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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec3_product22.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:45:40,649 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:45:40,651 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:45:40,663 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:45:40,664 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:45:40,665 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:45:40,666 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:45:40,668 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:45:40,670 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:45:40,670 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:45:40,671 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:45:40,672 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:45:40,673 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:45:40,674 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:45:40,675 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:45:40,676 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:45:40,676 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:45:40,677 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:45:40,679 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:45:40,681 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:45:40,683 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:45:40,684 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:45:40,685 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:45:40,686 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:45:40,688 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:45:40,689 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:45:40,689 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:45:40,690 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:45:40,690 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:45:40,691 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:45:40,691 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:45:40,692 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:45:40,693 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:45:40,694 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:45:40,695 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:45:40,695 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:45:40,696 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:45:40,696 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:45:40,696 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:45:40,697 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:45:40,698 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:45:40,699 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-10-03 02:45:40,714 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:45:40,714 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:45:40,714 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:45:40,715 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:45:40,715 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:45:40,715 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:45:40,716 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:45:40,716 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:45:40,716 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:45:40,716 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:45:40,717 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:45:40,717 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:45:40,717 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:45:40,717 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:45:40,718 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:45:40,718 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:45:40,718 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:45:40,718 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:45:40,718 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:45:40,719 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:45:40,719 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:45:40,719 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:45:40,719 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:45:40,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:45:40,720 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:45:40,720 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:45:40,720 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:45:40,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:45:40,721 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:45:40,721 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:45:40,752 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:45:40,767 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:45:40,774 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:45:40,776 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:45:40,776 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:45:40,777 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_product22.cil.c [2019-10-03 02:45:40,841 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3def36b20/05f3d1a57b614c31a609d7c4d51be327/FLAG4068dbbd2 [2019-10-03 02:45:41,509 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:45:41,511 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product22.cil.c [2019-10-03 02:45:41,537 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3def36b20/05f3d1a57b614c31a609d7c4d51be327/FLAG4068dbbd2 [2019-10-03 02:45:41,708 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3def36b20/05f3d1a57b614c31a609d7c4d51be327 [2019-10-03 02:45:41,716 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:45:41,718 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:45:41,719 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:45:41,719 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:45:41,723 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:45:41,724 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:45:41" (1/1) ... [2019-10-03 02:45:41,727 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5466f872 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:41, skipping insertion in model container [2019-10-03 02:45:41,727 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:45:41" (1/1) ... [2019-10-03 02:45:41,735 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:45:41,812 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:45:42,528 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:45:42,554 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:45:42,727 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:45:42,792 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:45:42,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:42 WrapperNode [2019-10-03 02:45:42,793 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:45:42,794 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:45:42,794 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:45:42,794 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:45:42,808 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:42" (1/1) ... [2019-10-03 02:45:42,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:42" (1/1) ... [2019-10-03 02:45:42,842 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:42" (1/1) ... [2019-10-03 02:45:42,842 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:42" (1/1) ... [2019-10-03 02:45:42,929 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:42" (1/1) ... [2019-10-03 02:45:42,975 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:42" (1/1) ... [2019-10-03 02:45:42,996 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:42" (1/1) ... [2019-10-03 02:45:43,023 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:45:43,027 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:45:43,027 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:45:43,027 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:45:43,028 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:42" (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 [2019-10-03 02:45:43,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:45:43,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:45:43,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-03 02:45:43,115 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-03 02:45:43,115 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-03 02:45:43,115 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-03 02:45:43,115 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-03 02:45:43,115 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-03 02:45:43,116 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-03 02:45:43,116 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-03 02:45:43,116 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-03 02:45:43,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-03 02:45:43,117 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-03 02:45:43,118 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-03 02:45:43,118 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-03 02:45:43,119 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-03 02:45:43,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2019-10-03 02:45:43,120 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__2 [2019-10-03 02:45:43,120 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-03 02:45:43,120 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-03 02:45:43,121 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-03 02:45:43,121 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-03 02:45:43,121 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-03 02:45:43,121 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-03 02:45:43,122 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-03 02:45:43,122 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-03 02:45:43,123 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-03 02:45:43,123 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-03 02:45:43,123 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-03 02:45:43,123 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-03 02:45:43,123 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-03 02:45:43,123 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-03 02:45:43,124 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-03 02:45:43,124 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-03 02:45:43,124 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:45:43,124 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-03 02:45:43,125 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-03 02:45:43,125 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-03 02:45:43,125 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-03 02:45:43,125 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-03 02:45:43,125 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-03 02:45:43,125 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-03 02:45:43,126 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-03 02:45:43,126 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-03 02:45:43,126 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-03 02:45:43,126 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-03 02:45:43,126 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-03 02:45:43,126 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-03 02:45:43,127 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-03 02:45:43,127 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-03 02:45:43,127 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-10-03 02:45:43,127 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-03 02:45:43,127 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-03 02:45:43,128 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-03 02:45:43,128 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-03 02:45:43,128 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-03 02:45:43,129 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-03 02:45:43,129 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-03 02:45:43,129 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-03 02:45:43,130 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-03 02:45:43,130 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-03 02:45:43,130 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-03 02:45:43,130 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-03 02:45:43,130 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2019-10-03 02:45:43,131 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-03 02:45:43,131 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-03 02:45:43,131 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-03 02:45:43,131 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__weight [2019-10-03 02:45:43,132 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-03 02:45:43,132 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-03 02:45:43,132 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-03 02:45:43,132 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__twothirdsfull [2019-10-03 02:45:43,132 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-03 02:45:43,133 INFO L138 BoogieDeclarations]: Found implementation of procedure printState__wrappee__twothirdsfull [2019-10-03 02:45:43,133 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-03 02:45:43,133 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-03 02:45:43,134 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:45:43,134 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:45:43,134 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-03 02:45:43,135 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-03 02:45:43,135 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-03 02:45:43,135 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-03 02:45:43,135 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-03 02:45:43,135 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-03 02:45:43,136 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-03 02:45:43,137 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-03 02:45:43,137 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-03 02:45:43,137 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-03 02:45:43,138 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-03 02:45:43,138 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:45:43,138 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:45:43,138 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-03 02:45:43,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:45:43,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:45:43,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:45:43,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:45:43,139 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-03 02:45:43,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:45:43,139 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-03 02:45:43,139 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-03 02:45:43,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:45:43,140 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-03 02:45:43,140 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-03 02:45:43,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:45:43,140 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-03 02:45:43,140 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-03 02:45:43,141 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-03 02:45:43,141 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-03 02:45:43,141 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-03 02:45:43,141 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-03 02:45:43,141 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-03 02:45:43,141 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-03 02:45:43,141 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2019-10-03 02:45:43,142 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__2 [2019-10-03 02:45:43,142 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-03 02:45:43,142 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-03 02:45:43,142 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-03 02:45:43,143 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-03 02:45:43,143 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-03 02:45:43,144 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-03 02:45:43,144 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-03 02:45:43,144 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-03 02:45:43,144 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-03 02:45:43,146 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-03 02:45:43,146 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-03 02:45:43,146 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-03 02:45:43,146 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-03 02:45:43,146 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-03 02:45:43,147 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-03 02:45:43,147 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-03 02:45:43,147 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-03 02:45:43,147 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-03 02:45:43,148 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-03 02:45:43,148 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:45:43,148 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-03 02:45:43,148 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-03 02:45:43,148 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-03 02:45:43,148 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-03 02:45:43,149 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-03 02:45:43,152 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-03 02:45:43,153 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-03 02:45:43,153 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-03 02:45:43,153 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-03 02:45:43,160 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-03 02:45:43,160 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-03 02:45:43,160 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-03 02:45:43,160 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-03 02:45:43,160 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-03 02:45:43,161 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-10-03 02:45:43,161 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-03 02:45:43,161 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-03 02:45:43,161 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-03 02:45:43,161 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-03 02:45:43,161 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-03 02:45:43,161 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2019-10-03 02:45:43,161 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-03 02:45:43,162 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-03 02:45:43,162 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__weight [2019-10-03 02:45:43,162 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-03 02:45:43,162 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-03 02:45:43,163 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-03 02:45:43,163 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__twothirdsfull [2019-10-03 02:45:43,163 INFO L130 BoogieDeclarations]: Found specification of procedure printState__wrappee__twothirdsfull [2019-10-03 02:45:43,163 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-03 02:45:43,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:45:43,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 02:45:43,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:45:45,499 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:45:45,499 INFO L283 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-03 02:45:45,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:45:45 BoogieIcfgContainer [2019-10-03 02:45:45,502 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:45:45,504 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:45:45,504 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:45:45,508 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:45:45,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:45:41" (1/3) ... [2019-10-03 02:45:45,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e9cb077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:45:45, skipping insertion in model container [2019-10-03 02:45:45,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:42" (2/3) ... [2019-10-03 02:45:45,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e9cb077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:45:45, skipping insertion in model container [2019-10-03 02:45:45,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:45:45" (3/3) ... [2019-10-03 02:45:45,513 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product22.cil.c [2019-10-03 02:45:45,527 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:45:45,544 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:45:45,565 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:45:45,595 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:45:45,595 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:45:45,595 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:45:45,595 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:45:45,596 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:45:45,596 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:45:45,596 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:45:45,596 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:45:45,644 INFO L276 IsEmpty]: Start isEmpty. Operand 812 states. [2019-10-03 02:45:45,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-10-03 02:45:45,680 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:45,682 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-03 02:45:45,685 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:45,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:45,691 INFO L82 PathProgramCache]: Analyzing trace with hash -1780237072, now seen corresponding path program 1 times [2019-10-03 02:45:45,693 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:45,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:45,762 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:45,763 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:45,763 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:46,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:46,448 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:45:46,450 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:46,451 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:45:46,451 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:46,458 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:45:46,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:45:46,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:45:46,481 INFO L87 Difference]: Start difference. First operand 812 states. Second operand 7 states. [2019-10-03 02:45:46,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:46,775 INFO L93 Difference]: Finished difference Result 664 states and 1051 transitions. [2019-10-03 02:45:46,776 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:45:46,777 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 93 [2019-10-03 02:45:46,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:46,815 INFO L225 Difference]: With dead ends: 664 [2019-10-03 02:45:46,817 INFO L226 Difference]: Without dead ends: 653 [2019-10-03 02:45:46,819 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:45:46,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2019-10-03 02:45:46,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 651. [2019-10-03 02:45:46,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 651 states. [2019-10-03 02:45:46,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 1034 transitions. [2019-10-03 02:45:46,939 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 1034 transitions. Word has length 93 [2019-10-03 02:45:46,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:46,940 INFO L475 AbstractCegarLoop]: Abstraction has 651 states and 1034 transitions. [2019-10-03 02:45:46,940 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:45:46,940 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 1034 transitions. [2019-10-03 02:45:46,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-03 02:45:46,949 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:46,949 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-03 02:45:46,950 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:46,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:46,951 INFO L82 PathProgramCache]: Analyzing trace with hash 1958663701, now seen corresponding path program 1 times [2019-10-03 02:45:46,951 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:46,955 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:46,955 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:46,956 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:46,956 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:47,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:47,194 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:45:47,194 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:47,194 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-03 02:45:47,194 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:47,199 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-03 02:45:47,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-03 02:45:47,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-03 02:45:47,205 INFO L87 Difference]: Start difference. First operand 651 states and 1034 transitions. Second operand 4 states. [2019-10-03 02:45:47,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:47,305 INFO L93 Difference]: Finished difference Result 649 states and 1029 transitions. [2019-10-03 02:45:47,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-03 02:45:47,306 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 94 [2019-10-03 02:45:47,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:47,315 INFO L225 Difference]: With dead ends: 649 [2019-10-03 02:45:47,316 INFO L226 Difference]: Without dead ends: 633 [2019-10-03 02:45:47,317 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:45:47,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2019-10-03 02:45:47,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 633. [2019-10-03 02:45:47,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 633 states. [2019-10-03 02:45:47,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 1001 transitions. [2019-10-03 02:45:47,382 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 1001 transitions. Word has length 94 [2019-10-03 02:45:47,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:47,385 INFO L475 AbstractCegarLoop]: Abstraction has 633 states and 1001 transitions. [2019-10-03 02:45:47,385 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-03 02:45:47,386 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 1001 transitions. [2019-10-03 02:45:47,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-03 02:45:47,394 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:47,394 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-03 02:45:47,395 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:47,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:47,397 INFO L82 PathProgramCache]: Analyzing trace with hash 1392133917, now seen corresponding path program 1 times [2019-10-03 02:45:47,398 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:47,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:47,402 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:47,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:47,402 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:47,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:47,622 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:45:47,623 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:47,623 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:45:47,623 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:47,625 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:45:47,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:45:47,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:45:47,625 INFO L87 Difference]: Start difference. First operand 633 states and 1001 transitions. Second operand 7 states. [2019-10-03 02:45:47,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:47,821 INFO L93 Difference]: Finished difference Result 636 states and 1004 transitions. [2019-10-03 02:45:47,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:45:47,822 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 94 [2019-10-03 02:45:47,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:47,830 INFO L225 Difference]: With dead ends: 636 [2019-10-03 02:45:47,831 INFO L226 Difference]: Without dead ends: 627 [2019-10-03 02:45:47,831 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:45:47,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2019-10-03 02:45:47,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 627. [2019-10-03 02:45:47,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 627 states. [2019-10-03 02:45:47,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 988 transitions. [2019-10-03 02:45:47,885 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 988 transitions. Word has length 94 [2019-10-03 02:45:47,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:47,887 INFO L475 AbstractCegarLoop]: Abstraction has 627 states and 988 transitions. [2019-10-03 02:45:47,887 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:45:47,887 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 988 transitions. [2019-10-03 02:45:47,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2019-10-03 02:45:47,892 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:47,892 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-03 02:45:47,892 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:47,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:47,893 INFO L82 PathProgramCache]: Analyzing trace with hash -1203424844, now seen corresponding path program 1 times [2019-10-03 02:45:47,893 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:47,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:47,899 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:47,899 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:47,899 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:47,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:48,102 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:45:48,102 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:48,103 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:45:48,103 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:48,103 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:45:48,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:45:48,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:45:48,105 INFO L87 Difference]: Start difference. First operand 627 states and 988 transitions. Second operand 7 states. [2019-10-03 02:45:48,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:48,210 INFO L93 Difference]: Finished difference Result 630 states and 991 transitions. [2019-10-03 02:45:48,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:45:48,211 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 95 [2019-10-03 02:45:48,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:48,220 INFO L225 Difference]: With dead ends: 630 [2019-10-03 02:45:48,220 INFO L226 Difference]: Without dead ends: 621 [2019-10-03 02:45:48,221 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:45:48,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2019-10-03 02:45:48,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 621. [2019-10-03 02:45:48,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 621 states. [2019-10-03 02:45:48,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 975 transitions. [2019-10-03 02:45:48,249 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 975 transitions. Word has length 95 [2019-10-03 02:45:48,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:48,250 INFO L475 AbstractCegarLoop]: Abstraction has 621 states and 975 transitions. [2019-10-03 02:45:48,250 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:45:48,250 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 975 transitions. [2019-10-03 02:45:48,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2019-10-03 02:45:48,252 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:48,252 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-03 02:45:48,253 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:48,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:48,253 INFO L82 PathProgramCache]: Analyzing trace with hash 2078787873, now seen corresponding path program 1 times [2019-10-03 02:45:48,253 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:48,258 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:48,258 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:48,259 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:48,259 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:48,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:48,427 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:45:48,427 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:48,427 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:45:48,428 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:48,429 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:45:48,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:45:48,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:45:48,430 INFO L87 Difference]: Start difference. First operand 621 states and 975 transitions. Second operand 7 states. [2019-10-03 02:45:48,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:48,523 INFO L93 Difference]: Finished difference Result 624 states and 978 transitions. [2019-10-03 02:45:48,524 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:45:48,524 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 96 [2019-10-03 02:45:48,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:48,530 INFO L225 Difference]: With dead ends: 624 [2019-10-03 02:45:48,530 INFO L226 Difference]: Without dead ends: 615 [2019-10-03 02:45:48,531 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:45:48,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2019-10-03 02:45:48,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 615. [2019-10-03 02:45:48,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 615 states. [2019-10-03 02:45:48,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 962 transitions. [2019-10-03 02:45:48,557 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 962 transitions. Word has length 96 [2019-10-03 02:45:48,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:48,558 INFO L475 AbstractCegarLoop]: Abstraction has 615 states and 962 transitions. [2019-10-03 02:45:48,558 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:45:48,558 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 962 transitions. [2019-10-03 02:45:48,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2019-10-03 02:45:48,560 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:48,560 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-03 02:45:48,560 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:48,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:48,561 INFO L82 PathProgramCache]: Analyzing trace with hash -827237598, now seen corresponding path program 1 times [2019-10-03 02:45:48,561 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:48,564 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:48,565 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:48,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:48,565 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:48,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:48,706 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:45:48,707 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:48,707 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:45:48,707 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:48,708 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:45:48,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:45:48,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:45:48,708 INFO L87 Difference]: Start difference. First operand 615 states and 962 transitions. Second operand 7 states. [2019-10-03 02:45:48,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:48,797 INFO L93 Difference]: Finished difference Result 618 states and 965 transitions. [2019-10-03 02:45:48,798 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:45:48,798 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 96 [2019-10-03 02:45:48,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:48,804 INFO L225 Difference]: With dead ends: 618 [2019-10-03 02:45:48,804 INFO L226 Difference]: Without dead ends: 615 [2019-10-03 02:45:48,805 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:45:48,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2019-10-03 02:45:48,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 615. [2019-10-03 02:45:48,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 615 states. [2019-10-03 02:45:48,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 961 transitions. [2019-10-03 02:45:48,830 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 961 transitions. Word has length 96 [2019-10-03 02:45:48,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:48,830 INFO L475 AbstractCegarLoop]: Abstraction has 615 states and 961 transitions. [2019-10-03 02:45:48,830 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:45:48,831 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 961 transitions. [2019-10-03 02:45:48,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-10-03 02:45:48,832 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:48,833 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-03 02:45:48,833 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:48,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:48,833 INFO L82 PathProgramCache]: Analyzing trace with hash -1406644616, now seen corresponding path program 1 times [2019-10-03 02:45:48,834 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:48,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:48,838 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:48,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:48,838 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:48,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:49,031 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:45:49,031 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:49,031 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:45:49,032 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:49,032 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:45:49,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:45:49,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:45:49,033 INFO L87 Difference]: Start difference. First operand 615 states and 961 transitions. Second operand 5 states. [2019-10-03 02:45:49,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:49,104 INFO L93 Difference]: Finished difference Result 617 states and 962 transitions. [2019-10-03 02:45:49,104 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 02:45:49,104 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 97 [2019-10-03 02:45:49,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:49,109 INFO L225 Difference]: With dead ends: 617 [2019-10-03 02:45:49,110 INFO L226 Difference]: Without dead ends: 615 [2019-10-03 02:45:49,110 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:45:49,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2019-10-03 02:45:49,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 615. [2019-10-03 02:45:49,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 615 states. [2019-10-03 02:45:49,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 960 transitions. [2019-10-03 02:45:49,130 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 960 transitions. Word has length 97 [2019-10-03 02:45:49,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:49,130 INFO L475 AbstractCegarLoop]: Abstraction has 615 states and 960 transitions. [2019-10-03 02:45:49,131 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:45:49,131 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 960 transitions. [2019-10-03 02:45:49,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-10-03 02:45:49,132 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:49,133 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-03 02:45:49,133 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:49,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:49,133 INFO L82 PathProgramCache]: Analyzing trace with hash -1540636153, now seen corresponding path program 1 times [2019-10-03 02:45:49,134 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:49,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:49,137 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:49,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:49,138 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:49,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:49,296 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:45:49,296 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:49,296 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:45:49,296 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:49,297 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:45:49,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:45:49,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:45:49,298 INFO L87 Difference]: Start difference. First operand 615 states and 960 transitions. Second operand 5 states. [2019-10-03 02:45:49,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:49,361 INFO L93 Difference]: Finished difference Result 617 states and 961 transitions. [2019-10-03 02:45:49,364 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 02:45:49,364 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 98 [2019-10-03 02:45:49,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:49,370 INFO L225 Difference]: With dead ends: 617 [2019-10-03 02:45:49,371 INFO L226 Difference]: Without dead ends: 615 [2019-10-03 02:45:49,371 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:45:49,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2019-10-03 02:45:49,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 615. [2019-10-03 02:45:49,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 615 states. [2019-10-03 02:45:49,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 959 transitions. [2019-10-03 02:45:49,391 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 959 transitions. Word has length 98 [2019-10-03 02:45:49,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:49,393 INFO L475 AbstractCegarLoop]: Abstraction has 615 states and 959 transitions. [2019-10-03 02:45:49,393 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:45:49,393 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 959 transitions. [2019-10-03 02:45:49,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2019-10-03 02:45:49,396 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:49,396 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:45:49,396 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:49,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:49,397 INFO L82 PathProgramCache]: Analyzing trace with hash -846468685, now seen corresponding path program 1 times [2019-10-03 02:45:49,397 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:49,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:49,401 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:49,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:49,401 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:49,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:49,522 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:45:49,522 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:49,522 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:45:49,522 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:49,523 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:45:49,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:45:49,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:45:49,523 INFO L87 Difference]: Start difference. First operand 615 states and 959 transitions. Second operand 5 states. [2019-10-03 02:45:49,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:49,584 INFO L93 Difference]: Finished difference Result 617 states and 960 transitions. [2019-10-03 02:45:49,585 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 02:45:49,585 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 99 [2019-10-03 02:45:49,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:49,590 INFO L225 Difference]: With dead ends: 617 [2019-10-03 02:45:49,591 INFO L226 Difference]: Without dead ends: 615 [2019-10-03 02:45:49,592 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:45:49,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2019-10-03 02:45:49,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 615. [2019-10-03 02:45:49,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 615 states. [2019-10-03 02:45:49,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 958 transitions. [2019-10-03 02:45:49,623 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 958 transitions. Word has length 99 [2019-10-03 02:45:49,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:49,624 INFO L475 AbstractCegarLoop]: Abstraction has 615 states and 958 transitions. [2019-10-03 02:45:49,624 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:45:49,624 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 958 transitions. [2019-10-03 02:45:49,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2019-10-03 02:45:49,625 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:49,626 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-03 02:45:49,626 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:49,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:49,626 INFO L82 PathProgramCache]: Analyzing trace with hash -249175838, now seen corresponding path program 1 times [2019-10-03 02:45:49,627 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:49,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:49,635 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:49,635 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:49,635 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:49,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:49,864 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:45:49,865 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:49,865 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:45:49,865 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:49,865 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:45:49,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:45:49,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:45:49,866 INFO L87 Difference]: Start difference. First operand 615 states and 958 transitions. Second operand 5 states. [2019-10-03 02:45:49,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:49,924 INFO L93 Difference]: Finished difference Result 617 states and 959 transitions. [2019-10-03 02:45:49,924 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 02:45:49,925 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 100 [2019-10-03 02:45:49,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:49,930 INFO L225 Difference]: With dead ends: 617 [2019-10-03 02:45:49,930 INFO L226 Difference]: Without dead ends: 615 [2019-10-03 02:45:49,930 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:45:49,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2019-10-03 02:45:49,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 615. [2019-10-03 02:45:49,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 615 states. [2019-10-03 02:45:49,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 957 transitions. [2019-10-03 02:45:49,951 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 957 transitions. Word has length 100 [2019-10-03 02:45:49,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:49,952 INFO L475 AbstractCegarLoop]: Abstraction has 615 states and 957 transitions. [2019-10-03 02:45:49,952 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:45:49,952 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 957 transitions. [2019-10-03 02:45:49,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-10-03 02:45:49,953 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:49,954 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-03 02:45:49,954 INFO L418 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:49,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:49,954 INFO L82 PathProgramCache]: Analyzing trace with hash -715834196, now seen corresponding path program 1 times [2019-10-03 02:45:49,955 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:49,957 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:49,958 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:49,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:49,958 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:50,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:50,119 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:45:50,119 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:50,119 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-03 02:45:50,120 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:50,120 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-03 02:45:50,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-03 02:45:50,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-03 02:45:50,121 INFO L87 Difference]: Start difference. First operand 615 states and 957 transitions. Second operand 9 states. [2019-10-03 02:45:50,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:50,245 INFO L93 Difference]: Finished difference Result 619 states and 960 transitions. [2019-10-03 02:45:50,246 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-03 02:45:50,246 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 101 [2019-10-03 02:45:50,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:50,254 INFO L225 Difference]: With dead ends: 619 [2019-10-03 02:45:50,254 INFO L226 Difference]: Without dead ends: 615 [2019-10-03 02:45:50,255 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2019-10-03 02:45:50,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2019-10-03 02:45:50,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 615. [2019-10-03 02:45:50,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 615 states. [2019-10-03 02:45:50,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 956 transitions. [2019-10-03 02:45:50,287 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 956 transitions. Word has length 101 [2019-10-03 02:45:50,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:50,287 INFO L475 AbstractCegarLoop]: Abstraction has 615 states and 956 transitions. [2019-10-03 02:45:50,287 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-03 02:45:50,287 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 956 transitions. [2019-10-03 02:45:50,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-10-03 02:45:50,290 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:50,290 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-03 02:45:50,291 INFO L418 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:50,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:50,291 INFO L82 PathProgramCache]: Analyzing trace with hash 1639971054, now seen corresponding path program 1 times [2019-10-03 02:45:50,291 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:50,295 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:50,296 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:50,296 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:50,296 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:50,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:50,538 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-03 02:45:50,538 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:45:50,539 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:45:50,540 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 102 with the following transitions: [2019-10-03 02:45:50,542 INFO L207 CegarAbsIntRunner]: [55], [56], [57], [58], [140], [144], [147], [393], [460], [462], [464], [540], [543], [546], [549], [692], [693], [694], [699], [732], [733], [768], [770], [811], [847], [883], [919], [955], [958], [961], [994], [995], [996], [1047], [1052], [1057], [1062], [1067], [1070], [1074], [1259], [1262], [1284], [1424], [1425], [1461], [1464], [1466], [1469], [1545], [1547], [1549], [1552], [1565], [1579], [1593], [1607], [1621], [1695], [2013], [2537], [2538], [2539], [2540], [2541], [2542], [2543], [2544], [2545], [2591], [2592], [2593], [2594], [2595], [2596], [2597], [2598], [2599], [2627], [2628], [2629], [2630], [2635], [2663], [2664], [2671], [2672], [2673], [2699], [2713], [2714], [2715], [2731], [2732], [2733], [2734], [2825], [2826], [2827] [2019-10-03 02:45:50,627 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 02:45:50,627 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 02:45:50,807 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 02:45:50,809 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 139 root evaluator evaluations with a maximum evaluation depth of 0. Performed 139 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 260 variables. [2019-10-03 02:45:50,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:50,814 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 02:45:50,912 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-03 02:45:50,913 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 02:45:50,920 INFO L420 sIntCurrentIteration]: We unified 100 AI predicates to 100 [2019-10-03 02:45:50,921 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 02:45:50,922 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:45:50,922 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 11 [2019-10-03 02:45:50,922 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:50,923 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:45:50,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:45:50,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:45:50,924 INFO L87 Difference]: Start difference. First operand 615 states and 956 transitions. Second operand 2 states. [2019-10-03 02:45:50,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:50,924 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-10-03 02:45:50,924 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:45:50,924 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 101 [2019-10-03 02:45:50,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:50,925 INFO L225 Difference]: With dead ends: 2 [2019-10-03 02:45:50,925 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:45:50,925 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:45:50,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:45:50,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:45:50,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:45:50,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:45:50,926 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 101 [2019-10-03 02:45:50,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:50,926 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:45:50,926 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:45:50,927 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:45:50,927 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:45:50,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:45:50 BoogieIcfgContainer [2019-10-03 02:45:50,932 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:45:50,935 INFO L168 Benchmark]: Toolchain (without parser) took 9216.41 ms. Allocated memory was 133.2 MB in the beginning and 396.9 MB in the end (delta: 263.7 MB). Free memory was 85.6 MB in the beginning and 155.4 MB in the end (delta: -69.7 MB). Peak memory consumption was 194.0 MB. Max. memory is 7.1 GB. [2019-10-03 02:45:50,937 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 133.2 MB. Free memory was 106.9 MB in the beginning and 106.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 02:45:50,939 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1074.25 ms. Allocated memory was 133.2 MB in the beginning and 202.4 MB in the end (delta: 69.2 MB). Free memory was 85.4 MB in the beginning and 138.2 MB in the end (delta: -52.8 MB). Peak memory consumption was 34.2 MB. Max. memory is 7.1 GB. [2019-10-03 02:45:50,941 INFO L168 Benchmark]: Boogie Preprocessor took 232.15 ms. Allocated memory is still 202.4 MB. Free memory was 138.2 MB in the beginning and 128.6 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-10-03 02:45:50,946 INFO L168 Benchmark]: RCFGBuilder took 2475.71 ms. Allocated memory was 202.4 MB in the beginning and 266.3 MB in the end (delta: 64.0 MB). Free memory was 128.6 MB in the beginning and 139.3 MB in the end (delta: -10.7 MB). Peak memory consumption was 89.4 MB. Max. memory is 7.1 GB. [2019-10-03 02:45:50,948 INFO L168 Benchmark]: TraceAbstraction took 5428.94 ms. Allocated memory was 266.3 MB in the beginning and 396.9 MB in the end (delta: 130.5 MB). Free memory was 139.3 MB in the beginning and 155.4 MB in the end (delta: -16.1 MB). Peak memory consumption was 114.5 MB. Max. memory is 7.1 GB. [2019-10-03 02:45:50,962 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 133.2 MB. Free memory was 106.9 MB in the beginning and 106.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1074.25 ms. Allocated memory was 133.2 MB in the beginning and 202.4 MB in the end (delta: 69.2 MB). Free memory was 85.4 MB in the beginning and 138.2 MB in the end (delta: -52.8 MB). Peak memory consumption was 34.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 232.15 ms. Allocated memory is still 202.4 MB. Free memory was 138.2 MB in the beginning and 128.6 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2475.71 ms. Allocated memory was 202.4 MB in the beginning and 266.3 MB in the end (delta: 64.0 MB). Free memory was 128.6 MB in the beginning and 139.3 MB in the end (delta: -10.7 MB). Peak memory consumption was 89.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5428.94 ms. Allocated memory was 266.3 MB in the beginning and 396.9 MB in the end (delta: 130.5 MB). Free memory was 139.3 MB in the beginning and 155.4 MB in the end (delta: -16.1 MB). Peak memory consumption was 114.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 145]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 76 procedures, 934 locations, 1 error locations. SAFE Result, 5.3s OverallTime, 12 OverallIterations, 2 TraceHistogramMax, 1.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 10669 SDtfs, 391 SDslu, 44182 SDs, 0 SdLazy, 574 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 180 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=812occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 2.31 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 1164 NumberOfCodeBlocks, 1164 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1152 ConstructedInterpolants, 0 QuantifiedInterpolants, 140400 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 11 PerfectInterpolantSequences, 34/36 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...