,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:04:11,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:04:11,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:04:11,502 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:04:11,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:04:11,502 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:04:11,503 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:04:11,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:04:11,504 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:04:11,504 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:04:11,504 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:04:11,505 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-07 14:04:11,505 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-07 14:04:11,505 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-07 14:04:11,505 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:04:11,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:04:11,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:04:11,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:04:16,370 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:04:16,370 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-07 14:04:16,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:04:16 BoogieIcfgContainer [2019-10-07 14:04:16,372 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:04:16,375 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:04:16,375 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:04:16,378 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:04:16,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:04:10" (1/3) ... [2019-10-07 14:04:16,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75890b56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:04:16, skipping insertion in model container [2019-10-07 14:04:16,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:04:11" (2/3) ... [2019-10-07 14:04:16,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75890b56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:04:16, skipping insertion in model container [2019-10-07 14:04:16,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:04:16" (3/3) ... [2019-10-07 14:04:16,381 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product01.cil.c [2019-10-07 14:04:16,389 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:04:16,398 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:04:16,410 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:04:16,441 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:04:16,442 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:04:16,442 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:04:16,442 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:04:16,442 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:04:16,442 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:04:16,442 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:04:16,442 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:04:16,475 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states. [2019-10-07 14:04:16,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2019-10-07 14:04:16,496 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:04:16,497 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:04:16,499 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:04:16,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:04:16,506 INFO L82 PathProgramCache]: Analyzing trace with hash -40033435, now seen corresponding path program 1 times [2019-10-07 14:04:16,515 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:04:16,515 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:04:16,516 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:04:16,516 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:04:16,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:04:16,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:04:17,309 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:04:17,310 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:04:17,310 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:04:17,311 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-07 14:04:17,315 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 14:04:17,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 14:04:17,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:04:17,333 INFO L87 Difference]: Start difference. First operand 531 states. Second operand 8 states. [2019-10-07 14:04:17,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:04:17,579 INFO L93 Difference]: Finished difference Result 815 states and 1272 transitions. [2019-10-07 14:04:17,579 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 14:04:17,581 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 115 [2019-10-07 14:04:17,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:04:17,614 INFO L225 Difference]: With dead ends: 815 [2019-10-07 14:04:17,614 INFO L226 Difference]: Without dead ends: 445 [2019-10-07 14:04:17,627 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 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 14:04:17,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2019-10-07 14:04:17,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 410. [2019-10-07 14:04:17,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 410 states. [2019-10-07 14:04:17,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 617 transitions. [2019-10-07 14:04:17,751 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 617 transitions. Word has length 115 [2019-10-07 14:04:17,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:04:17,752 INFO L462 AbstractCegarLoop]: Abstraction has 410 states and 617 transitions. [2019-10-07 14:04:17,752 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 14:04:17,752 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 617 transitions. [2019-10-07 14:04:17,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2019-10-07 14:04:17,761 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:04:17,762 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:04:17,762 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:04:17,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:04:17,763 INFO L82 PathProgramCache]: Analyzing trace with hash 1153139607, now seen corresponding path program 1 times [2019-10-07 14:04:17,763 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:04:17,763 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:04:17,763 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:04:17,763 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:04:17,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:04:17,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:04:18,125 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:04:18,126 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:04:18,126 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:04:18,127 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 14:04:18,138 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:04:18,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:04:18,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:04:18,191 INFO L87 Difference]: Start difference. First operand 410 states and 617 transitions. Second operand 7 states. [2019-10-07 14:04:21,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:04:21,635 INFO L93 Difference]: Finished difference Result 1239 states and 1934 transitions. [2019-10-07 14:04:21,635 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-07 14:04:21,635 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 120 [2019-10-07 14:04:21,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:04:21,645 INFO L225 Difference]: With dead ends: 1239 [2019-10-07 14:04:21,646 INFO L226 Difference]: Without dead ends: 882 [2019-10-07 14:04:21,648 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2019-10-07 14:04:21,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2019-10-07 14:04:21,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 855. [2019-10-07 14:04:21,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 855 states. [2019-10-07 14:04:21,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1336 transitions. [2019-10-07 14:04:21,747 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 1336 transitions. Word has length 120 [2019-10-07 14:04:21,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:04:21,748 INFO L462 AbstractCegarLoop]: Abstraction has 855 states and 1336 transitions. [2019-10-07 14:04:21,749 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:04:21,749 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 1336 transitions. [2019-10-07 14:04:21,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2019-10-07 14:04:21,755 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:04:21,755 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:04:21,755 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:04:21,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:04:21,756 INFO L82 PathProgramCache]: Analyzing trace with hash -93620798, now seen corresponding path program 1 times [2019-10-07 14:04:21,756 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:04:21,756 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:04:21,757 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:04:21,757 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:04:21,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:04:21,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:04:21,957 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:04:21,957 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:04:21,958 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:04:21,958 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 14:04:21,958 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 14:04:21,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 14:04:21,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:04:21,959 INFO L87 Difference]: Start difference. First operand 855 states and 1336 transitions. Second operand 5 states. [2019-10-07 14:04:22,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:04:22,035 INFO L93 Difference]: Finished difference Result 1349 states and 2122 transitions. [2019-10-07 14:04:22,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:04:22,036 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 124 [2019-10-07 14:04:22,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:04:22,044 INFO L225 Difference]: With dead ends: 1349 [2019-10-07 14:04:22,044 INFO L226 Difference]: Without dead ends: 877 [2019-10-07 14:04:22,046 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:04:22,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 877 states. [2019-10-07 14:04:22,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 877 to 867. [2019-10-07 14:04:22,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 867 states. [2019-10-07 14:04:22,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1351 transitions. [2019-10-07 14:04:22,110 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1351 transitions. Word has length 124 [2019-10-07 14:04:22,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:04:22,111 INFO L462 AbstractCegarLoop]: Abstraction has 867 states and 1351 transitions. [2019-10-07 14:04:22,111 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 14:04:22,111 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1351 transitions. [2019-10-07 14:04:22,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2019-10-07 14:04:22,115 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:04:22,115 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:04:22,116 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:04:22,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:04:22,116 INFO L82 PathProgramCache]: Analyzing trace with hash 1097035034, now seen corresponding path program 1 times [2019-10-07 14:04:22,117 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:04:22,117 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:04:22,117 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:04:22,117 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:04:22,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:04:22,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:04:22,447 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:04:22,447 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:04:22,447 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:04:22,448 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-07 14:04:22,448 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 14:04:22,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 14:04:22,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:04:22,449 INFO L87 Difference]: Start difference. First operand 867 states and 1351 transitions. Second operand 8 states. [2019-10-07 14:04:25,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:04:25,992 INFO L93 Difference]: Finished difference Result 1828 states and 2856 transitions. [2019-10-07 14:04:25,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 14:04:25,993 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 128 [2019-10-07 14:04:25,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:04:26,002 INFO L225 Difference]: With dead ends: 1828 [2019-10-07 14:04:26,002 INFO L226 Difference]: Without dead ends: 1248 [2019-10-07 14:04:26,006 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-10-07 14:04:26,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1248 states. [2019-10-07 14:04:26,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1248 to 1198. [2019-10-07 14:04:26,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1198 states. [2019-10-07 14:04:26,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1198 states to 1198 states and 1828 transitions. [2019-10-07 14:04:26,081 INFO L78 Accepts]: Start accepts. Automaton has 1198 states and 1828 transitions. Word has length 128 [2019-10-07 14:04:26,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:04:26,082 INFO L462 AbstractCegarLoop]: Abstraction has 1198 states and 1828 transitions. [2019-10-07 14:04:26,082 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 14:04:26,083 INFO L276 IsEmpty]: Start isEmpty. Operand 1198 states and 1828 transitions. [2019-10-07 14:04:26,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2019-10-07 14:04:26,087 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:04:26,088 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:04:26,088 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:04:26,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:04:26,089 INFO L82 PathProgramCache]: Analyzing trace with hash 1289851637, now seen corresponding path program 1 times [2019-10-07 14:04:26,089 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:04:26,089 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:04:26,089 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:04:26,089 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:04:26,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:04:26,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:04:26,295 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:04:26,295 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:04:26,296 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:04:26,296 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 14:04:26,297 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:04:26,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:04:26,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:04:26,298 INFO L87 Difference]: Start difference. First operand 1198 states and 1828 transitions. Second operand 7 states. [2019-10-07 14:04:26,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:04:26,517 INFO L93 Difference]: Finished difference Result 2253 states and 3521 transitions. [2019-10-07 14:04:26,518 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 14:04:26,518 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 131 [2019-10-07 14:04:26,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:04:26,536 INFO L225 Difference]: With dead ends: 2253 [2019-10-07 14:04:26,536 INFO L226 Difference]: Without dead ends: 1198 [2019-10-07 14:04:26,544 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:04:26,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1198 states. [2019-10-07 14:04:26,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1198 to 1198. [2019-10-07 14:04:26,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1198 states. [2019-10-07 14:04:26,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1198 states to 1198 states and 1796 transitions. [2019-10-07 14:04:26,702 INFO L78 Accepts]: Start accepts. Automaton has 1198 states and 1796 transitions. Word has length 131 [2019-10-07 14:04:26,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:04:26,703 INFO L462 AbstractCegarLoop]: Abstraction has 1198 states and 1796 transitions. [2019-10-07 14:04:26,703 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:04:26,703 INFO L276 IsEmpty]: Start isEmpty. Operand 1198 states and 1796 transitions. [2019-10-07 14:04:26,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2019-10-07 14:04:26,706 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:04:26,706 INFO L385 BasicCegarLoop]: trace histogram [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 14:04:26,706 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:04:26,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:04:26,707 INFO L82 PathProgramCache]: Analyzing trace with hash 1713093847, now seen corresponding path program 1 times [2019-10-07 14:04:26,707 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:04:26,707 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:04:26,707 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:04:26,708 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:04:26,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:04:26,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:04:26,914 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:04:26,916 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:04:26,917 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:04:26,917 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 14:04:26,918 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:04:26,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:04:26,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:04:26,919 INFO L87 Difference]: Start difference. First operand 1198 states and 1796 transitions. Second operand 7 states. [2019-10-07 14:04:29,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:04:29,844 INFO L93 Difference]: Finished difference Result 2122 states and 3191 transitions. [2019-10-07 14:04:29,845 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-07 14:04:29,846 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 133 [2019-10-07 14:04:29,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:04:29,855 INFO L225 Difference]: With dead ends: 2122 [2019-10-07 14:04:29,855 INFO L226 Difference]: Without dead ends: 1268 [2019-10-07 14:04:29,859 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-10-07 14:04:29,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1268 states. [2019-10-07 14:04:29,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1268 to 1225. [2019-10-07 14:04:29,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1225 states. [2019-10-07 14:04:29,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1225 states to 1225 states and 1830 transitions. [2019-10-07 14:04:29,919 INFO L78 Accepts]: Start accepts. Automaton has 1225 states and 1830 transitions. Word has length 133 [2019-10-07 14:04:29,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:04:29,920 INFO L462 AbstractCegarLoop]: Abstraction has 1225 states and 1830 transitions. [2019-10-07 14:04:29,920 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:04:29,920 INFO L276 IsEmpty]: Start isEmpty. Operand 1225 states and 1830 transitions. [2019-10-07 14:04:29,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2019-10-07 14:04:29,923 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:04:29,923 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:04:29,923 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:04:29,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:04:29,924 INFO L82 PathProgramCache]: Analyzing trace with hash -1455499114, now seen corresponding path program 1 times [2019-10-07 14:04:29,924 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:04:29,924 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:04:29,924 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:04:29,924 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:04:29,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:04:29,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:04:30,504 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-07 14:04:30,505 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:04:30,505 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:04:30,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:04:31,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:04:31,187 INFO L256 TraceCheckSpWp]: Trace formula consists of 3182 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-07 14:04:31,204 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:04:31,350 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 14:04:31,350 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:04:31,791 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 14:04:31,792 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:04:31,792 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [26] total 33 [2019-10-07 14:04:31,793 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 14:04:31,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 14:04:31,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=933, Unknown=0, NotChecked=0, Total=1056 [2019-10-07 14:04:31,794 INFO L87 Difference]: Start difference. First operand 1225 states and 1830 transitions. Second operand 9 states. [2019-10-07 14:04:33,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:04:33,053 INFO L93 Difference]: Finished difference Result 1299 states and 1944 transitions. [2019-10-07 14:04:33,054 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 14:04:33,054 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 137 [2019-10-07 14:04:33,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:04:33,066 INFO L225 Difference]: With dead ends: 1299 [2019-10-07 14:04:33,066 INFO L226 Difference]: Without dead ends: 1282 [2019-10-07 14:04:33,069 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 285 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 362 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=137, Invalid=1053, Unknown=0, NotChecked=0, Total=1190 [2019-10-07 14:04:33,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1282 states. [2019-10-07 14:04:33,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1282 to 1252. [2019-10-07 14:04:33,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1252 states. [2019-10-07 14:04:33,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1252 states to 1252 states and 1869 transitions. [2019-10-07 14:04:33,160 INFO L78 Accepts]: Start accepts. Automaton has 1252 states and 1869 transitions. Word has length 137 [2019-10-07 14:04:33,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:04:33,162 INFO L462 AbstractCegarLoop]: Abstraction has 1252 states and 1869 transitions. [2019-10-07 14:04:33,162 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 14:04:33,162 INFO L276 IsEmpty]: Start isEmpty. Operand 1252 states and 1869 transitions. [2019-10-07 14:04:33,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-10-07 14:04:33,165 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:04:33,165 INFO L385 BasicCegarLoop]: trace histogram [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 14:04:33,375 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:04:33,375 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:04:33,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:04:33,376 INFO L82 PathProgramCache]: Analyzing trace with hash 1524031560, now seen corresponding path program 1 times [2019-10-07 14:04:33,376 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:04:33,376 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:04:33,377 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:04:33,377 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:04:33,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:04:33,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:04:33,655 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:04:33,655 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:04:33,655 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:04:33,655 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-07 14:04:33,656 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 14:04:33,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 14:04:33,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:04:33,657 INFO L87 Difference]: Start difference. First operand 1252 states and 1869 transitions. Second operand 8 states. [2019-10-07 14:04:33,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:04:33,872 INFO L93 Difference]: Finished difference Result 1269 states and 1889 transitions. [2019-10-07 14:04:33,872 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-07 14:04:33,873 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 145 [2019-10-07 14:04:33,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:04:33,881 INFO L225 Difference]: With dead ends: 1269 [2019-10-07 14:04:33,881 INFO L226 Difference]: Without dead ends: 1252 [2019-10-07 14:04:33,882 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-07 14:04:33,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1252 states. [2019-10-07 14:04:33,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1252 to 1252. [2019-10-07 14:04:33,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1252 states. [2019-10-07 14:04:33,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1252 states to 1252 states and 1864 transitions. [2019-10-07 14:04:33,951 INFO L78 Accepts]: Start accepts. Automaton has 1252 states and 1864 transitions. Word has length 145 [2019-10-07 14:04:33,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:04:33,951 INFO L462 AbstractCegarLoop]: Abstraction has 1252 states and 1864 transitions. [2019-10-07 14:04:33,952 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 14:04:33,952 INFO L276 IsEmpty]: Start isEmpty. Operand 1252 states and 1864 transitions. [2019-10-07 14:04:33,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-10-07 14:04:33,955 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:04:33,956 INFO L385 BasicCegarLoop]: trace histogram [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 14:04:33,956 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:04:33,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:04:33,956 INFO L82 PathProgramCache]: Analyzing trace with hash -1316825584, now seen corresponding path program 1 times [2019-10-07 14:04:33,957 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:04:33,957 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:04:33,957 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:04:33,957 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:04:33,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:04:34,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:04:34,540 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-07 14:04:34,541 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:04:34,541 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:04:34,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:04:35,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:04:35,345 INFO L256 TraceCheckSpWp]: Trace formula consists of 3265 conjuncts, 13 conjunts are in the unsatisfiable core [2019-10-07 14:04:35,357 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:04:35,422 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:04:35,513 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 14:04:35,513 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:04:35,821 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:04:36,143 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 14:04:36,144 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:04:36,144 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [26] total 31 [2019-10-07 14:04:36,144 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:04:36,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:04:36,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=822, Unknown=0, NotChecked=0, Total=930 [2019-10-07 14:04:36,145 INFO L87 Difference]: Start difference. First operand 1252 states and 1864 transitions. Second operand 7 states. [2019-10-07 14:04:36,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:04:36,231 INFO L93 Difference]: Finished difference Result 1293 states and 1915 transitions. [2019-10-07 14:04:36,233 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 14:04:36,233 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 160 [2019-10-07 14:04:36,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:04:36,242 INFO L225 Difference]: With dead ends: 1293 [2019-10-07 14:04:36,242 INFO L226 Difference]: Without dead ends: 1276 [2019-10-07 14:04:36,244 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 334 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 335 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=112, Invalid=880, Unknown=0, NotChecked=0, Total=992 [2019-10-07 14:04:36,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1276 states. [2019-10-07 14:04:36,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1276 to 1274. [2019-10-07 14:04:36,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1274 states. [2019-10-07 14:04:36,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 1888 transitions. [2019-10-07 14:04:36,304 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 1888 transitions. Word has length 160 [2019-10-07 14:04:36,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:04:36,305 INFO L462 AbstractCegarLoop]: Abstraction has 1274 states and 1888 transitions. [2019-10-07 14:04:36,305 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:04:36,305 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 1888 transitions. [2019-10-07 14:04:36,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-10-07 14:04:36,310 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:04:36,310 INFO L385 BasicCegarLoop]: trace histogram [7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:04:36,518 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:04:36,518 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:04:36,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:04:36,519 INFO L82 PathProgramCache]: Analyzing trace with hash 1251866636, now seen corresponding path program 1 times [2019-10-07 14:04:36,520 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:04:36,520 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:04:36,520 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:04:36,520 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:04:36,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:04:36,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:04:36,808 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-07 14:04:36,808 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:04:36,808 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:04:36,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:04:37,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:04:37,484 INFO L256 TraceCheckSpWp]: Trace formula consists of 3304 conjuncts, 21 conjunts are in the unsatisfiable core [2019-10-07 14:04:37,497 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:04:37,735 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 35 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 14:04:37,735 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:04:38,091 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:04:38,378 WARN L191 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2019-10-07 14:04:38,584 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:04:39,009 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:04:39,406 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:04:39,820 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:04:40,213 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:04:40,647 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:04:41,049 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:04:41,524 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:04:41,923 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:04:41,952 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:04:41,953 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:04:41,953 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:04:41,954 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:04:41,955 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:04:42,060 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2019-10-07 14:04:42,061 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:04:42,091 INFO L162 IcfgInterpreter]: Started Sifa with 155 locations of interest [2019-10-07 14:04:42,091 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:04:42,097 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:04:42,103 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:04:42,103 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:05:22,519 WARN L191 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 758 [2019-10-07 14:05:27,478 WARN L191 SmtUtils]: Spent 2.25 s on a formula simplification. DAG size of input: 405 DAG size of output: 327 [2019-10-07 14:05:27,937 WARN L191 SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 844 [2019-10-07 14:05:28,501 WARN L191 SmtUtils]: Spent 558.00 ms on a formula simplification that was a NOOP. DAG size: 844 [2019-10-07 14:05:29,009 WARN L191 SmtUtils]: Spent 503.00 ms on a formula simplification that was a NOOP. DAG size: 844 [2019-10-07 14:05:29,647 WARN L191 SmtUtils]: Spent 517.00 ms on a formula simplification that was a NOOP. DAG size: 1028 [2019-10-07 14:05:30,191 WARN L191 SmtUtils]: Spent 467.00 ms on a formula simplification that was a NOOP. DAG size: 1028 [2019-10-07 14:05:30,647 WARN L191 SmtUtils]: Spent 453.00 ms on a formula simplification that was a NOOP. DAG size: 1028 [2019-10-07 14:05:31,208 WARN L191 SmtUtils]: Spent 489.00 ms on a formula simplification that was a NOOP. DAG size: 1028 [2019-10-07 14:05:32,121 WARN L191 SmtUtils]: Spent 895.00 ms on a formula simplification. DAG size of input: 1030 DAG size of output: 1028 [2019-10-07 14:05:32,554 WARN L191 SmtUtils]: Spent 430.00 ms on a formula simplification that was a NOOP. DAG size: 1028 [2019-10-07 14:05:33,045 WARN L191 SmtUtils]: Spent 428.00 ms on a formula simplification that was a NOOP. DAG size: 1028 [2019-10-07 14:05:33,534 WARN L191 SmtUtils]: Spent 486.00 ms on a formula simplification that was a NOOP. DAG size: 1028 [2019-10-07 14:05:33,972 WARN L191 SmtUtils]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 1028 [2019-10-07 14:05:34,452 WARN L191 SmtUtils]: Spent 431.00 ms on a formula simplification that was a NOOP. DAG size: 1028 [2019-10-07 14:05:34,472 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 382 for LOIs [2019-10-07 14:05:34,815 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 727 [2019-10-07 14:05:34,927 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 727 [2019-10-07 14:05:35,272 WARN L191 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 911 [2019-10-07 14:05:35,273 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1078 for LOIs [2019-10-07 14:05:35,709 WARN L191 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 1078 [2019-10-07 14:05:36,147 WARN L191 SmtUtils]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 1078 [2019-10-07 14:05:36,313 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:05:37,033 WARN L191 SmtUtils]: Spent 718.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:05:37,464 WARN L191 SmtUtils]: Spent 420.00 ms on a formula simplification that was a NOOP. DAG size: 1078 [2019-10-07 14:05:37,935 WARN L191 SmtUtils]: Spent 468.00 ms on a formula simplification that was a NOOP. DAG size: 1078 [2019-10-07 14:05:38,052 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:05:38,770 WARN L191 SmtUtils]: Spent 716.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:05:39,269 WARN L191 SmtUtils]: Spent 467.00 ms on a formula simplification that was a NOOP. DAG size: 1078 [2019-10-07 14:05:39,742 WARN L191 SmtUtils]: Spent 470.00 ms on a formula simplification that was a NOOP. DAG size: 1078 [2019-10-07 14:05:39,980 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:05:40,717 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:05:41,563 WARN L191 SmtUtils]: Spent 820.00 ms on a formula simplification. DAG size of input: 1246 DAG size of output: 1078 [2019-10-07 14:05:41,993 WARN L191 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 1078 [2019-10-07 14:05:42,186 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:05:42,924 WARN L191 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:05:43,413 WARN L191 SmtUtils]: Spent 473.00 ms on a formula simplification that was a NOOP. DAG size: 1078 [2019-10-07 14:05:43,837 WARN L191 SmtUtils]: Spent 421.00 ms on a formula simplification that was a NOOP. DAG size: 1078 [2019-10-07 14:05:43,950 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:05:44,663 WARN L191 SmtUtils]: Spent 711.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:05:45,126 WARN L191 SmtUtils]: Spent 460.00 ms on a formula simplification that was a NOOP. DAG size: 1078 [2019-10-07 14:05:45,552 WARN L191 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 1078 [2019-10-07 14:05:45,663 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:05:46,379 WARN L191 SmtUtils]: Spent 714.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:05:47,329 WARN L191 SmtUtils]: Spent 947.00 ms on a formula simplification that was a NOOP. DAG size: 1078 [2019-10-07 14:05:47,762 WARN L191 SmtUtils]: Spent 430.00 ms on a formula simplification that was a NOOP. DAG size: 1078 [2019-10-07 14:05:47,874 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:05:48,589 WARN L191 SmtUtils]: Spent 713.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:05:49,015 WARN L191 SmtUtils]: Spent 424.00 ms on a formula simplification that was a NOOP. DAG size: 1078 [2019-10-07 14:05:49,440 WARN L191 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 1078 [2019-10-07 14:05:49,553 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:05:50,271 WARN L191 SmtUtils]: Spent 716.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:05:50,698 WARN L191 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 1078 [2019-10-07 14:05:51,129 WARN L191 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 1078 [2019-10-07 14:05:51,243 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:05:51,986 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:05:52,412 WARN L191 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 1078 [2019-10-07 14:05:52,848 WARN L191 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 1078 [2019-10-07 14:05:52,960 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:05:53,680 WARN L191 SmtUtils]: Spent 717.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:05:54,105 WARN L191 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 1078 [2019-10-07 14:05:54,528 WARN L191 SmtUtils]: Spent 421.00 ms on a formula simplification that was a NOOP. DAG size: 1078 [2019-10-07 14:05:54,642 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:05:55,358 WARN L191 SmtUtils]: Spent 714.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:05:55,789 WARN L191 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 1078 [2019-10-07 14:05:56,243 WARN L191 SmtUtils]: Spent 451.00 ms on a formula simplification that was a NOOP. DAG size: 1078 [2019-10-07 14:05:56,357 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:05:57,073 WARN L191 SmtUtils]: Spent 715.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:05:57,498 WARN L191 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 1078 [2019-10-07 14:05:57,937 WARN L191 SmtUtils]: Spent 436.00 ms on a formula simplification that was a NOOP. DAG size: 1078 [2019-10-07 14:05:58,049 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:05:58,762 WARN L191 SmtUtils]: Spent 711.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:05:59,535 WARN L191 SmtUtils]: Spent 722.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:06:00,260 WARN L191 SmtUtils]: Spent 722.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:06:00,375 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:06:01,120 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:06:02,980 WARN L191 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 1246 DAG size of output: 1244 [2019-10-07 14:06:03,704 WARN L191 SmtUtils]: Spent 720.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:06:03,823 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:06:04,540 WARN L191 SmtUtils]: Spent 715.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:06:05,256 WARN L191 SmtUtils]: Spent 713.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:06:05,981 WARN L191 SmtUtils]: Spent 722.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:06:06,101 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:06:06,818 WARN L191 SmtUtils]: Spent 715.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:06:08,188 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification that was a NOOP. DAG size: 1246 [2019-10-07 14:06:08,908 WARN L191 SmtUtils]: Spent 717.00 ms on a formula simplification that was a NOOP. DAG size: 1246 [2019-10-07 14:06:09,030 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:06:09,752 WARN L191 SmtUtils]: Spent 720.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:10,494 WARN L191 SmtUtils]: Spent 723.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:11,223 WARN L191 SmtUtils]: Spent 726.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:11,348 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:06:12,088 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:13,319 WARN L191 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1246 [2019-10-07 14:06:14,042 WARN L191 SmtUtils]: Spent 720.00 ms on a formula simplification that was a NOOP. DAG size: 1246 [2019-10-07 14:06:14,156 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:06:14,881 WARN L191 SmtUtils]: Spent 723.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:15,939 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1246 [2019-10-07 14:06:16,670 WARN L191 SmtUtils]: Spent 726.00 ms on a formula simplification that was a NOOP. DAG size: 1246 [2019-10-07 14:06:16,790 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:06:17,528 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:18,259 WARN L191 SmtUtils]: Spent 726.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:18,988 WARN L191 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:19,106 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:06:19,840 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:06:20,590 WARN L191 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:21,323 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:21,441 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:06:22,172 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:06:23,418 WARN L191 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 1252 DAG size of output: 1248 [2019-10-07 14:06:24,147 WARN L191 SmtUtils]: Spent 726.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:24,270 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:06:25,005 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:06:25,727 WARN L191 SmtUtils]: Spent 719.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:26,461 WARN L191 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:26,576 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:06:27,307 WARN L191 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:06:28,651 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1246 DAG size of output: 1244 [2019-10-07 14:06:29,378 WARN L191 SmtUtils]: Spent 724.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:06:29,498 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:06:30,213 WARN L191 SmtUtils]: Spent 713.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:06:31,538 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1246 DAG size of output: 1244 [2019-10-07 14:06:32,268 WARN L191 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:06:32,386 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:06:33,119 WARN L191 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:06:33,848 WARN L191 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:06:34,571 WARN L191 SmtUtils]: Spent 720.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:06:34,684 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:06:35,407 WARN L191 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:06:36,193 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:36,927 WARN L191 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:37,047 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:06:37,773 WARN L191 SmtUtils]: Spent 724.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:38,511 WARN L191 SmtUtils]: Spent 724.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:39,247 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:39,366 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:06:40,093 WARN L191 SmtUtils]: Spent 726.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:40,820 WARN L191 SmtUtils]: Spent 724.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:41,554 WARN L191 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:41,670 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:06:42,402 WARN L191 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:43,636 WARN L191 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1246 [2019-10-07 14:06:44,371 WARN L191 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 1246 [2019-10-07 14:06:44,490 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:06:45,223 WARN L191 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:46,447 WARN L191 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 1252 DAG size of output: 1248 [2019-10-07 14:06:47,182 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:47,302 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:06:48,037 WARN L191 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:06:49,370 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1246 DAG size of output: 1244 [2019-10-07 14:06:50,105 WARN L191 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:06:50,225 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:06:50,947 WARN L191 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:06:52,280 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1246 DAG size of output: 1244 [2019-10-07 14:06:53,008 WARN L191 SmtUtils]: Spent 725.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:06:53,126 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:06:53,849 WARN L191 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:06:54,573 WARN L191 SmtUtils]: Spent 720.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:06:55,304 WARN L191 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:06:55,417 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:06:56,140 WARN L191 SmtUtils]: Spent 720.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:06:57,472 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1246 DAG size of output: 1244 [2019-10-07 14:06:58,197 WARN L191 SmtUtils]: Spent 723.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:06:58,318 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:06:59,040 WARN L191 SmtUtils]: Spent 720.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:07:00,335 WARN L191 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 1246 DAG size of output: 1244 [2019-10-07 14:07:01,067 WARN L191 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:07:01,188 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:07:01,909 WARN L191 SmtUtils]: Spent 720.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:07:02,636 WARN L191 SmtUtils]: Spent 723.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:07:03,353 WARN L191 SmtUtils]: Spent 714.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:07:03,465 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:07:04,183 WARN L191 SmtUtils]: Spent 716.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:07:05,523 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:07:06,254 WARN L191 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:06,383 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:07:07,116 WARN L191 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:07,872 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:08,604 WARN L191 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:08,739 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:07:09,466 WARN L191 SmtUtils]: Spent 725.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:10,776 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:07:11,505 WARN L191 SmtUtils]: Spent 725.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:11,619 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:07:12,353 WARN L191 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:13,670 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1255 DAG size of output: 1248 [2019-10-07 14:07:14,395 WARN L191 SmtUtils]: Spent 723.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:14,516 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:07:15,242 WARN L191 SmtUtils]: Spent 724.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:16,549 WARN L191 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 1246 DAG size of output: 1244 [2019-10-07 14:07:17,261 WARN L191 SmtUtils]: Spent 709.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:07:17,378 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:07:18,120 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:07:19,414 WARN L191 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 1246 DAG size of output: 1244 [2019-10-07 14:07:20,132 WARN L191 SmtUtils]: Spent 715.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:07:20,253 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:07:20,977 WARN L191 SmtUtils]: Spent 723.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:07:21,700 WARN L191 SmtUtils]: Spent 720.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:07:22,419 WARN L191 SmtUtils]: Spent 716.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:07:22,531 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:07:23,257 WARN L191 SmtUtils]: Spent 724.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:07:24,050 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:24,780 WARN L191 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:24,905 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:07:25,637 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:26,371 WARN L191 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:27,096 WARN L191 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:27,218 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:07:27,947 WARN L191 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:28,668 WARN L191 SmtUtils]: Spent 719.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:29,402 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:29,516 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:07:30,246 WARN L191 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:31,467 WARN L191 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1246 [2019-10-07 14:07:32,187 WARN L191 SmtUtils]: Spent 717.00 ms on a formula simplification that was a NOOP. DAG size: 1246 [2019-10-07 14:07:32,323 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:07:33,060 WARN L191 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:34,293 WARN L191 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 1252 DAG size of output: 1248 [2019-10-07 14:07:35,021 WARN L191 SmtUtils]: Spent 724.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:35,153 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:07:35,885 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:07:37,134 WARN L191 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 1252 DAG size of output: 1248 [2019-10-07 14:07:37,861 WARN L191 SmtUtils]: Spent 724.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:37,982 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:07:38,721 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:07:39,964 WARN L191 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 1252 DAG size of output: 1248 [2019-10-07 14:07:40,694 WARN L191 SmtUtils]: Spent 726.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:40,812 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:07:41,540 WARN L191 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:07:42,860 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1246 DAG size of output: 1244 [2019-10-07 14:07:43,583 WARN L191 SmtUtils]: Spent 720.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:07:43,699 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:07:44,415 WARN L191 SmtUtils]: Spent 714.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:07:45,706 WARN L191 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 1246 DAG size of output: 1244 [2019-10-07 14:07:46,416 WARN L191 SmtUtils]: Spent 708.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:07:46,532 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:07:47,244 WARN L191 SmtUtils]: Spent 709.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:07:47,970 WARN L191 SmtUtils]: Spent 724.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:07:48,701 WARN L191 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:07:48,814 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:07:49,532 WARN L191 SmtUtils]: Spent 716.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:07:50,291 WARN L191 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:51,023 WARN L191 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:51,142 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:07:51,865 WARN L191 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:52,609 WARN L191 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:53,328 WARN L191 SmtUtils]: Spent 716.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:53,451 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:07:54,183 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:54,913 WARN L191 SmtUtils]: Spent 726.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:55,649 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:55,762 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:07:56,479 WARN L191 SmtUtils]: Spent 715.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:57,697 WARN L191 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1246 [2019-10-07 14:07:58,431 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 1246 [2019-10-07 14:07:58,549 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:07:59,273 WARN L191 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:08:00,506 WARN L191 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 1252 DAG size of output: 1248 [2019-10-07 14:08:01,236 WARN L191 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:08:01,359 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:08:02,086 WARN L191 SmtUtils]: Spent 724.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:08:03,395 WARN L191 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 1246 DAG size of output: 1244 [2019-10-07 14:08:04,114 WARN L191 SmtUtils]: Spent 716.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:08:04,231 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:08:04,944 WARN L191 SmtUtils]: Spent 711.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:08:06,260 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1246 DAG size of output: 1244 [2019-10-07 14:08:06,984 WARN L191 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:08:07,102 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:08:07,824 WARN L191 SmtUtils]: Spent 720.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:08:09,144 WARN L191 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 1246 DAG size of output: 1244 [2019-10-07 14:08:09,860 WARN L191 SmtUtils]: Spent 714.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:08:09,984 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:08:10,701 WARN L191 SmtUtils]: Spent 714.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:08:12,255 WARN L191 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 1246 DAG size of output: 1244 [2019-10-07 14:08:12,977 WARN L191 SmtUtils]: Spent 719.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:08:13,093 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:08:13,808 WARN L191 SmtUtils]: Spent 713.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:08:14,531 WARN L191 SmtUtils]: Spent 720.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:08:15,241 WARN L191 SmtUtils]: Spent 707.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:08:15,351 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:08:16,060 WARN L191 SmtUtils]: Spent 708.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:08:16,808 WARN L191 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:08:17,523 WARN L191 SmtUtils]: Spent 713.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:08:17,640 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:08:18,356 WARN L191 SmtUtils]: Spent 714.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:08:19,121 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:08:19,840 WARN L191 SmtUtils]: Spent 716.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:08:19,957 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:08:20,679 WARN L191 SmtUtils]: Spent 720.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:08:20,686 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 1102 for LOIs [2019-10-07 14:08:21,140 WARN L191 SmtUtils]: Spent 453.00 ms on a formula simplification that was a NOOP. DAG size: 1102 [2019-10-07 14:08:21,597 WARN L191 SmtUtils]: Spent 454.00 ms on a formula simplification that was a NOOP. DAG size: 1102 [2019-10-07 14:08:21,716 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:08:22,423 WARN L191 SmtUtils]: Spent 705.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:08:22,943 WARN L191 SmtUtils]: Spent 488.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:08:23,416 WARN L191 SmtUtils]: Spent 470.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:08:23,528 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:08:24,242 WARN L191 SmtUtils]: Spent 712.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:08:25,066 WARN L191 SmtUtils]: Spent 800.00 ms on a formula simplification. DAG size of input: 1246 DAG size of output: 1112 [2019-10-07 14:08:25,562 WARN L191 SmtUtils]: Spent 492.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:08:25,681 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:08:26,383 WARN L191 SmtUtils]: Spent 700.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:08:26,866 WARN L191 SmtUtils]: Spent 468.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:08:27,340 WARN L191 SmtUtils]: Spent 472.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:08:27,451 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:08:28,160 WARN L191 SmtUtils]: Spent 706.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:08:28,633 WARN L191 SmtUtils]: Spent 471.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:08:29,112 WARN L191 SmtUtils]: Spent 477.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:08:29,224 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:08:29,944 WARN L191 SmtUtils]: Spent 718.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:08:30,416 WARN L191 SmtUtils]: Spent 469.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:08:30,898 WARN L191 SmtUtils]: Spent 479.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:08:31,008 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:08:31,714 WARN L191 SmtUtils]: Spent 704.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:08:31,992 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:08:31,993 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 14:08:31,999 INFO L168 Benchmark]: Toolchain (without parser) took 261974.86 ms. Allocated memory was 137.9 MB in the beginning and 2.8 GB in the end (delta: 2.7 GB). Free memory was 98.9 MB in the beginning and 469.8 MB in the end (delta: -370.9 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. [2019-10-07 14:08:31,999 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 137.9 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-07 14:08:32,000 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1122.06 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 98.6 MB in the beginning and 142.5 MB in the end (delta: -43.8 MB). Peak memory consumption was 33.1 MB. Max. memory is 7.1 GB. [2019-10-07 14:08:32,000 INFO L168 Benchmark]: Boogie Preprocessor took 200.27 ms. Allocated memory is still 201.3 MB. Free memory was 142.5 MB in the beginning and 133.3 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2019-10-07 14:08:32,000 INFO L168 Benchmark]: RCFGBuilder took 5022.99 ms. Allocated memory was 201.3 MB in the beginning and 303.6 MB in the end (delta: 102.2 MB). Free memory was 133.3 MB in the beginning and 244.8 MB in the end (delta: -111.5 MB). Peak memory consumption was 164.5 MB. Max. memory is 7.1 GB. [2019-10-07 14:08:32,001 INFO L168 Benchmark]: TraceAbstraction took 255623.20 ms. Allocated memory was 303.6 MB in the beginning and 2.8 GB in the end (delta: 2.5 GB). Free memory was 244.8 MB in the beginning and 469.8 MB in the end (delta: -225.0 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. [2019-10-07 14:08:32,002 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 137.9 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1122.06 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 98.6 MB in the beginning and 142.5 MB in the end (delta: -43.8 MB). Peak memory consumption was 33.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 200.27 ms. Allocated memory is still 201.3 MB. Free memory was 142.5 MB in the beginning and 133.3 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5022.99 ms. Allocated memory was 201.3 MB in the beginning and 303.6 MB in the end (delta: 102.2 MB). Free memory was 133.3 MB in the beginning and 244.8 MB in the end (delta: -111.5 MB). Peak memory consumption was 164.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 255623.20 ms. Allocated memory was 303.6 MB in the beginning and 2.8 GB in the end (delta: 2.5 GB). Free memory was 244.8 MB in the beginning and 469.8 MB in the end (delta: -225.0 MB). Peak memory consumption was 2.3 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...