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_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:45:27,741 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:45:27,743 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:45:27,756 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:45:27,756 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:45:27,758 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:45:27,759 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:45:27,761 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:45:27,763 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:45:27,763 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:45:27,764 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:45:27,766 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:45:27,766 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:45:27,767 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:45:27,768 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:45:27,769 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:45:27,770 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:45:27,771 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:45:27,773 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:45:27,775 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:45:27,777 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:45:27,779 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:45:27,780 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:45:27,781 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:45:27,783 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:45:27,784 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:45:27,784 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:45:27,785 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:45:27,786 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:45:27,790 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:45:27,790 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:45:27,793 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:45:27,794 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:45:27,794 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:45:27,797 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:45:27,798 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:45:27,801 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:45:27,801 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:45:27,801 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:45:27,802 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:45:27,803 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:45:27,807 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 02:45:27,835 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:45:27,835 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:45:27,836 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:45:27,837 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:45:27,838 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:45:27,838 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:45:27,838 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:45:27,838 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:45:27,838 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:45:27,839 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:45:27,841 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:45:27,841 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:45:27,841 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:45:27,842 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:45:27,842 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:45:27,842 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:45:27,842 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:45:27,842 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:45:27,843 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:45:27,843 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:45:27,843 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:45:27,844 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:45:27,844 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:45:27,844 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:45:27,844 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:45:27,845 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:45:27,845 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:45:27,845 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:45:27,845 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:45:27,845 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:45:27,897 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:45:27,913 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:45:27,917 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:45:27,918 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:45:27,919 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:45:27,920 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_product20.cil.c [2019-10-03 02:45:27,994 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02bc14d2b/297b1f3daa64429e81681c6a234b7cb5/FLAGea4d35722 [2019-10-03 02:45:28,604 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:45:28,605 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product20.cil.c [2019-10-03 02:45:28,637 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02bc14d2b/297b1f3daa64429e81681c6a234b7cb5/FLAGea4d35722 [2019-10-03 02:45:28,794 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02bc14d2b/297b1f3daa64429e81681c6a234b7cb5 [2019-10-03 02:45:28,805 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:45:28,806 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:45:28,811 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:45:28,811 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:45:28,815 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:45:28,816 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:45:28" (1/1) ... [2019-10-03 02:45:28,820 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4af1711a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:28, skipping insertion in model container [2019-10-03 02:45:28,820 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:45:28" (1/1) ... [2019-10-03 02:45:28,828 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:45:28,927 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:45:29,651 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:45:29,675 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:45:29,831 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:45:29,892 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:45:29,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:29 WrapperNode [2019-10-03 02:45:29,893 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:45:29,893 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:45:29,893 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:45:29,893 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:45:29,904 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:29" (1/1) ... [2019-10-03 02:45:29,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:29" (1/1) ... [2019-10-03 02:45:29,936 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:29" (1/1) ... [2019-10-03 02:45:29,936 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:29" (1/1) ... [2019-10-03 02:45:29,996 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:29" (1/1) ... [2019-10-03 02:45:30,029 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:29" (1/1) ... [2019-10-03 02:45:30,045 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:29" (1/1) ... [2019-10-03 02:45:30,068 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:45:30,069 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:45:30,069 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:45:30,069 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:45:30,073 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:29" (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 02:45:30,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:45:30,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:45:30,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-03 02:45:30,158 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-03 02:45:30,158 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-03 02:45:30,159 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-03 02:45:30,159 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-03 02:45:30,159 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-03 02:45:30,159 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-03 02:45:30,160 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-03 02:45:30,160 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-03 02:45:30,161 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-03 02:45:30,161 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-03 02:45:30,162 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-03 02:45:30,162 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-03 02:45:30,163 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-03 02:45:30,163 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-10-03 02:45:30,164 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-03 02:45:30,164 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-03 02:45:30,164 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-03 02:45:30,164 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-03 02:45:30,164 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-03 02:45:30,165 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-03 02:45:30,165 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-03 02:45:30,165 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-03 02:45:30,166 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-03 02:45:30,166 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-03 02:45:30,166 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-03 02:45:30,166 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-03 02:45:30,167 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2019-10-03 02:45:30,167 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-03 02:45:30,167 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-03 02:45:30,167 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-03 02:45:30,167 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__weight [2019-10-03 02:45:30,168 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-03 02:45:30,168 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-03 02:45:30,168 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-03 02:45:30,168 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2019-10-03 02:45:30,168 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-03 02:45:30,168 INFO L138 BoogieDeclarations]: Found implementation of procedure printState__wrappee__executivefloor [2019-10-03 02:45:30,169 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-03 02:45:30,169 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-03 02:45:30,169 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2019-10-03 02:45:30,169 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2019-10-03 02:45:30,169 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-03 02:45:30,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-03 02:45:30,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-03 02:45:30,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-03 02:45:30,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-03 02:45:30,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-03 02:45:30,170 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-03 02:45:30,171 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-03 02:45:30,171 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-03 02:45:30,171 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-03 02:45:30,171 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-03 02:45:30,171 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-03 02:45:30,171 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-03 02:45:30,172 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-03 02:45:30,172 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-03 02:45:30,173 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-03 02:45:30,173 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-03 02:45:30,173 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-03 02:45:30,173 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-03 02:45:30,173 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-03 02:45:30,174 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-03 02:45:30,174 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-03 02:45:30,175 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-03 02:45:30,175 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-03 02:45:30,175 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-03 02:45:30,175 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-03 02:45:30,175 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-03 02:45:30,175 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-03 02:45:30,176 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:45:30,177 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-03 02:45:30,177 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-03 02:45:30,177 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-03 02:45:30,177 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2019-10-03 02:45:30,177 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__2 [2019-10-03 02:45:30,178 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:45:30,178 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:45:30,179 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-03 02:45:30,179 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-03 02:45:30,179 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-03 02:45:30,179 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-03 02:45:30,179 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-03 02:45:30,181 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-03 02:45:30,181 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-03 02:45:30,182 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-03 02:45:30,182 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-03 02:45:30,182 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-03 02:45:30,182 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-03 02:45:30,182 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-03 02:45:30,183 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-03 02:45:30,183 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-03 02:45:30,183 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-03 02:45:30,183 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-03 02:45:30,183 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-03 02:45:30,183 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-03 02:45:30,183 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-03 02:45:30,184 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-03 02:45:30,184 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-03 02:45:30,184 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-03 02:45:30,184 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-03 02:45:30,184 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-03 02:45:30,184 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-03 02:45:30,185 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-03 02:45:30,185 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2019-10-03 02:45:30,185 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2019-10-03 02:45:30,185 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-10-03 02:45:30,185 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-03 02:45:30,185 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-03 02:45:30,186 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-03 02:45:30,186 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-03 02:45:30,186 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-03 02:45:30,186 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-03 02:45:30,186 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2019-10-03 02:45:30,187 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-03 02:45:30,187 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-03 02:45:30,188 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__weight [2019-10-03 02:45:30,188 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-03 02:45:30,188 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-03 02:45:30,189 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-03 02:45:30,189 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2019-10-03 02:45:30,190 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2019-10-03 02:45:30,190 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__2 [2019-10-03 02:45:30,190 INFO L130 BoogieDeclarations]: Found specification of procedure printState__wrappee__executivefloor [2019-10-03 02:45:30,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:45:30,191 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-03 02:45:30,191 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-03 02:45:30,191 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:45:30,191 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:45:30,192 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-03 02:45:30,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:45:30,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:45:30,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:45:30,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:45:30,192 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-03 02:45:30,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:45:30,197 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-03 02:45:30,200 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-03 02:45:30,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:45:30,201 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-03 02:45:30,201 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-03 02:45:30,209 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-03 02:45:30,210 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-03 02:45:30,210 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-03 02:45:30,210 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-03 02:45:30,210 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-03 02:45:30,210 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-03 02:45:30,210 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-03 02:45:30,210 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-03 02:45:30,211 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-03 02:45:30,211 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-03 02:45:30,211 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-03 02:45:30,211 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-03 02:45:30,211 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-03 02:45:30,211 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-03 02:45:30,211 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-03 02:45:30,212 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-03 02:45:30,212 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-03 02:45:30,212 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-03 02:45:30,212 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-03 02:45:30,212 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-03 02:45:30,212 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-03 02:45:30,212 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-03 02:45:30,212 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-03 02:45:30,213 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-03 02:45:30,213 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:45:30,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:45:30,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 02:45:30,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:45:32,856 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:45:32,857 INFO L283 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-03 02:45:32,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:45:32 BoogieIcfgContainer [2019-10-03 02:45:32,859 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:45:32,861 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:45:32,861 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:45:32,864 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:45:32,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:45:28" (1/3) ... [2019-10-03 02:45:32,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3975743b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:45:32, skipping insertion in model container [2019-10-03 02:45:32,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:29" (2/3) ... [2019-10-03 02:45:32,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3975743b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:45:32, skipping insertion in model container [2019-10-03 02:45:32,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:45:32" (3/3) ... [2019-10-03 02:45:32,868 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product20.cil.c [2019-10-03 02:45:32,879 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:45:32,897 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:45:32,915 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:45:32,946 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:45:32,946 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:45:32,946 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:45:32,946 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:45:32,946 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:45:32,947 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:45:32,947 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:45:32,947 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:45:32,996 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states. [2019-10-03 02:45:33,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-10-03 02:45:33,029 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:33,030 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 02:45:33,033 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:33,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:33,040 INFO L82 PathProgramCache]: Analyzing trace with hash 728591762, now seen corresponding path program 1 times [2019-10-03 02:45:33,043 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:33,109 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:33,109 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:33,110 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:33,110 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:33,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:33,775 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 02:45:33,778 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:33,778 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:45:33,778 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:33,785 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:45:33,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:45:33,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:45:33,805 INFO L87 Difference]: Start difference. First operand 809 states. Second operand 7 states. [2019-10-03 02:45:34,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:34,042 INFO L93 Difference]: Finished difference Result 661 states and 1044 transitions. [2019-10-03 02:45:34,043 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:45:34,044 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 93 [2019-10-03 02:45:34,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:34,081 INFO L225 Difference]: With dead ends: 661 [2019-10-03 02:45:34,081 INFO L226 Difference]: Without dead ends: 650 [2019-10-03 02:45:34,083 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:45:34,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2019-10-03 02:45:34,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 648. [2019-10-03 02:45:34,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 648 states. [2019-10-03 02:45:34,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 1027 transitions. [2019-10-03 02:45:34,199 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 1027 transitions. Word has length 93 [2019-10-03 02:45:34,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:34,200 INFO L475 AbstractCegarLoop]: Abstraction has 648 states and 1027 transitions. [2019-10-03 02:45:34,200 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:45:34,201 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 1027 transitions. [2019-10-03 02:45:34,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-03 02:45:34,205 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:34,206 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 02:45:34,206 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:34,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:34,207 INFO L82 PathProgramCache]: Analyzing trace with hash -2105197679, now seen corresponding path program 1 times [2019-10-03 02:45:34,207 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:34,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:34,211 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:34,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:34,211 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:34,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:34,397 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 02:45:34,398 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:34,398 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-03 02:45:34,398 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:34,404 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-03 02:45:34,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-03 02:45:34,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-03 02:45:34,413 INFO L87 Difference]: Start difference. First operand 648 states and 1027 transitions. Second operand 4 states. [2019-10-03 02:45:34,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:34,471 INFO L93 Difference]: Finished difference Result 646 states and 1022 transitions. [2019-10-03 02:45:34,472 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-03 02:45:34,472 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 94 [2019-10-03 02:45:34,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:34,478 INFO L225 Difference]: With dead ends: 646 [2019-10-03 02:45:34,478 INFO L226 Difference]: Without dead ends: 630 [2019-10-03 02:45:34,479 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 02:45:34,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2019-10-03 02:45:34,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 630. [2019-10-03 02:45:34,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 630 states. [2019-10-03 02:45:34,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 994 transitions. [2019-10-03 02:45:34,516 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 994 transitions. Word has length 94 [2019-10-03 02:45:34,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:34,517 INFO L475 AbstractCegarLoop]: Abstraction has 630 states and 994 transitions. [2019-10-03 02:45:34,517 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-03 02:45:34,517 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 994 transitions. [2019-10-03 02:45:34,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-03 02:45:34,520 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:34,521 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 02:45:34,521 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:34,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:34,521 INFO L82 PathProgramCache]: Analyzing trace with hash 1592349723, now seen corresponding path program 1 times [2019-10-03 02:45:34,522 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:34,525 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:34,525 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:34,525 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:34,525 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:34,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:34,787 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 02:45:34,787 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:34,787 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:45:34,787 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:34,788 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:45:34,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:45:34,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:45:34,789 INFO L87 Difference]: Start difference. First operand 630 states and 994 transitions. Second operand 7 states. [2019-10-03 02:45:34,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:34,878 INFO L93 Difference]: Finished difference Result 633 states and 997 transitions. [2019-10-03 02:45:34,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:45:34,879 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 94 [2019-10-03 02:45:34,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:34,884 INFO L225 Difference]: With dead ends: 633 [2019-10-03 02:45:34,884 INFO L226 Difference]: Without dead ends: 624 [2019-10-03 02:45:34,885 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 02:45:34,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2019-10-03 02:45:34,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 624. [2019-10-03 02:45:34,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 624 states. [2019-10-03 02:45:34,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 981 transitions. [2019-10-03 02:45:34,911 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 981 transitions. Word has length 94 [2019-10-03 02:45:34,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:34,911 INFO L475 AbstractCegarLoop]: Abstraction has 624 states and 981 transitions. [2019-10-03 02:45:34,911 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:45:34,911 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 981 transitions. [2019-10-03 02:45:34,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2019-10-03 02:45:34,913 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:34,913 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 02:45:34,914 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:34,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:34,914 INFO L82 PathProgramCache]: Analyzing trace with hash 444231126, now seen corresponding path program 1 times [2019-10-03 02:45:34,914 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:34,917 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:34,918 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:34,918 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:34,918 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:34,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:35,097 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 02:45:35,097 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:35,098 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:45:35,098 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:35,098 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:45:35,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:45:35,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:45:35,100 INFO L87 Difference]: Start difference. First operand 624 states and 981 transitions. Second operand 7 states. [2019-10-03 02:45:35,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:35,191 INFO L93 Difference]: Finished difference Result 627 states and 984 transitions. [2019-10-03 02:45:35,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:45:35,192 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 95 [2019-10-03 02:45:35,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:35,203 INFO L225 Difference]: With dead ends: 627 [2019-10-03 02:45:35,203 INFO L226 Difference]: Without dead ends: 618 [2019-10-03 02:45:35,204 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 02:45:35,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2019-10-03 02:45:35,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 618. [2019-10-03 02:45:35,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 618 states. [2019-10-03 02:45:35,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 968 transitions. [2019-10-03 02:45:35,241 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 968 transitions. Word has length 95 [2019-10-03 02:45:35,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:35,242 INFO L475 AbstractCegarLoop]: Abstraction has 618 states and 968 transitions. [2019-10-03 02:45:35,242 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:45:35,242 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 968 transitions. [2019-10-03 02:45:35,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2019-10-03 02:45:35,255 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:35,255 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 02:45:35,255 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:35,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:35,256 INFO L82 PathProgramCache]: Analyzing trace with hash 1352448671, now seen corresponding path program 1 times [2019-10-03 02:45:35,256 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:35,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:35,262 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:35,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:35,262 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:35,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:35,471 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 02:45:35,471 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:35,471 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:45:35,471 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:35,472 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:45:35,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:45:35,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:45:35,473 INFO L87 Difference]: Start difference. First operand 618 states and 968 transitions. Second operand 7 states. [2019-10-03 02:45:35,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:35,565 INFO L93 Difference]: Finished difference Result 621 states and 971 transitions. [2019-10-03 02:45:35,565 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:45:35,565 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 96 [2019-10-03 02:45:35,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:35,577 INFO L225 Difference]: With dead ends: 621 [2019-10-03 02:45:35,578 INFO L226 Difference]: Without dead ends: 612 [2019-10-03 02:45:35,578 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 02:45:35,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2019-10-03 02:45:35,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 612. [2019-10-03 02:45:35,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 612 states. [2019-10-03 02:45:35,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 955 transitions. [2019-10-03 02:45:35,607 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 955 transitions. Word has length 96 [2019-10-03 02:45:35,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:35,607 INFO L475 AbstractCegarLoop]: Abstraction has 612 states and 955 transitions. [2019-10-03 02:45:35,608 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:45:35,608 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 955 transitions. [2019-10-03 02:45:35,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2019-10-03 02:45:35,609 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:35,609 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 02:45:35,610 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:35,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:35,610 INFO L82 PathProgramCache]: Analyzing trace with hash -1553576800, now seen corresponding path program 1 times [2019-10-03 02:45:35,610 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:35,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:35,614 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:35,615 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:35,615 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:35,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:35,907 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 02:45:35,908 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:35,908 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:45:35,908 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:35,909 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:45:35,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:45:35,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:45:35,915 INFO L87 Difference]: Start difference. First operand 612 states and 955 transitions. Second operand 7 states. [2019-10-03 02:45:36,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:36,007 INFO L93 Difference]: Finished difference Result 615 states and 958 transitions. [2019-10-03 02:45:36,007 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:45:36,008 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 96 [2019-10-03 02:45:36,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:36,018 INFO L225 Difference]: With dead ends: 615 [2019-10-03 02:45:36,018 INFO L226 Difference]: Without dead ends: 612 [2019-10-03 02:45:36,019 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 02:45:36,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2019-10-03 02:45:36,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 612. [2019-10-03 02:45:36,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 612 states. [2019-10-03 02:45:36,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 954 transitions. [2019-10-03 02:45:36,042 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 954 transitions. Word has length 96 [2019-10-03 02:45:36,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:36,042 INFO L475 AbstractCegarLoop]: Abstraction has 612 states and 954 transitions. [2019-10-03 02:45:36,042 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:45:36,042 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 954 transitions. [2019-10-03 02:45:36,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-10-03 02:45:36,046 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:36,046 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 02:45:36,046 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:36,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:36,046 INFO L82 PathProgramCache]: Analyzing trace with hash 1582577178, now seen corresponding path program 1 times [2019-10-03 02:45:36,047 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:36,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:36,050 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:36,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:36,051 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:36,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:36,229 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 02:45:36,229 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:36,229 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:45:36,229 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:36,230 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:45:36,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:45:36,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:45:36,231 INFO L87 Difference]: Start difference. First operand 612 states and 954 transitions. Second operand 5 states. [2019-10-03 02:45:36,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:36,372 INFO L93 Difference]: Finished difference Result 614 states and 955 transitions. [2019-10-03 02:45:36,372 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 02:45:36,372 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 97 [2019-10-03 02:45:36,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:36,377 INFO L225 Difference]: With dead ends: 614 [2019-10-03 02:45:36,377 INFO L226 Difference]: Without dead ends: 612 [2019-10-03 02:45:36,377 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 02:45:36,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2019-10-03 02:45:36,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 612. [2019-10-03 02:45:36,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 612 states. [2019-10-03 02:45:36,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 953 transitions. [2019-10-03 02:45:36,401 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 953 transitions. Word has length 97 [2019-10-03 02:45:36,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:36,402 INFO L475 AbstractCegarLoop]: Abstraction has 612 states and 953 transitions. [2019-10-03 02:45:36,402 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:45:36,402 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 953 transitions. [2019-10-03 02:45:36,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-10-03 02:45:36,404 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:36,404 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 02:45:36,404 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:36,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:36,404 INFO L82 PathProgramCache]: Analyzing trace with hash 1643629033, now seen corresponding path program 1 times [2019-10-03 02:45:36,405 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:36,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:36,410 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:36,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:36,410 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:36,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:36,563 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 02:45:36,564 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:36,564 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:45:36,564 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:36,565 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:45:36,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:45:36,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:45:36,566 INFO L87 Difference]: Start difference. First operand 612 states and 953 transitions. Second operand 5 states. [2019-10-03 02:45:36,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:36,631 INFO L93 Difference]: Finished difference Result 614 states and 954 transitions. [2019-10-03 02:45:36,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 02:45:36,631 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 98 [2019-10-03 02:45:36,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:36,636 INFO L225 Difference]: With dead ends: 614 [2019-10-03 02:45:36,636 INFO L226 Difference]: Without dead ends: 612 [2019-10-03 02:45:36,637 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 02:45:36,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2019-10-03 02:45:36,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 612. [2019-10-03 02:45:36,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 612 states. [2019-10-03 02:45:36,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 952 transitions. [2019-10-03 02:45:36,658 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 952 transitions. Word has length 98 [2019-10-03 02:45:36,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:36,660 INFO L475 AbstractCegarLoop]: Abstraction has 612 states and 952 transitions. [2019-10-03 02:45:36,660 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:45:36,661 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 952 transitions. [2019-10-03 02:45:36,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2019-10-03 02:45:36,663 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:36,663 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 02:45:36,663 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:36,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:36,663 INFO L82 PathProgramCache]: Analyzing trace with hash -205792939, now seen corresponding path program 1 times [2019-10-03 02:45:36,664 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:36,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:36,667 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:36,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:36,667 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:36,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:36,798 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 02:45:36,798 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:36,799 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:45:36,799 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:36,799 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:45:36,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:45:36,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:45:36,800 INFO L87 Difference]: Start difference. First operand 612 states and 952 transitions. Second operand 5 states. [2019-10-03 02:45:36,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:36,974 INFO L93 Difference]: Finished difference Result 614 states and 953 transitions. [2019-10-03 02:45:36,975 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 02:45:36,975 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 99 [2019-10-03 02:45:36,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:36,982 INFO L225 Difference]: With dead ends: 614 [2019-10-03 02:45:36,982 INFO L226 Difference]: Without dead ends: 612 [2019-10-03 02:45:36,983 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 02:45:36,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2019-10-03 02:45:37,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 612. [2019-10-03 02:45:37,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 612 states. [2019-10-03 02:45:37,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 951 transitions. [2019-10-03 02:45:37,011 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 951 transitions. Word has length 99 [2019-10-03 02:45:37,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:37,011 INFO L475 AbstractCegarLoop]: Abstraction has 612 states and 951 transitions. [2019-10-03 02:45:37,012 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:45:37,012 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 951 transitions. [2019-10-03 02:45:37,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2019-10-03 02:45:37,014 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:37,014 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 02:45:37,015 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:37,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:37,016 INFO L82 PathProgramCache]: Analyzing trace with hash -1150361404, now seen corresponding path program 1 times [2019-10-03 02:45:37,016 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:37,019 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:37,020 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:37,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:37,020 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:37,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:37,138 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 02:45:37,139 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:37,139 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:45:37,139 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:37,139 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:45:37,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:45:37,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:45:37,140 INFO L87 Difference]: Start difference. First operand 612 states and 951 transitions. Second operand 5 states. [2019-10-03 02:45:37,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:37,201 INFO L93 Difference]: Finished difference Result 614 states and 952 transitions. [2019-10-03 02:45:37,201 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 02:45:37,201 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 100 [2019-10-03 02:45:37,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:37,208 INFO L225 Difference]: With dead ends: 614 [2019-10-03 02:45:37,208 INFO L226 Difference]: Without dead ends: 612 [2019-10-03 02:45:37,209 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 02:45:37,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2019-10-03 02:45:37,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 612. [2019-10-03 02:45:37,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 612 states. [2019-10-03 02:45:37,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 950 transitions. [2019-10-03 02:45:37,242 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 950 transitions. Word has length 100 [2019-10-03 02:45:37,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:37,243 INFO L475 AbstractCegarLoop]: Abstraction has 612 states and 950 transitions. [2019-10-03 02:45:37,243 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:45:37,243 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 950 transitions. [2019-10-03 02:45:37,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-10-03 02:45:37,245 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:37,245 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 02:45:37,246 INFO L418 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:37,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:37,246 INFO L82 PathProgramCache]: Analyzing trace with hash 185725072, now seen corresponding path program 1 times [2019-10-03 02:45:37,246 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:37,251 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:37,251 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:37,251 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:37,251 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:37,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:37,501 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 02:45:37,501 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:37,501 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-03 02:45:37,501 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:37,502 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-03 02:45:37,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-03 02:45:37,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:45:37,502 INFO L87 Difference]: Start difference. First operand 612 states and 950 transitions. Second operand 8 states. [2019-10-03 02:45:40,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:40,850 INFO L93 Difference]: Finished difference Result 1657 states and 2571 transitions. [2019-10-03 02:45:40,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-03 02:45:40,851 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 101 [2019-10-03 02:45:40,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:40,865 INFO L225 Difference]: With dead ends: 1657 [2019-10-03 02:45:40,865 INFO L226 Difference]: Without dead ends: 1657 [2019-10-03 02:45:40,866 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-03 02:45:40,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1657 states. [2019-10-03 02:45:40,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1657 to 1645. [2019-10-03 02:45:40,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1645 states. [2019-10-03 02:45:40,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1645 states to 1645 states and 2558 transitions. [2019-10-03 02:45:40,955 INFO L78 Accepts]: Start accepts. Automaton has 1645 states and 2558 transitions. Word has length 101 [2019-10-03 02:45:40,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:40,956 INFO L475 AbstractCegarLoop]: Abstraction has 1645 states and 2558 transitions. [2019-10-03 02:45:40,956 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-03 02:45:40,956 INFO L276 IsEmpty]: Start isEmpty. Operand 1645 states and 2558 transitions. [2019-10-03 02:45:40,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-10-03 02:45:40,957 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:40,958 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 02:45:40,958 INFO L418 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:40,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:40,959 INFO L82 PathProgramCache]: Analyzing trace with hash 962074000, now seen corresponding path program 1 times [2019-10-03 02:45:40,959 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:40,962 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:40,962 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:40,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:40,963 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:41,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:41,341 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 02:45:41,341 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:45:41,342 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:45:41,343 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 102 with the following transitions: [2019-10-03 02:45:41,346 INFO L207 CegarAbsIntRunner]: [55], [56], [57], [58], [315], [319], [322], [393], [458], [460], [462], [538], [541], [544], [547], [602], [603], [604], [609], [642], [643], [678], [680], [727], [763], [799], [835], [871], [874], [877], [910], [911], [912], [963], [968], [973], [978], [983], [986], [990], [1177], [1180], [1202], [1342], [1343], [1429], [1432], [1434], [1437], [1463], [1465], [1467], [1470], [1483], [1497], [1511], [1525], [1539], [1613], [2132], [2543], [2544], [2545], [2546], [2547], [2548], [2549], [2550], [2551], [2597], [2598], [2599], [2600], [2601], [2602], [2603], [2604], [2605], [2633], [2634], [2635], [2636], [2641], [2659], [2660], [2669], [2670], [2671], [2697], [2721], [2722], [2723], [2729], [2730], [2731], [2732], [2779], [2780], [2781] [2019-10-03 02:45:41,434 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 02:45:41,435 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 02:45:41,582 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 02:45:41,584 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 188 root evaluator evaluations with a maximum evaluation depth of 0. Performed 188 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 262 variables. [2019-10-03 02:45:41,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:41,590 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 02:45:41,671 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-03 02:45:41,671 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 02:45:41,679 INFO L420 sIntCurrentIteration]: We unified 100 AI predicates to 100 [2019-10-03 02:45:41,679 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 02:45:41,681 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:45:41,681 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 11 [2019-10-03 02:45:41,681 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:41,681 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:45:41,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:45:41,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:45:41,682 INFO L87 Difference]: Start difference. First operand 1645 states and 2558 transitions. Second operand 2 states. [2019-10-03 02:45:41,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:41,683 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-10-03 02:45:41,683 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:45:41,683 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 101 [2019-10-03 02:45:41,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:41,683 INFO L225 Difference]: With dead ends: 2 [2019-10-03 02:45:41,683 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:45:41,684 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 02:45:41,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:45:41,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:45:41,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:45:41,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:45:41,685 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 101 [2019-10-03 02:45:41,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:41,685 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:45:41,685 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:45:41,685 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:45:41,685 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:45:41,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:45:41 BoogieIcfgContainer [2019-10-03 02:45:41,692 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:45:41,694 INFO L168 Benchmark]: Toolchain (without parser) took 12887.28 ms. Allocated memory was 134.7 MB in the beginning and 471.3 MB in the end (delta: 336.6 MB). Free memory was 87.3 MB in the beginning and 320.0 MB in the end (delta: -232.8 MB). Peak memory consumption was 103.8 MB. Max. memory is 7.1 GB. [2019-10-03 02:45:41,696 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 134.7 MB. Free memory was 108.9 MB in the beginning and 108.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 02:45:41,698 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1082.41 ms. Allocated memory was 134.7 MB in the beginning and 200.8 MB in the end (delta: 66.1 MB). Free memory was 87.0 MB in the beginning and 136.2 MB in the end (delta: -49.2 MB). Peak memory consumption was 34.7 MB. Max. memory is 7.1 GB. [2019-10-03 02:45:41,699 INFO L168 Benchmark]: Boogie Preprocessor took 175.02 ms. Allocated memory is still 200.8 MB. Free memory was 136.2 MB in the beginning and 126.4 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2019-10-03 02:45:41,704 INFO L168 Benchmark]: RCFGBuilder took 2790.63 ms. Allocated memory was 200.8 MB in the beginning and 261.1 MB in the end (delta: 60.3 MB). Free memory was 126.4 MB in the beginning and 132.4 MB in the end (delta: -6.0 MB). Peak memory consumption was 88.8 MB. Max. memory is 7.1 GB. [2019-10-03 02:45:41,705 INFO L168 Benchmark]: TraceAbstraction took 8831.08 ms. Allocated memory was 261.1 MB in the beginning and 471.3 MB in the end (delta: 210.2 MB). Free memory was 132.4 MB in the beginning and 320.0 MB in the end (delta: -187.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2019-10-03 02:45:41,719 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 134.7 MB. Free memory was 108.9 MB in the beginning and 108.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1082.41 ms. Allocated memory was 134.7 MB in the beginning and 200.8 MB in the end (delta: 66.1 MB). Free memory was 87.0 MB in the beginning and 136.2 MB in the end (delta: -49.2 MB). Peak memory consumption was 34.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 175.02 ms. Allocated memory is still 200.8 MB. Free memory was 136.2 MB in the beginning and 126.4 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2790.63 ms. Allocated memory was 200.8 MB in the beginning and 261.1 MB in the end (delta: 60.3 MB). Free memory was 126.4 MB in the beginning and 132.4 MB in the end (delta: -6.0 MB). Peak memory consumption was 88.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 8831.08 ms. Allocated memory was 261.1 MB in the beginning and 471.3 MB in the end (delta: 210.2 MB). Free memory was 132.4 MB in the beginning and 320.0 MB in the end (delta: -187.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2813]: 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 78 procedures, 942 locations, 1 error locations. SAFE Result, 8.7s OverallTime, 12 OverallIterations, 2 TraceHistogramMax, 4.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 11415 SDtfs, 2179 SDslu, 42610 SDs, 0 SdLazy, 3050 SolverSat, 105 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 184 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1645occurred in iteration=11, 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, 2.32 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 14 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 1164 NumberOfCodeBlocks, 1164 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1152 ConstructedInterpolants, 0 QuantifiedInterpolants, 144000 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...