java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product40.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 15:20:54,697 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 15:20:54,700 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 15:20:54,719 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 15:20:54,720 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 15:20:54,722 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 15:20:54,724 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 15:20:54,733 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 15:20:54,738 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 15:20:54,742 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 15:20:54,743 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 15:20:54,744 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 15:20:54,744 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 15:20:54,746 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 15:20:54,748 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 15:20:54,749 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 15:20:54,750 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 15:20:54,751 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 15:20:54,752 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 15:20:54,754 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 15:20:54,756 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 15:20:54,757 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 15:20:54,758 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 15:20:54,758 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 15:20:54,760 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 15:20:54,761 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 15:20:54,761 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 15:20:54,762 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 15:20:54,762 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 15:20:54,763 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 15:20:54,763 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 15:20:54,764 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 15:20:54,765 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 15:20:54,766 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 15:20:54,766 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 15:20:54,767 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 15:20:54,767 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 15:20:54,768 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 15:20:54,768 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 15:20:54,769 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 15:20:54,770 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 15:20:54,770 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-07 15:20:54,791 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 15:20:54,791 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 15:20:54,793 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 15:20:54,793 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 15:20:54,793 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 15:20:54,793 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 15:20:54,794 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 15:20:54,794 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 15:20:54,794 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 15:20:54,794 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 15:20:54,794 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 15:20:54,794 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 15:20:54,795 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 15:20:54,795 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 15:20:54,795 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 15:20:54,795 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 15:20:54,795 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 15:20:54,796 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 15:20:54,796 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 15:20:54,796 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 15:20:54,796 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 15:20:54,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:20:54,797 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 15:20:54,797 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 15:20:54,797 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 15:20:54,797 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 15:20:54,798 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 15:20:54,798 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 15:20:54,798 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 15:20:55,081 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 15:20:55,100 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 15:20:55,105 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 15:20:55,106 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 15:20:55,107 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 15:20:55,107 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product40.cil.c [2019-10-07 15:20:55,176 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35849613f/43535fd690ab4daf94a8538917ccd392/FLAG11a5007bb [2019-10-07 15:20:55,709 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 15:20:55,709 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product40.cil.c [2019-10-07 15:20:55,729 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35849613f/43535fd690ab4daf94a8538917ccd392/FLAG11a5007bb [2019-10-07 15:20:56,012 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35849613f/43535fd690ab4daf94a8538917ccd392 [2019-10-07 15:20:56,020 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 15:20:56,021 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 15:20:56,022 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 15:20:56,022 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 15:20:56,025 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 15:20:56,026 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:20:56" (1/1) ... [2019-10-07 15:20:56,029 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7384ae86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:20:56, skipping insertion in model container [2019-10-07 15:20:56,030 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:20:56" (1/1) ... [2019-10-07 15:20:56,036 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 15:20:56,098 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 15:20:56,601 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:20:56,617 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 15:20:56,760 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:20:56,794 INFO L192 MainTranslator]: Completed translation [2019-10-07 15:20:56,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:20:56 WrapperNode [2019-10-07 15:20:56,795 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 15:20:56,796 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 15:20:56,796 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 15:20:56,796 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 15:20:56,807 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:20:56" (1/1) ... [2019-10-07 15:20:56,807 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:20:56" (1/1) ... [2019-10-07 15:20:56,827 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:20:56" (1/1) ... [2019-10-07 15:20:56,827 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:20:56" (1/1) ... [2019-10-07 15:20:56,856 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:20:56" (1/1) ... [2019-10-07 15:20:56,868 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:20:56" (1/1) ... [2019-10-07 15:20:56,873 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:20:56" (1/1) ... [2019-10-07 15:20:56,882 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 15:20:56,883 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 15:20:56,883 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 15:20:56,883 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 15:20:56,884 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:20:56" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:20:56,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 15:20:56,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 15:20:56,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 15:20:56,966 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-07 15:20:56,966 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-07 15:20:56,967 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-07 15:20:56,968 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-07 15:20:56,968 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-07 15:20:56,968 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-07 15:20:56,969 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-07 15:20:56,969 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-07 15:20:56,970 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-07 15:20:56,970 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-07 15:20:56,970 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-07 15:20:56,970 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-07 15:20:56,970 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 15:20:56,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 15:20:56,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 15:20:56,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 15:20:56,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 15:20:56,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 15:20:56,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 15:20:56,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-07 15:20:56,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-07 15:20:56,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-07 15:20:56,974 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-07 15:20:56,975 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-07 15:20:56,975 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 15:20:56,975 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-07 15:20:56,975 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 15:20:56,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 15:20:56,976 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 15:20:56,976 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 15:20:56,976 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 15:20:56,976 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 15:20:56,976 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-07 15:20:56,976 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-07 15:20:56,977 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-07 15:20:56,977 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-07 15:20:56,977 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-07 15:20:56,978 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-07 15:20:56,978 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-07 15:20:56,978 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 15:20:56,978 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 15:20:56,978 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 15:20:56,979 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-07 15:20:56,979 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-07 15:20:56,979 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-07 15:20:56,979 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-07 15:20:56,979 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-07 15:20:56,979 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-07 15:20:56,980 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-07 15:20:56,980 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-07 15:20:56,980 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-07 15:20:56,980 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-07 15:20:56,980 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-07 15:20:56,980 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-07 15:20:56,981 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-07 15:20:56,981 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-07 15:20:56,982 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-07 15:20:56,982 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-07 15:20:56,982 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-07 15:20:56,982 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-07 15:20:56,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 15:20:56,982 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-07 15:20:56,983 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-07 15:20:56,983 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-07 15:20:56,983 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 15:20:56,983 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 15:20:56,983 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 15:20:56,983 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 15:20:56,983 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 15:20:56,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 15:20:56,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 15:20:56,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 15:20:56,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 15:20:56,987 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 15:20:56,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 15:20:56,987 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 15:20:56,987 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 15:20:56,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 15:20:56,989 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 15:20:56,989 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 15:20:56,989 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 15:20:56,989 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 15:20:56,989 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-07 15:20:56,989 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-07 15:20:56,990 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-07 15:20:56,990 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 15:20:56,991 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-07 15:20:56,991 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 15:20:56,991 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 15:20:56,991 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 15:20:56,991 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 15:20:56,991 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 15:20:56,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 15:20:56,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 15:20:56,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 15:20:58,494 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 15:20:58,495 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-07 15:20:58,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:20:58 BoogieIcfgContainer [2019-10-07 15:20:58,497 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 15:20:58,499 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 15:20:58,499 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 15:20:58,502 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 15:20:58,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:20:56" (1/3) ... [2019-10-07 15:20:58,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5871962a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:20:58, skipping insertion in model container [2019-10-07 15:20:58,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:20:56" (2/3) ... [2019-10-07 15:20:58,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5871962a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:20:58, skipping insertion in model container [2019-10-07 15:20:58,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:20:58" (3/3) ... [2019-10-07 15:20:58,507 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product40.cil.c [2019-10-07 15:20:58,516 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 15:20:58,526 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 15:20:58,539 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 15:20:58,572 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 15:20:58,572 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 15:20:58,572 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 15:20:58,572 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 15:20:58,572 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 15:20:58,572 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 15:20:58,573 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 15:20:58,573 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 15:20:58,601 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states. [2019-10-07 15:20:58,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-07 15:20:58,611 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:20:58,612 INFO L385 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:20:58,614 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:20:58,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:20:58,621 INFO L82 PathProgramCache]: Analyzing trace with hash 125856926, now seen corresponding path program 1 times [2019-10-07 15:20:58,630 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:20:58,630 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:20:58,630 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:20:58,631 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:20:58,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:20:58,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:20:58,988 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 15:20:58,988 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:20:58,989 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:20:58,989 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 15:20:58,993 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 15:20:59,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 15:20:59,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:20:59,010 INFO L87 Difference]: Start difference. First operand 157 states. Second operand 2 states. [2019-10-07 15:20:59,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:20:59,082 INFO L93 Difference]: Finished difference Result 244 states and 297 transitions. [2019-10-07 15:20:59,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 15:20:59,083 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2019-10-07 15:20:59,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:20:59,098 INFO L225 Difference]: With dead ends: 244 [2019-10-07 15:20:59,098 INFO L226 Difference]: Without dead ends: 124 [2019-10-07 15:20:59,103 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:20:59,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2019-10-07 15:20:59,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2019-10-07 15:20:59,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2019-10-07 15:20:59,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 144 transitions. [2019-10-07 15:20:59,173 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 144 transitions. Word has length 52 [2019-10-07 15:20:59,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:20:59,174 INFO L462 AbstractCegarLoop]: Abstraction has 124 states and 144 transitions. [2019-10-07 15:20:59,174 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 15:20:59,174 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 144 transitions. [2019-10-07 15:20:59,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-10-07 15:20:59,178 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:20:59,178 INFO L385 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:20:59,178 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:20:59,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:20:59,179 INFO L82 PathProgramCache]: Analyzing trace with hash -1363929903, now seen corresponding path program 1 times [2019-10-07 15:20:59,179 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:20:59,179 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:20:59,180 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:20:59,180 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:20:59,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:20:59,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:20:59,305 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 15:20:59,305 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:20:59,306 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:20:59,306 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:20:59,309 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:20:59,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:20:59,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:20:59,310 INFO L87 Difference]: Start difference. First operand 124 states and 144 transitions. Second operand 3 states. [2019-10-07 15:20:59,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:20:59,354 INFO L93 Difference]: Finished difference Result 192 states and 222 transitions. [2019-10-07 15:20:59,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:20:59,355 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2019-10-07 15:20:59,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:20:59,360 INFO L225 Difference]: With dead ends: 192 [2019-10-07 15:20:59,361 INFO L226 Difference]: Without dead ends: 116 [2019-10-07 15:20:59,368 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:20:59,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2019-10-07 15:20:59,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2019-10-07 15:20:59,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2019-10-07 15:20:59,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 133 transitions. [2019-10-07 15:20:59,394 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 133 transitions. Word has length 53 [2019-10-07 15:20:59,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:20:59,395 INFO L462 AbstractCegarLoop]: Abstraction has 116 states and 133 transitions. [2019-10-07 15:20:59,395 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:20:59,395 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 133 transitions. [2019-10-07 15:20:59,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-10-07 15:20:59,402 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:20:59,403 INFO L385 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:20:59,403 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:20:59,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:20:59,405 INFO L82 PathProgramCache]: Analyzing trace with hash 1968233806, now seen corresponding path program 1 times [2019-10-07 15:20:59,406 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:20:59,406 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:20:59,406 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:20:59,406 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:20:59,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:20:59,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:20:59,611 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 15:20:59,612 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:20:59,612 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:20:59,612 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 15:20:59,613 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 15:20:59,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 15:20:59,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-07 15:20:59,613 INFO L87 Difference]: Start difference. First operand 116 states and 133 transitions. Second operand 7 states. [2019-10-07 15:21:00,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:21:00,222 INFO L93 Difference]: Finished difference Result 348 states and 416 transitions. [2019-10-07 15:21:00,223 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 15:21:00,223 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2019-10-07 15:21:00,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:21:00,227 INFO L225 Difference]: With dead ends: 348 [2019-10-07 15:21:00,227 INFO L226 Difference]: Without dead ends: 257 [2019-10-07 15:21:00,228 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-07 15:21:00,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2019-10-07 15:21:00,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 245. [2019-10-07 15:21:00,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2019-10-07 15:21:00,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 292 transitions. [2019-10-07 15:21:00,291 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 292 transitions. Word has length 57 [2019-10-07 15:21:00,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:21:00,293 INFO L462 AbstractCegarLoop]: Abstraction has 245 states and 292 transitions. [2019-10-07 15:21:00,293 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 15:21:00,293 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 292 transitions. [2019-10-07 15:21:00,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-10-07 15:21:00,300 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:21:00,300 INFO L385 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:21:00,300 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:21:00,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:21:00,301 INFO L82 PathProgramCache]: Analyzing trace with hash -2070607786, now seen corresponding path program 1 times [2019-10-07 15:21:00,301 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:21:00,301 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:21:00,301 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:21:00,301 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:21:00,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:21:00,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:21:00,428 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-07 15:21:00,428 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:21:00,429 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:21:00,429 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 15:21:00,430 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 15:21:00,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 15:21:00,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 15:21:00,431 INFO L87 Difference]: Start difference. First operand 245 states and 292 transitions. Second operand 7 states. [2019-10-07 15:21:01,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:21:01,102 INFO L93 Difference]: Finished difference Result 634 states and 825 transitions. [2019-10-07 15:21:01,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-07 15:21:01,103 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 61 [2019-10-07 15:21:01,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:21:01,107 INFO L225 Difference]: With dead ends: 634 [2019-10-07 15:21:01,108 INFO L226 Difference]: Without dead ends: 414 [2019-10-07 15:21:01,109 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-07 15:21:01,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2019-10-07 15:21:01,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 363. [2019-10-07 15:21:01,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2019-10-07 15:21:01,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 432 transitions. [2019-10-07 15:21:01,148 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 432 transitions. Word has length 61 [2019-10-07 15:21:01,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:21:01,148 INFO L462 AbstractCegarLoop]: Abstraction has 363 states and 432 transitions. [2019-10-07 15:21:01,148 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 15:21:01,149 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 432 transitions. [2019-10-07 15:21:01,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-10-07 15:21:01,151 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:21:01,151 INFO L385 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:21:01,151 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:21:01,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:21:01,152 INFO L82 PathProgramCache]: Analyzing trace with hash -1882400771, now seen corresponding path program 1 times [2019-10-07 15:21:01,152 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:21:01,152 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:21:01,152 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:21:01,152 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:21:01,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:21:01,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:21:01,461 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 15:21:01,461 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:21:01,461 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:21:01,461 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-07 15:21:01,463 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-07 15:21:01,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-07 15:21:01,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2019-10-07 15:21:01,465 INFO L87 Difference]: Start difference. First operand 363 states and 432 transitions. Second operand 12 states. [2019-10-07 15:21:02,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:21:02,488 INFO L93 Difference]: Finished difference Result 1110 states and 1343 transitions. [2019-10-07 15:21:02,489 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-07 15:21:02,489 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 79 [2019-10-07 15:21:02,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:21:02,495 INFO L225 Difference]: With dead ends: 1110 [2019-10-07 15:21:02,495 INFO L226 Difference]: Without dead ends: 772 [2019-10-07 15:21:02,497 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2019-10-07 15:21:02,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 772 states. [2019-10-07 15:21:02,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 772 to 750. [2019-10-07 15:21:02,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 750 states. [2019-10-07 15:21:02,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 896 transitions. [2019-10-07 15:21:02,559 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 896 transitions. Word has length 79 [2019-10-07 15:21:02,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:21:02,560 INFO L462 AbstractCegarLoop]: Abstraction has 750 states and 896 transitions. [2019-10-07 15:21:02,560 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-07 15:21:02,561 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 896 transitions. [2019-10-07 15:21:02,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-10-07 15:21:02,566 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:21:02,566 INFO L385 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:21:02,566 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:21:02,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:21:02,567 INFO L82 PathProgramCache]: Analyzing trace with hash 1454386472, now seen corresponding path program 1 times [2019-10-07 15:21:02,567 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:21:02,567 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:21:02,567 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:21:02,567 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:21:02,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:21:02,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:21:02,740 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 15:21:02,740 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:21:02,740 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:21:02,741 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-07 15:21:02,741 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 15:21:02,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 15:21:02,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-07 15:21:02,742 INFO L87 Difference]: Start difference. First operand 750 states and 896 transitions. Second operand 9 states. [2019-10-07 15:21:03,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:21:03,740 INFO L93 Difference]: Finished difference Result 2384 states and 2935 transitions. [2019-10-07 15:21:03,740 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-07 15:21:03,740 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 82 [2019-10-07 15:21:03,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:21:03,752 INFO L225 Difference]: With dead ends: 2384 [2019-10-07 15:21:03,752 INFO L226 Difference]: Without dead ends: 1821 [2019-10-07 15:21:03,755 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2019-10-07 15:21:03,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1821 states. [2019-10-07 15:21:03,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1821 to 1541. [2019-10-07 15:21:03,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1541 states. [2019-10-07 15:21:03,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1541 states to 1541 states and 1857 transitions. [2019-10-07 15:21:03,855 INFO L78 Accepts]: Start accepts. Automaton has 1541 states and 1857 transitions. Word has length 82 [2019-10-07 15:21:03,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:21:03,855 INFO L462 AbstractCegarLoop]: Abstraction has 1541 states and 1857 transitions. [2019-10-07 15:21:03,856 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 15:21:03,856 INFO L276 IsEmpty]: Start isEmpty. Operand 1541 states and 1857 transitions. [2019-10-07 15:21:03,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-10-07 15:21:03,859 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:21:03,859 INFO L385 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:21:03,860 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:21:03,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:21:03,860 INFO L82 PathProgramCache]: Analyzing trace with hash 1008011137, now seen corresponding path program 1 times [2019-10-07 15:21:03,860 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:21:03,860 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:21:03,861 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:21:03,861 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:21:03,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:21:03,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:21:03,991 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 21 proven. 5 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-07 15:21:03,992 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:21:03,992 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:21:03,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:21:04,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:21:04,238 INFO L256 TraceCheckSpWp]: Trace formula consists of 912 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-07 15:21:04,254 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:21:04,404 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 36 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:21:04,404 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:21:04,809 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 20 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-10-07 15:21:04,810 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 15:21:04,839 INFO L162 IcfgInterpreter]: Started Sifa with 88 locations of interest [2019-10-07 15:21:04,840 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 15:21:04,847 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 15:21:04,855 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 15:21:04,856 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 15:21:13,833 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2019-10-07 15:21:15,329 WARN L191 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-07 15:21:15,475 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-07 15:21:15,620 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-07 15:21:15,745 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-07 15:21:16,047 WARN L191 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:21:16,276 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:21:16,465 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:21:16,684 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:21:17,038 WARN L191 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 546 DAG size of output: 544 [2019-10-07 15:21:17,245 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:21:17,390 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:21:17,524 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:21:17,636 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:21:17,858 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:21:17,874 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 187 for LOIs [2019-10-07 15:21:18,151 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 513 [2019-10-07 15:21:18,153 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 546 for LOIs [2019-10-07 15:21:18,269 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:21:18,385 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:21:18,563 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:18,904 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:19,054 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:21:19,171 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:21:19,300 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:19,512 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 546 [2019-10-07 15:21:19,627 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:21:19,807 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:19,917 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:21:20,142 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:20,367 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:21:20,492 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:20,594 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:21:20,829 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:21,042 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:21:21,188 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:21,392 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:21:21,515 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:21,850 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:21,951 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:21:22,175 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:22,282 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:21:22,388 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:21:22,517 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:22,632 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:21:22,763 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:21:22,887 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:23,024 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:23,140 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:23,288 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:23,540 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:21:23,669 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:23,801 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:23,918 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:24,032 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:24,156 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:24,352 WARN L191 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:24,473 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:24,621 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:24,876 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-07 15:21:24,997 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:25,129 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:25,342 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-07 15:21:25,460 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:25,592 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:25,719 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:21:25,836 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:21:25,965 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:26,088 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:26,205 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:26,344 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 15:21:26,483 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:26,601 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:26,741 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 15:21:26,978 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 568 [2019-10-07 15:21:27,095 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:27,243 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 15:21:27,359 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:27,483 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:27,614 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 15:21:27,861 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:21:27,985 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:28,115 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:28,330 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:21:28,445 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:28,579 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:28,693 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:28,808 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:28,933 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:29,188 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-07 15:21:29,306 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:29,444 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:29,675 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-07 15:21:29,792 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:29,929 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:30,048 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:30,167 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:30,300 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:30,518 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-07 15:21:30,635 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:21:30,765 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:30,974 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 568 [2019-10-07 15:21:31,095 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:31,228 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 15:21:31,460 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:21:31,578 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:31,704 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:31,914 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:21:32,029 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:32,156 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:32,270 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:32,385 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:32,518 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:32,742 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:21:32,856 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:32,984 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:33,190 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:21:33,310 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:33,448 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:33,562 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:33,678 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:33,819 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:34,038 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-07 15:21:34,155 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:21:34,286 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:34,492 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-07 15:21:34,610 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:21:34,739 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:34,945 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 568 DAG size of output: 566 [2019-10-07 15:21:35,062 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:21:35,188 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:35,398 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-07 15:21:35,514 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:21:35,644 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:35,854 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 568 [2019-10-07 15:21:35,972 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:36,102 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 15:21:36,622 WARN L191 SmtUtils]: Spent 505.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 568 [2019-10-07 15:21:36,844 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:36,977 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 15:21:37,187 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 568 [2019-10-07 15:21:37,306 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:37,435 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 15:21:37,660 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:21:37,790 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:37,921 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:38,189 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:21:38,304 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:38,431 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:38,545 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:38,660 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:38,784 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:38,995 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-07 15:21:39,111 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:21:39,253 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:39,453 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-07 15:21:39,570 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:21:39,702 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:39,919 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 568 DAG size of output: 566 [2019-10-07 15:21:40,036 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:21:40,166 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:40,376 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-07 15:21:40,494 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:21:40,625 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:40,834 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 568 [2019-10-07 15:21:40,954 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:41,090 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 15:21:41,310 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:21:41,429 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:41,557 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:41,772 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:21:41,890 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:42,019 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:42,234 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:21:42,350 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:42,477 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:42,682 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:21:42,803 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:42,929 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:43,051 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:43,167 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:43,291 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:43,514 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-07 15:21:43,630 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:43,757 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:44,008 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-07 15:21:44,128 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:44,256 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:44,481 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:21:44,595 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:44,722 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:44,930 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:21:45,045 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:45,171 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:45,285 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:45,403 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:45,530 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:45,753 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-07 15:21:45,870 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:45,999 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:46,215 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-07 15:21:46,332 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:46,461 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:46,578 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:46,695 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:46,821 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:47,036 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-07 15:21:47,155 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:21:47,289 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:47,293 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 546 for LOIs [2019-10-07 15:21:47,617 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:47,737 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-07 15:21:47,838 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-07 15:21:47,973 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:48,211 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 548 [2019-10-07 15:21:48,314 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-07 15:21:48,444 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:48,545 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-07 15:21:48,649 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-07 15:21:48,772 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:48,778 INFO L199 IcfgInterpreter]: Interpreting procedure setup with input of size 544 for LOIs [2019-10-07 15:21:48,881 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:21:48,986 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:21:49,100 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:21:49,202 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:21:49,306 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:21:49,418 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:21:49,419 INFO L199 IcfgInterpreter]: Interpreting procedure select_features with input of size 544 for LOIs [2019-10-07 15:21:49,520 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:21:49,622 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:21:49,733 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:21:49,845 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:21:49,948 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:21:50,062 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:21:50,063 INFO L199 IcfgInterpreter]: Interpreting procedure test with input of size 550 for LOIs [2019-10-07 15:21:50,170 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-07 15:21:50,273 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-07 15:21:50,398 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:50,509 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:21:50,615 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:21:50,746 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:50,852 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:21:50,957 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:21:51,087 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:51,261 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:21:51,547 WARN L191 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:21:52,002 WARN L191 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 580 DAG size of output: 580 [2019-10-07 15:21:52,414 WARN L191 SmtUtils]: Spent 408.00 ms on a formula simplification that was a NOOP. DAG size: 583 [2019-10-07 15:21:52,694 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:21:52,696 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarizeInternal(FixpointLoopSummarizer.java:118) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarize(FixpointLoopSummarizer.java:94) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretLoop(DagInterpreter.java:178) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:169) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 15:21:52,702 INFO L168 Benchmark]: Toolchain (without parser) took 56681.37 ms. Allocated memory was 137.9 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 101.6 MB in the beginning and 309.7 MB in the end (delta: -208.1 MB). Peak memory consumption was 898.1 MB. Max. memory is 7.1 GB. [2019-10-07 15:21:52,703 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 137.9 MB. Free memory is still 120.7 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-07 15:21:52,703 INFO L168 Benchmark]: CACSL2BoogieTranslator took 773.34 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 101.2 MB in the beginning and 169.2 MB in the end (delta: -68.0 MB). Peak memory consumption was 27.3 MB. Max. memory is 7.1 GB. [2019-10-07 15:21:52,703 INFO L168 Benchmark]: Boogie Preprocessor took 86.69 ms. Allocated memory is still 202.4 MB. Free memory was 169.2 MB in the beginning and 165.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2019-10-07 15:21:52,704 INFO L168 Benchmark]: RCFGBuilder took 1614.11 ms. Allocated memory was 202.4 MB in the beginning and 234.4 MB in the end (delta: 32.0 MB). Free memory was 165.2 MB in the beginning and 147.4 MB in the end (delta: 17.8 MB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. [2019-10-07 15:21:52,704 INFO L168 Benchmark]: TraceAbstraction took 54202.28 ms. Allocated memory was 234.4 MB in the beginning and 1.2 GB in the end (delta: 1.0 GB). Free memory was 147.4 MB in the beginning and 309.7 MB in the end (delta: -162.3 MB). Peak memory consumption was 847.4 MB. Max. memory is 7.1 GB. [2019-10-07 15:21:52,706 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 137.9 MB. Free memory is still 120.7 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 773.34 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 101.2 MB in the beginning and 169.2 MB in the end (delta: -68.0 MB). Peak memory consumption was 27.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 86.69 ms. Allocated memory is still 202.4 MB. Free memory was 169.2 MB in the beginning and 165.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1614.11 ms. Allocated memory was 202.4 MB in the beginning and 234.4 MB in the end (delta: 32.0 MB). Free memory was 165.2 MB in the beginning and 147.4 MB in the end (delta: 17.8 MB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 54202.28 ms. Allocated memory was 234.4 MB in the beginning and 1.2 GB in the end (delta: 1.0 GB). Free memory was 147.4 MB in the beginning and 309.7 MB in the end (delta: -162.3 MB). Peak memory consumption was 847.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...