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_spec14_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:03:52,374 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:03:52,376 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:03:52,391 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:03:52,392 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:03:52,393 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:03:52,394 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:03:52,396 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:03:52,398 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:03:52,399 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:03:52,400 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:03:52,401 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:03:52,402 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:03:52,403 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:03:52,404 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:03:52,405 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:03:52,406 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:03:52,407 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:03:52,408 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:03:52,410 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:03:52,412 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:03:52,413 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:03:52,414 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:03:52,415 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:03:52,417 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:03:52,418 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:03:52,418 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:03:52,419 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:03:52,420 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:03:52,420 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:03:52,421 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:03:52,421 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:03:52,422 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:03:52,423 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:03:52,424 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:03:52,425 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:03:52,425 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:03:52,425 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:03:52,426 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:03:52,427 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:03:52,427 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:03:52,430 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 14:03:52,454 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:03:52,455 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:03:52,456 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:03:52,456 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:03:52,457 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:03:52,457 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:03:52,457 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:03:52,457 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:03:52,458 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:03:52,458 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:03:52,458 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:03:52,458 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:03:52,458 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:03:52,459 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:03:52,459 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:03:52,459 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:03:52,459 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:03:52,459 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:03:52,460 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:03:52,460 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:03:52,460 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:03:52,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:03:52,461 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:03:52,461 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:03:52,461 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:03:52,461 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:03:52,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:03:52,462 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:03:52,462 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 14:03:52,748 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:03:52,766 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:03:52,771 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:03:52,773 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:03:52,773 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:03:52,774 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec14_product32.cil.c [2019-10-07 14:03:52,855 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4c89d703/f9b3480243904274a9cc5331c8e86af3/FLAG12f0b270c [2019-10-07 14:03:53,554 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:03:53,557 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec14_product32.cil.c [2019-10-07 14:03:53,588 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4c89d703/f9b3480243904274a9cc5331c8e86af3/FLAG12f0b270c [2019-10-07 14:03:53,705 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4c89d703/f9b3480243904274a9cc5331c8e86af3 [2019-10-07 14:03:53,716 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:03:53,718 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:03:53,719 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:03:53,719 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:03:53,722 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:03:53,724 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:03:53" (1/1) ... [2019-10-07 14:03:53,726 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64a2e2ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:03:53, skipping insertion in model container [2019-10-07 14:03:53,727 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:03:53" (1/1) ... [2019-10-07 14:03:53,733 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:03:53,803 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:03:54,589 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:03:54,605 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:03:54,720 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:03:54,785 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:03:54,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:03:54 WrapperNode [2019-10-07 14:03:54,786 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:03:54,787 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:03:54,787 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:03:54,787 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:03:54,803 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:03:54" (1/1) ... [2019-10-07 14:03:54,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:03:54" (1/1) ... [2019-10-07 14:03:54,838 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:03:54" (1/1) ... [2019-10-07 14:03:54,839 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:03:54" (1/1) ... [2019-10-07 14:03:54,897 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:03:54" (1/1) ... [2019-10-07 14:03:54,930 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:03:54" (1/1) ... [2019-10-07 14:03:54,943 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:03:54" (1/1) ... [2019-10-07 14:03:54,963 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:03:54,964 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:03:54,965 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:03:54,965 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:03:54,969 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:03:54" (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 14:03:55,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:03:55,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:03:55,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:03:55,066 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-07 14:03:55,066 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-07 14:03:55,067 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-07 14:03:55,068 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:03:55,068 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-07 14:03:55,069 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-07 14:03:55,069 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-07 14:03:55,069 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-07 14:03:55,070 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-07 14:03:55,070 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-07 14:03:55,070 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-07 14:03:55,071 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-07 14:03:55,071 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-07 14:03:55,074 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-07 14:03:55,074 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-07 14:03:55,074 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-07 14:03:55,075 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-07 14:03:55,075 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-07 14:03:55,075 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:03:55,076 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-07 14:03:55,076 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:03:55,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:03:55,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:03:55,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:03:55,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:03:55,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:03:55,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:03:55,078 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:03:55,078 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:03:55,078 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:03:55,079 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:03:55,079 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-07 14:03:55,079 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-07 14:03:55,079 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-07 14:03:55,080 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-07 14:03:55,080 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-07 14:03:55,080 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-07 14:03:55,080 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-07 14:03:55,080 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-07 14:03:55,081 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-07 14:03:55,081 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-07 14:03:55,081 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-07 14:03:55,081 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-07 14:03:55,081 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-07 14:03:55,082 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-10-07 14:03:55,082 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-07 14:03:55,082 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-07 14:03:55,082 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__weight [2019-10-07 14:03:55,082 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-07 14:03:55,082 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-07 14:03:55,083 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-07 14:03:55,083 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-07 14:03:55,083 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-07 14:03:55,083 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-07 14:03:55,083 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-07 14:03:55,084 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-07 14:03:55,085 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-07 14:03:55,085 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-07 14:03:55,085 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2019-10-07 14:03:55,085 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__twothirdsfull [2019-10-07 14:03:55,086 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-07 14:03:55,086 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-07 14:03:55,086 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-07 14:03:55,086 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-10-07 14:03:55,087 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2019-10-07 14:03:55,087 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-07 14:03:55,087 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-07 14:03:55,088 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-07 14:03:55,088 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2019-10-07 14:03:55,088 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-07 14:03:55,089 INFO L138 BoogieDeclarations]: Found implementation of procedure printState__wrappee__executivefloor [2019-10-07 14:03:55,089 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-07 14:03:55,090 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-07 14:03:55,090 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2019-10-07 14:03:55,091 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2019-10-07 14:03:55,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:03:55,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification14_spec__1 [2019-10-07 14:03:55,091 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:03:55,092 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:03:55,093 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-07 14:03:55,093 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-07 14:03:55,093 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-07 14:03:55,093 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-07 14:03:55,093 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-07 14:03:55,094 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-07 14:03:55,094 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-07 14:03:55,095 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:03:55,095 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-07 14:03:55,095 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-07 14:03:55,095 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-07 14:03:55,095 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-07 14:03:55,096 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-07 14:03:55,096 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-07 14:03:55,096 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-07 14:03:55,096 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-07 14:03:55,097 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-07 14:03:55,097 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-07 14:03:55,097 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-07 14:03:55,097 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-07 14:03:55,098 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-07 14:03:55,098 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-07 14:03:55,098 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-07 14:03:55,098 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-07 14:03:55,099 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-07 14:03:55,099 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:03:55,099 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-07 14:03:55,100 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:03:55,100 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:03:55,100 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:03:55,100 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:03:55,100 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:03:55,101 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:03:55,101 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:03:55,101 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:03:55,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:03:55,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:03:55,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:03:55,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:03:55,103 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:03:55,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:03:55,103 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:03:55,104 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:03:55,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:03:55,105 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:03:55,105 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:03:55,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:03:55,105 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:03:55,105 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:03:55,106 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-07 14:03:55,106 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-07 14:03:55,107 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-07 14:03:55,111 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-07 14:03:55,111 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-07 14:03:55,112 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-07 14:03:55,112 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-07 14:03:55,113 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-07 14:03:55,113 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-07 14:03:55,113 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-07 14:03:55,114 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:03:55,114 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-07 14:03:55,115 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-07 14:03:55,120 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-07 14:03:55,121 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-07 14:03:55,121 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-07 14:03:55,121 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-07 14:03:55,122 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2019-10-07 14:03:55,122 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2019-10-07 14:03:55,123 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-10-07 14:03:55,123 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-07 14:03:55,123 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__weight [2019-10-07 14:03:55,123 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-07 14:03:55,123 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-07 14:03:55,123 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-07 14:03:55,124 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-07 14:03:55,124 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-07 14:03:55,124 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2019-10-07 14:03:55,124 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__twothirdsfull [2019-10-07 14:03:55,124 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-07 14:03:55,124 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-07 14:03:55,124 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-10-07 14:03:55,124 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2019-10-07 14:03:55,125 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-07 14:03:55,125 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-07 14:03:55,125 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-07 14:03:55,125 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2019-10-07 14:03:55,125 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification14_spec__1 [2019-10-07 14:03:55,125 INFO L130 BoogieDeclarations]: Found specification of procedure printState__wrappee__executivefloor [2019-10-07 14:03:55,125 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-07 14:03:55,126 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:03:55,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:03:55,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:03:55,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:04:00,596 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:04:00,596 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-07 14:04:00,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:04:00 BoogieIcfgContainer [2019-10-07 14:04:00,598 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:04:00,599 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:04:00,600 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:04:00,603 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:04:00,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:03:53" (1/3) ... [2019-10-07 14:04:00,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d4241be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:04:00, skipping insertion in model container [2019-10-07 14:04:00,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:03:54" (2/3) ... [2019-10-07 14:04:00,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d4241be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:04:00, skipping insertion in model container [2019-10-07 14:04:00,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:04:00" (3/3) ... [2019-10-07 14:04:00,606 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product32.cil.c [2019-10-07 14:04:00,616 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:04:00,626 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:04:00,640 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:04:00,685 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:04:00,685 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:04:00,685 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:04:00,685 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:04:00,686 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:04:00,686 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:04:00,686 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:04:00,686 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:04:00,725 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states. [2019-10-07 14:04:00,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-10-07 14:04:00,737 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:04:00,738 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 14:04:00,740 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:04:00,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:04:00,747 INFO L82 PathProgramCache]: Analyzing trace with hash -252975014, now seen corresponding path program 1 times [2019-10-07 14:04:00,756 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:04:00,756 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:04:00,757 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:04:00,757 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:04:00,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:04:01,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:04:01,481 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 14:04:01,481 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:04:01,482 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:04:01,482 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:04:01,487 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:04:01,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:04:01,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:04:01,505 INFO L87 Difference]: Start difference. First operand 587 states. Second operand 3 states. [2019-10-07 14:04:01,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:04:01,872 INFO L93 Difference]: Finished difference Result 1338 states and 1999 transitions. [2019-10-07 14:04:01,872 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:04:01,874 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 72 [2019-10-07 14:04:01,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:04:01,908 INFO L225 Difference]: With dead ends: 1338 [2019-10-07 14:04:01,908 INFO L226 Difference]: Without dead ends: 879 [2019-10-07 14:04:01,920 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:04:01,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2019-10-07 14:04:02,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 834. [2019-10-07 14:04:02,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 834 states. [2019-10-07 14:04:02,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1241 transitions. [2019-10-07 14:04:02,085 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1241 transitions. Word has length 72 [2019-10-07 14:04:02,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:04:02,086 INFO L462 AbstractCegarLoop]: Abstraction has 834 states and 1241 transitions. [2019-10-07 14:04:02,086 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:04:02,086 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1241 transitions. [2019-10-07 14:04:02,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2019-10-07 14:04:02,108 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:04:02,109 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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 14:04:02,111 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:04:02,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:04:02,111 INFO L82 PathProgramCache]: Analyzing trace with hash -28644872, now seen corresponding path program 1 times [2019-10-07 14:04:02,111 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:04:02,112 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:04:02,112 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:04:02,112 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:04:02,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:04:02,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:04:02,604 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-07 14:04:02,604 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:04:02,605 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:04:02,605 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 14:04:02,607 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:04:02,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:04:02,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:04:02,608 INFO L87 Difference]: Start difference. First operand 834 states and 1241 transitions. Second operand 7 states. [2019-10-07 14:04:06,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:04:06,855 INFO L93 Difference]: Finished difference Result 2514 states and 3803 transitions. [2019-10-07 14:04:06,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-07 14:04:06,856 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 120 [2019-10-07 14:04:06,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:04:06,872 INFO L225 Difference]: With dead ends: 2514 [2019-10-07 14:04:06,872 INFO L226 Difference]: Without dead ends: 1711 [2019-10-07 14:04:06,878 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-10-07 14:04:06,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1711 states. [2019-10-07 14:04:07,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1711 to 1649. [2019-10-07 14:04:07,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1649 states. [2019-10-07 14:04:07,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1649 states to 1649 states and 2485 transitions. [2019-10-07 14:04:07,018 INFO L78 Accepts]: Start accepts. Automaton has 1649 states and 2485 transitions. Word has length 120 [2019-10-07 14:04:07,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:04:07,020 INFO L462 AbstractCegarLoop]: Abstraction has 1649 states and 2485 transitions. [2019-10-07 14:04:07,020 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:04:07,020 INFO L276 IsEmpty]: Start isEmpty. Operand 1649 states and 2485 transitions. [2019-10-07 14:04:07,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2019-10-07 14:04:07,026 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:04:07,026 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-07 14:04:07,027 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:04:07,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:04:07,027 INFO L82 PathProgramCache]: Analyzing trace with hash 493145079, now seen corresponding path program 1 times [2019-10-07 14:04:07,027 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:04:07,028 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:04:07,028 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:04:07,028 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:04:07,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:04:07,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:04:07,265 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-10-07 14:04:07,265 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:04:07,266 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:04:07,266 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 14:04:07,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:04:07,959 INFO L256 TraceCheckSpWp]: Trace formula consists of 2844 conjuncts, 16 conjunts are in the unsatisfiable core [2019-10-07 14:04:07,978 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:04:08,134 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-07 14:04:08,135 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:04:08,455 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-10-07 14:04:08,456 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:04:08,456 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10, 6] total 15 [2019-10-07 14:04:08,458 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 14:04:08,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 14:04:08,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2019-10-07 14:04:08,460 INFO L87 Difference]: Start difference. First operand 1649 states and 2485 transitions. Second operand 6 states. [2019-10-07 14:04:09,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:04:09,336 INFO L93 Difference]: Finished difference Result 3567 states and 5358 transitions. [2019-10-07 14:04:09,336 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 14:04:09,337 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 123 [2019-10-07 14:04:09,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:04:09,354 INFO L225 Difference]: With dead ends: 3567 [2019-10-07 14:04:09,354 INFO L226 Difference]: Without dead ends: 1948 [2019-10-07 14:04:09,363 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 238 SyntacticMatches, 9 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2019-10-07 14:04:09,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1948 states. [2019-10-07 14:04:09,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1948 to 1932. [2019-10-07 14:04:09,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1932 states. [2019-10-07 14:04:09,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1932 states to 1932 states and 2836 transitions. [2019-10-07 14:04:09,483 INFO L78 Accepts]: Start accepts. Automaton has 1932 states and 2836 transitions. Word has length 123 [2019-10-07 14:04:09,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:04:09,484 INFO L462 AbstractCegarLoop]: Abstraction has 1932 states and 2836 transitions. [2019-10-07 14:04:09,484 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 14:04:09,484 INFO L276 IsEmpty]: Start isEmpty. Operand 1932 states and 2836 transitions. [2019-10-07 14:04:09,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2019-10-07 14:04:09,488 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:04:09,488 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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 14:04:09,697 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:04:09,697 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:04:09,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:04:09,698 INFO L82 PathProgramCache]: Analyzing trace with hash -1126530492, now seen corresponding path program 1 times [2019-10-07 14:04:09,698 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:04:09,698 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:04:09,698 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:04:09,699 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:04:09,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:04:09,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:04:09,959 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-10-07 14:04:09,959 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:04:09,959 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:04:09,960 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-07 14:04:09,960 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 14:04:09,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 14:04:09,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2019-10-07 14:04:09,961 INFO L87 Difference]: Start difference. First operand 1932 states and 2836 transitions. Second operand 9 states. [2019-10-07 14:04:13,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:04:13,903 INFO L93 Difference]: Finished difference Result 2111 states and 3118 transitions. [2019-10-07 14:04:13,904 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-07 14:04:13,904 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 124 [2019-10-07 14:04:13,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:04:13,923 INFO L225 Difference]: With dead ends: 2111 [2019-10-07 14:04:13,923 INFO L226 Difference]: Without dead ends: 2108 [2019-10-07 14:04:13,925 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2019-10-07 14:04:13,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2108 states. [2019-10-07 14:04:14,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2108 to 2028. [2019-10-07 14:04:14,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2028 states. [2019-10-07 14:04:14,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2028 states to 2028 states and 2995 transitions. [2019-10-07 14:04:14,089 INFO L78 Accepts]: Start accepts. Automaton has 2028 states and 2995 transitions. Word has length 124 [2019-10-07 14:04:14,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:04:14,091 INFO L462 AbstractCegarLoop]: Abstraction has 2028 states and 2995 transitions. [2019-10-07 14:04:14,091 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 14:04:14,091 INFO L276 IsEmpty]: Start isEmpty. Operand 2028 states and 2995 transitions. [2019-10-07 14:04:14,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-10-07 14:04:14,098 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:04:14,099 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 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] [2019-10-07 14:04:14,099 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:04:14,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:04:14,099 INFO L82 PathProgramCache]: Analyzing trace with hash 913097270, now seen corresponding path program 1 times [2019-10-07 14:04:14,100 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:04:14,100 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:04:14,100 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:04:14,100 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:04:14,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:04:14,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:04:14,287 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2019-10-07 14:04:14,288 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:04:14,288 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:04:14,288 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 14:04:14,289 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 14:04:14,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 14:04:14,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:04:14,291 INFO L87 Difference]: Start difference. First operand 2028 states and 2995 transitions. Second operand 5 states. [2019-10-07 14:04:14,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:04:14,422 INFO L93 Difference]: Finished difference Result 4049 states and 6027 transitions. [2019-10-07 14:04:14,423 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:04:14,423 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 160 [2019-10-07 14:04:14,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:04:14,445 INFO L225 Difference]: With dead ends: 4049 [2019-10-07 14:04:14,446 INFO L226 Difference]: Without dead ends: 2052 [2019-10-07 14:04:14,463 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 14:04:14,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2052 states. [2019-10-07 14:04:14,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2052 to 2052. [2019-10-07 14:04:14,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2052 states. [2019-10-07 14:04:14,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2052 states to 2052 states and 3019 transitions. [2019-10-07 14:04:14,596 INFO L78 Accepts]: Start accepts. Automaton has 2052 states and 3019 transitions. Word has length 160 [2019-10-07 14:04:14,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:04:14,599 INFO L462 AbstractCegarLoop]: Abstraction has 2052 states and 3019 transitions. [2019-10-07 14:04:14,599 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 14:04:14,599 INFO L276 IsEmpty]: Start isEmpty. Operand 2052 states and 3019 transitions. [2019-10-07 14:04:14,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2019-10-07 14:04:14,607 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:04:14,607 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 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] [2019-10-07 14:04:14,607 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:04:14,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:04:14,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1862977440, now seen corresponding path program 1 times [2019-10-07 14:04:14,611 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:04:14,611 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:04:14,611 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:04:14,612 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:04:14,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:04:14,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:04:14,842 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-10-07 14:04:14,842 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:04:14,842 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:04:14,842 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 14:04:15,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:04:15,483 INFO L256 TraceCheckSpWp]: Trace formula consists of 3190 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:04:15,506 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:04:15,555 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-07 14:04:15,555 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:04:15,890 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-10-07 14:04:15,890 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:04:15,890 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 4] total 10 [2019-10-07 14:04:15,891 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:04:15,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:04:15,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:04:15,892 INFO L87 Difference]: Start difference. First operand 2052 states and 3019 transitions. Second operand 4 states. [2019-10-07 14:04:16,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:04:16,180 INFO L93 Difference]: Finished difference Result 4229 states and 6366 transitions. [2019-10-07 14:04:16,181 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:04:16,182 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 169 [2019-10-07 14:04:16,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:04:16,204 INFO L225 Difference]: With dead ends: 4229 [2019-10-07 14:04:16,205 INFO L226 Difference]: Without dead ends: 2208 [2019-10-07 14:04:16,219 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 337 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2019-10-07 14:04:16,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2208 states. [2019-10-07 14:04:16,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2208 to 2208. [2019-10-07 14:04:16,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2208 states. [2019-10-07 14:04:16,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2208 states to 2208 states and 3311 transitions. [2019-10-07 14:04:16,365 INFO L78 Accepts]: Start accepts. Automaton has 2208 states and 3311 transitions. Word has length 169 [2019-10-07 14:04:16,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:04:16,366 INFO L462 AbstractCegarLoop]: Abstraction has 2208 states and 3311 transitions. [2019-10-07 14:04:16,366 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:04:16,366 INFO L276 IsEmpty]: Start isEmpty. Operand 2208 states and 3311 transitions. [2019-10-07 14:04:16,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-10-07 14:04:16,378 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:04:16,379 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 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 14:04:16,590 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:04:16,591 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:04:16,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:04:16,591 INFO L82 PathProgramCache]: Analyzing trace with hash 1563345573, now seen corresponding path program 1 times [2019-10-07 14:04:16,592 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:04:16,592 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:04:16,592 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:04:16,592 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:04:16,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:04:16,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:04:16,774 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2019-10-07 14:04:16,774 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:04:16,775 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:04:16,775 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 14:04:17,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:04:17,426 INFO L256 TraceCheckSpWp]: Trace formula consists of 3195 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:04:17,434 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:04:17,468 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-10-07 14:04:17,469 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:04:17,779 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2019-10-07 14:04:17,779 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:04:17,780 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 7 [2019-10-07 14:04:17,780 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:04:17,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:04:17,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:04:17,781 INFO L87 Difference]: Start difference. First operand 2208 states and 3311 transitions. Second operand 4 states. [2019-10-07 14:04:18,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:04:18,044 INFO L93 Difference]: Finished difference Result 4541 states and 6946 transitions. [2019-10-07 14:04:18,045 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:04:18,045 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 174 [2019-10-07 14:04:18,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:04:18,061 INFO L225 Difference]: With dead ends: 4541 [2019-10-07 14:04:18,061 INFO L226 Difference]: Without dead ends: 2364 [2019-10-07 14:04:18,072 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 345 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:04:18,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2364 states. [2019-10-07 14:04:18,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2364 to 2364. [2019-10-07 14:04:18,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2364 states. [2019-10-07 14:04:18,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2364 states to 2364 states and 3603 transitions. [2019-10-07 14:04:18,185 INFO L78 Accepts]: Start accepts. Automaton has 2364 states and 3603 transitions. Word has length 174 [2019-10-07 14:04:18,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:04:18,187 INFO L462 AbstractCegarLoop]: Abstraction has 2364 states and 3603 transitions. [2019-10-07 14:04:18,187 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:04:18,187 INFO L276 IsEmpty]: Start isEmpty. Operand 2364 states and 3603 transitions. [2019-10-07 14:04:18,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2019-10-07 14:04:18,195 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:04:18,196 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:04:18,404 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:04:18,405 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:04:18,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:04:18,405 INFO L82 PathProgramCache]: Analyzing trace with hash 456525333, now seen corresponding path program 1 times [2019-10-07 14:04:18,406 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:04:18,406 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:04:18,406 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:04:18,406 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:04:18,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:04:18,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:04:18,583 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2019-10-07 14:04:18,583 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:04:18,584 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:04:18,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:04:19,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:04:19,303 INFO L256 TraceCheckSpWp]: Trace formula consists of 3199 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:04:19,310 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:04:19,342 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-07 14:04:19,342 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:04:19,690 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2019-10-07 14:04:19,691 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:04:19,691 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 7 [2019-10-07 14:04:19,693 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:04:19,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:04:19,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:04:19,694 INFO L87 Difference]: Start difference. First operand 2364 states and 3603 transitions. Second operand 4 states. [2019-10-07 14:04:19,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:04:19,940 INFO L93 Difference]: Finished difference Result 4853 states and 7526 transitions. [2019-10-07 14:04:19,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:04:19,941 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 178 [2019-10-07 14:04:19,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:04:19,960 INFO L225 Difference]: With dead ends: 4853 [2019-10-07 14:04:19,960 INFO L226 Difference]: Without dead ends: 2520 [2019-10-07 14:04:19,972 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 353 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:04:19,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2520 states. [2019-10-07 14:04:20,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2520 to 2520. [2019-10-07 14:04:20,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2520 states. [2019-10-07 14:04:20,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2520 states to 2520 states and 3895 transitions. [2019-10-07 14:04:20,090 INFO L78 Accepts]: Start accepts. Automaton has 2520 states and 3895 transitions. Word has length 178 [2019-10-07 14:04:20,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:04:20,090 INFO L462 AbstractCegarLoop]: Abstraction has 2520 states and 3895 transitions. [2019-10-07 14:04:20,090 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:04:20,091 INFO L276 IsEmpty]: Start isEmpty. Operand 2520 states and 3895 transitions. [2019-10-07 14:04:20,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-10-07 14:04:20,099 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:04:20,099 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:04:20,308 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:04:20,308 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:04:20,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:04:20,309 INFO L82 PathProgramCache]: Analyzing trace with hash 726319424, now seen corresponding path program 1 times [2019-10-07 14:04:20,309 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:04:20,309 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:04:20,310 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:04:20,310 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:04:20,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:04:20,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:04:20,512 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2019-10-07 14:04:20,513 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:04:20,513 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:04:20,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:04:21,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:04:21,111 INFO L256 TraceCheckSpWp]: Trace formula consists of 3202 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:04:21,119 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:04:21,159 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-07 14:04:21,160 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:04:21,402 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2019-10-07 14:04:21,402 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:04:21,402 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 7 [2019-10-07 14:04:21,403 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:04:21,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:04:21,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:04:21,404 INFO L87 Difference]: Start difference. First operand 2520 states and 3895 transitions. Second operand 4 states. [2019-10-07 14:04:21,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:04:21,782 INFO L93 Difference]: Finished difference Result 5165 states and 8106 transitions. [2019-10-07 14:04:21,783 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:04:21,783 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 181 [2019-10-07 14:04:21,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:04:21,809 INFO L225 Difference]: With dead ends: 5165 [2019-10-07 14:04:21,809 INFO L226 Difference]: Without dead ends: 2676 [2019-10-07 14:04:21,824 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 359 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:04:21,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2676 states. [2019-10-07 14:04:21,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2676 to 2676. [2019-10-07 14:04:21,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2676 states. [2019-10-07 14:04:21,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2676 states to 2676 states and 4187 transitions. [2019-10-07 14:04:21,964 INFO L78 Accepts]: Start accepts. Automaton has 2676 states and 4187 transitions. Word has length 181 [2019-10-07 14:04:21,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:04:21,967 INFO L462 AbstractCegarLoop]: Abstraction has 2676 states and 4187 transitions. [2019-10-07 14:04:21,968 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:04:21,968 INFO L276 IsEmpty]: Start isEmpty. Operand 2676 states and 4187 transitions. [2019-10-07 14:04:21,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2019-10-07 14:04:21,980 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:04:21,981 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:04:22,193 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:04:22,194 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:04:22,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:04:22,194 INFO L82 PathProgramCache]: Analyzing trace with hash 563451854, now seen corresponding path program 1 times [2019-10-07 14:04:22,195 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:04:22,195 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:04:22,195 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:04:22,195 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:04:22,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:04:22,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:04:22,466 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-10-07 14:04:22,466 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:04:22,466 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:04:22,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:04:23,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:04:23,174 INFO L256 TraceCheckSpWp]: Trace formula consists of 3198 conjuncts, 35 conjunts are in the unsatisfiable core [2019-10-07 14:04:23,182 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:04:23,247 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 22 proven. 8 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2019-10-07 14:04:23,247 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:04:23,545 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:04:23,549 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:04:23,556 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:04:23,561 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:04:23,662 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-10-07 14:04:23,663 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:04:23,725 INFO L162 IcfgInterpreter]: Started Sifa with 143 locations of interest [2019-10-07 14:04:23,725 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:04:23,731 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:04:23,738 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:04:23,738 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:05:20,228 WARN L191 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 767 [2019-10-07 14:05:25,170 WARN L191 SmtUtils]: Spent 2.34 s on a formula simplification. DAG size of input: 430 DAG size of output: 347 [2019-10-07 14:05:25,565 WARN L191 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 860 [2019-10-07 14:05:26,155 WARN L191 SmtUtils]: Spent 583.00 ms on a formula simplification that was a NOOP. DAG size: 860 [2019-10-07 14:05:26,557 WARN L191 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 860 [2019-10-07 14:05:27,225 WARN L191 SmtUtils]: Spent 513.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 14:05:27,750 WARN L191 SmtUtils]: Spent 511.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 14:05:28,267 WARN L191 SmtUtils]: Spent 514.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 14:05:28,780 WARN L191 SmtUtils]: Spent 450.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 14:05:29,823 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 1046 DAG size of output: 1044 [2019-10-07 14:05:30,333 WARN L191 SmtUtils]: Spent 506.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 14:05:30,836 WARN L191 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 14:05:31,285 WARN L191 SmtUtils]: Spent 446.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 14:05:31,796 WARN L191 SmtUtils]: Spent 508.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 14:05:32,289 WARN L191 SmtUtils]: Spent 447.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 14:05:32,312 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 385 for LOIs [2019-10-07 14:05:32,631 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 735 [2019-10-07 14:05:32,788 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 735 [2019-10-07 14:05:33,184 WARN L191 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 919 [2019-10-07 14:05:33,186 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1086 for LOIs [2019-10-07 14:05:33,618 WARN L191 SmtUtils]: Spent 431.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:05:34,053 WARN L191 SmtUtils]: Spent 430.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:05:34,166 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:05:34,956 WARN L191 SmtUtils]: Spent 788.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:05:35,407 WARN L191 SmtUtils]: Spent 438.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:05:35,849 WARN L191 SmtUtils]: Spent 438.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:05:35,970 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:05:36,738 WARN L191 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:05:37,221 WARN L191 SmtUtils]: Spent 453.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:05:37,661 WARN L191 SmtUtils]: Spent 436.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:05:37,920 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:05:38,712 WARN L191 SmtUtils]: Spent 789.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:05:39,495 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification. DAG size of input: 1250 DAG size of output: 1086 [2019-10-07 14:05:39,987 WARN L191 SmtUtils]: Spent 489.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:05:40,120 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:05:40,868 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:05:41,317 WARN L191 SmtUtils]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:05:41,842 WARN L191 SmtUtils]: Spent 522.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:05:41,955 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:05:42,682 WARN L191 SmtUtils]: Spent 725.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:05:43,117 WARN L191 SmtUtils]: Spent 432.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:05:43,561 WARN L191 SmtUtils]: Spent 441.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:05:43,669 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:05:44,433 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:05:44,869 WARN L191 SmtUtils]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:05:45,302 WARN L191 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:05:45,413 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:05:46,734 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:05:47,171 WARN L191 SmtUtils]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:05:47,610 WARN L191 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:05:47,721 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:05:48,448 WARN L191 SmtUtils]: Spent 726.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:05:48,888 WARN L191 SmtUtils]: Spent 436.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:05:49,324 WARN L191 SmtUtils]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:05:49,468 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:05:50,197 WARN L191 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:05:50,642 WARN L191 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:05:51,115 WARN L191 SmtUtils]: Spent 470.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:05:51,226 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:05:51,954 WARN L191 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:05:52,390 WARN L191 SmtUtils]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:05:52,827 WARN L191 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:05:52,936 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:05:53,664 WARN L191 SmtUtils]: Spent 726.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:05:54,105 WARN L191 SmtUtils]: Spent 439.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:05:54,550 WARN L191 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:05:54,659 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:05:55,391 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:05:55,857 WARN L191 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:05:56,306 WARN L191 SmtUtils]: Spent 446.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:05:56,415 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:05:57,142 WARN L191 SmtUtils]: Spent 725.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:05:58,091 WARN L191 SmtUtils]: Spent 903.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:05:58,837 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:05:58,977 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:05:59,721 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:01,060 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:06:01,835 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:01,952 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:06:02,686 WARN L191 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:03,413 WARN L191 SmtUtils]: Spent 724.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:04,148 WARN L191 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:04,258 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:06:04,995 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:06,129 WARN L191 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:06:06,867 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:06:06,981 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:06:07,743 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:06:08,546 WARN L191 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:06:09,286 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:06:09,409 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:06:10,149 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:06:10,875 WARN L191 SmtUtils]: Spent 722.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:06:11,633 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:06:11,748 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:06:12,487 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:06:13,239 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:06:13,970 WARN L191 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:06:14,094 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:06:14,823 WARN L191 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:06:15,559 WARN L191 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:06:16,301 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:06:16,419 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:06:17,152 WARN L191 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:06:17,913 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:06:18,655 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:06:18,771 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:06:19,521 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:06:20,768 WARN L191 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 1256 DAG size of output: 1252 [2019-10-07 14:06:21,513 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:06:21,635 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:06:22,379 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:06:23,118 WARN L191 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:06:23,857 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:06:23,967 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:06:24,701 WARN L191 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:06:26,243 WARN L191 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:06:26,994 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:27,119 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:06:27,854 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:29,180 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:06:29,906 WARN L191 SmtUtils]: Spent 723.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:30,022 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:06:30,768 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:31,504 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:32,240 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:32,348 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:06:33,089 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:33,853 WARN L191 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:06:34,588 WARN L191 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:06:34,707 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:06:35,448 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:06:36,204 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:06:36,967 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:06:37,092 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:06:37,829 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:06:38,582 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:06:39,318 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:06:39,429 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:06:40,167 WARN L191 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:06:41,473 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1250 [2019-10-07 14:06:42,201 WARN L191 SmtUtils]: Spent 724.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:06:42,356 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:06:43,097 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:06:44,341 WARN L191 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 1256 DAG size of output: 1252 [2019-10-07 14:06:45,072 WARN L191 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:06:45,197 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:06:45,946 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:06:47,320 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:06:48,056 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:48,171 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:06:48,894 WARN L191 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:50,209 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:06:50,932 WARN L191 SmtUtils]: Spent 720.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:51,046 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:06:51,778 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:52,511 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:53,251 WARN L191 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:53,362 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:06:54,086 WARN L191 SmtUtils]: Spent 722.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:55,425 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:06:56,176 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:56,290 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:06:57,037 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:58,358 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:06:59,085 WARN L191 SmtUtils]: Spent 723.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:59,200 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:06:59,931 WARN L191 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:00,652 WARN L191 SmtUtils]: Spent 717.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:01,387 WARN L191 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:01,497 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:07:02,224 WARN L191 SmtUtils]: Spent 725.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:03,009 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:07:03,754 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:07:03,874 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:07:04,611 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:07:05,354 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:07:06,089 WARN L191 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:07:06,206 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:07:06,952 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:07:07,692 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:07:08,436 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:07:08,546 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:07:09,276 WARN L191 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:07:10,584 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1250 [2019-10-07 14:07:11,324 WARN L191 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:07:11,443 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:07:12,188 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:07:13,516 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:07:14,262 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:14,379 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:07:15,110 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:16,467 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:07:17,199 WARN L191 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:17,312 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:07:18,058 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:18,797 WARN L191 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:19,536 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:19,646 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:07:20,376 WARN L191 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:21,189 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:07:21,929 WARN L191 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:07:22,044 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:07:22,813 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:07:23,564 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:07:24,314 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:07:24,445 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:07:25,179 WARN L191 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:07:26,523 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:07:27,266 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:27,397 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:07:28,150 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:29,469 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:07:30,218 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:30,337 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:07:31,083 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:32,532 WARN L191 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:07:33,266 WARN L191 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:33,383 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:07:34,110 WARN L191 SmtUtils]: Spent 725.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:35,484 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:07:36,210 WARN L191 SmtUtils]: Spent 723.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:36,326 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:07:37,046 WARN L191 SmtUtils]: Spent 718.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:37,781 WARN L191 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:38,524 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:38,632 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:07:39,362 WARN L191 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:40,139 WARN L191 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:07:40,884 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:07:40,999 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:07:41,740 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:07:42,973 WARN L191 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1250 [2019-10-07 14:07:43,710 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:07:43,825 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:07:44,569 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:07:45,801 WARN L191 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1250 [2019-10-07 14:07:46,532 WARN L191 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:07:46,642 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:07:47,368 WARN L191 SmtUtils]: Spent 723.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:07:48,687 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1250 [2019-10-07 14:07:49,440 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:07:49,556 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:07:50,286 WARN L191 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:07:51,524 WARN L191 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 1256 DAG size of output: 1252 [2019-10-07 14:07:52,257 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:07:52,371 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:07:53,096 WARN L191 SmtUtils]: Spent 723.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:07:54,442 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:07:55,176 WARN L191 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:55,291 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:07:56,026 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:57,315 WARN L191 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:07:58,048 WARN L191 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:58,166 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:07:58,902 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:07:59,629 WARN L191 SmtUtils]: Spent 725.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:08:00,358 WARN L191 SmtUtils]: Spent 725.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:08:00,466 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:08:01,196 WARN L191 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:08:02,453 WARN L191 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1250 [2019-10-07 14:08:03,179 WARN L191 SmtUtils]: Spent 723.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:08:03,293 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:08:04,032 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:08:05,277 WARN L191 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1250 [2019-10-07 14:08:06,008 WARN L191 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:08:06,124 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:08:06,862 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:08:07,595 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:08:08,339 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:08:08,449 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:08:09,186 WARN L191 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:08:10,426 WARN L191 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 1259 DAG size of output: 1252 [2019-10-07 14:08:11,171 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:08:11,292 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:08:12,025 WARN L191 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:08:13,349 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1261 DAG size of output: 1254 [2019-10-07 14:08:14,099 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:08:14,215 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:08:14,960 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:08:16,299 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1261 DAG size of output: 1254 [2019-10-07 14:08:17,040 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:08:17,155 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:08:17,895 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:08:19,222 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1261 DAG size of output: 1254 [2019-10-07 14:08:19,964 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:08:20,103 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:08:20,852 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:08:20,860 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 1112 for LOIs [2019-10-07 14:08:21,346 WARN L191 SmtUtils]: Spent 485.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:08:21,838 WARN L191 SmtUtils]: Spent 488.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:08:21,976 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:08:22,705 WARN L191 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:08:22,716 INFO L199 IcfgInterpreter]: Interpreting procedure test with input of size 1064 for LOIs [2019-10-07 14:08:23,127 WARN L191 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 14:08:23,537 WARN L191 SmtUtils]: Spent 407.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 14:08:23,677 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:08:24,409 WARN L191 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:08:24,657 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:08:24,658 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 14:08:24,664 INFO L168 Benchmark]: Toolchain (without parser) took 270946.77 ms. Allocated memory was 137.4 MB in the beginning and 2.8 GB in the end (delta: 2.7 GB). Free memory was 98.4 MB in the beginning and 2.5 GB in the end (delta: -2.4 GB). Peak memory consumption was 267.1 MB. Max. memory is 7.1 GB. [2019-10-07 14:08:24,664 INFO L168 Benchmark]: CDTParser took 1.49 ms. Allocated memory is still 137.4 MB. Free memory was 119.4 MB in the beginning and 119.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-07 14:08:24,664 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1067.74 ms. Allocated memory was 137.4 MB in the beginning and 202.4 MB in the end (delta: 65.0 MB). Free memory was 98.2 MB in the beginning and 141.2 MB in the end (delta: -43.1 MB). Peak memory consumption was 34.2 MB. Max. memory is 7.1 GB. [2019-10-07 14:08:24,665 INFO L168 Benchmark]: Boogie Preprocessor took 177.10 ms. Allocated memory is still 202.4 MB. Free memory was 141.2 MB in the beginning and 131.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-10-07 14:08:24,665 INFO L168 Benchmark]: RCFGBuilder took 5633.97 ms. Allocated memory was 202.4 MB in the beginning and 303.6 MB in the end (delta: 101.2 MB). Free memory was 131.9 MB in the beginning and 222.0 MB in the end (delta: -90.1 MB). Peak memory consumption was 164.0 MB. Max. memory is 7.1 GB. [2019-10-07 14:08:24,665 INFO L168 Benchmark]: TraceAbstraction took 264063.17 ms. Allocated memory was 303.6 MB in the beginning and 2.8 GB in the end (delta: 2.5 GB). Free memory was 222.0 MB in the beginning and 2.5 GB in the end (delta: -2.3 GB). Peak memory consumption was 224.5 MB. Max. memory is 7.1 GB. [2019-10-07 14:08:24,667 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.49 ms. Allocated memory is still 137.4 MB. Free memory was 119.4 MB in the beginning and 119.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1067.74 ms. Allocated memory was 137.4 MB in the beginning and 202.4 MB in the end (delta: 65.0 MB). Free memory was 98.2 MB in the beginning and 141.2 MB in the end (delta: -43.1 MB). Peak memory consumption was 34.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 177.10 ms. Allocated memory is still 202.4 MB. Free memory was 141.2 MB in the beginning and 131.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5633.97 ms. Allocated memory was 202.4 MB in the beginning and 303.6 MB in the end (delta: 101.2 MB). Free memory was 131.9 MB in the beginning and 222.0 MB in the end (delta: -90.1 MB). Peak memory consumption was 164.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 264063.17 ms. Allocated memory was 303.6 MB in the beginning and 2.8 GB in the end (delta: 2.5 GB). Free memory was 222.0 MB in the beginning and 2.5 GB in the end (delta: -2.3 GB). Peak memory consumption was 224.5 MB. 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...