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_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:22:43,717 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:22:43,720 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:22:43,733 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:22:43,733 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:22:43,735 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:22:43,736 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:22:43,738 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:22:43,739 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:22:43,740 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:22:43,741 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:22:43,742 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:22:43,743 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:22:43,744 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:22:43,745 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:22:43,746 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:22:43,747 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:22:43,747 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:22:43,749 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:22:43,751 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:22:43,752 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:22:43,753 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:22:43,754 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:22:43,755 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:22:43,757 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:22:43,757 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:22:43,757 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:22:43,758 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:22:43,759 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:22:43,760 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:22:43,760 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:22:43,761 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:22:43,761 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:22:43,762 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:22:43,763 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:22:43,763 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:22:43,764 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:22:43,764 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:22:43,765 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:22:43,766 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:22:43,766 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:22:43,767 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 [2019-10-15 03:22:43,782 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:22:43,782 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:22:43,783 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:22:43,784 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:22:43,784 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:22:43,784 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:22:43,784 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:22:43,785 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:22:43,785 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:22:43,785 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:22:43,785 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:22:43,785 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:22:43,786 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:22:43,786 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:22:43,786 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:22:43,786 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:22:43,786 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:22:43,787 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:22:43,787 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:22:43,787 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:22:43,787 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:22:43,788 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:22:43,788 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:22:43,788 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:22:43,788 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:22:43,788 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:22:43,789 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:22:43,789 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:22:43,789 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 [2019-10-15 03:22:44,131 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:22:44,145 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:22:44,153 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:22:44,154 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:22:44,155 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:22:44,155 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product33.cil.c [2019-10-15 03:22:44,232 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22d6788cc/23383a34e6c6406fa5f1c203a8821927/FLAGfe81222ac [2019-10-15 03:22:44,756 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:22:44,757 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product33.cil.c [2019-10-15 03:22:44,769 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22d6788cc/23383a34e6c6406fa5f1c203a8821927/FLAGfe81222ac [2019-10-15 03:22:45,097 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22d6788cc/23383a34e6c6406fa5f1c203a8821927 [2019-10-15 03:22:45,108 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:22:45,110 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:22:45,111 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:22:45,111 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:22:45,114 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:22:45,115 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:22:45" (1/1) ... [2019-10-15 03:22:45,118 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d974c45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:45, skipping insertion in model container [2019-10-15 03:22:45,119 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:22:45" (1/1) ... [2019-10-15 03:22:45,127 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:22:45,188 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:22:45,634 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:22:45,649 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:22:45,788 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:22:45,844 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:22:45,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:45 WrapperNode [2019-10-15 03:22:45,845 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:22:45,846 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:22:45,846 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:22:45,846 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:22:45,857 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:45" (1/1) ... [2019-10-15 03:22:45,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:45" (1/1) ... [2019-10-15 03:22:45,877 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:45" (1/1) ... [2019-10-15 03:22:45,878 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:45" (1/1) ... [2019-10-15 03:22:45,907 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:45" (1/1) ... [2019-10-15 03:22:45,917 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:45" (1/1) ... [2019-10-15 03:22:45,927 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:45" (1/1) ... [2019-10-15 03:22:45,936 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:22:45,936 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:22:45,936 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:22:45,937 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:22:45,937 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:45" (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 [2019-10-15 03:22:46,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:22:46,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:22:46,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:22:46,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:22:46,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:22:46,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:22:46,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:22:46,008 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:22:46,008 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:22:46,008 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:22:46,008 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-15 03:22:46,008 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-15 03:22:46,009 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-15 03:22:46,009 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-15 03:22:46,009 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-15 03:22:46,009 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-15 03:22:46,009 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-15 03:22:46,010 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-15 03:22:46,010 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-15 03:22:46,010 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:22:46,010 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:22:46,010 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:22:46,011 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:22:46,011 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-15 03:22:46,011 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-15 03:22:46,012 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:22:46,012 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-15 03:22:46,012 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:22:46,012 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:22:46,012 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-15 03:22:46,012 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-15 03:22:46,012 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-15 03:22:46,013 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-15 03:22:46,013 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-15 03:22:46,013 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-15 03:22:46,013 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-15 03:22:46,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-15 03:22:46,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-15 03:22:46,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-15 03:22:46,014 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:22:46,014 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:22:46,014 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:22:46,014 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:22:46,014 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:22:46,014 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:22:46,015 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:22:46,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:22:46,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:22:46,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:22:46,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:22:46,015 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:22:46,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:22:46,016 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:22:46,016 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:22:46,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:22:46,016 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:22:46,016 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:22:46,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:22:46,017 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:22:46,017 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-15 03:22:46,017 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-15 03:22:46,017 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-15 03:22:46,017 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-15 03:22:46,017 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:22:46,018 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-15 03:22:46,018 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-15 03:22:46,018 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-15 03:22:46,018 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-15 03:22:46,018 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-15 03:22:46,018 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-15 03:22:46,019 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-15 03:22:46,019 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-15 03:22:46,019 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-15 03:22:46,019 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-15 03:22:46,019 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-15 03:22:46,019 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-15 03:22:46,019 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-15 03:22:46,020 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-15 03:22:46,020 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:22:46,020 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:22:46,020 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:22:46,020 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:22:46,020 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-15 03:22:46,021 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:22:46,021 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-15 03:22:46,021 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-15 03:22:46,021 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:22:46,021 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:22:46,021 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-15 03:22:46,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:22:46,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:22:46,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:22:47,659 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:22:47,660 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-15 03:22:47,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:22:47 BoogieIcfgContainer [2019-10-15 03:22:47,663 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:22:47,665 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:22:47,665 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:22:47,671 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:22:47,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:22:45" (1/3) ... [2019-10-15 03:22:47,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24802779 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:22:47, skipping insertion in model container [2019-10-15 03:22:47,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:45" (2/3) ... [2019-10-15 03:22:47,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24802779 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:22:47, skipping insertion in model container [2019-10-15 03:22:47,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:22:47" (3/3) ... [2019-10-15 03:22:47,677 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product33.cil.c [2019-10-15 03:22:47,689 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:22:47,703 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:22:47,719 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:22:47,758 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:22:47,758 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:22:47,758 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:22:47,758 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:22:47,758 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:22:47,759 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:22:47,759 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:22:47,759 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:22:47,795 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states. [2019-10-15 03:22:47,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-15 03:22:47,810 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:22:47,811 INFO L380 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] [2019-10-15 03:22:47,815 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:22:47,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:22:47,823 INFO L82 PathProgramCache]: Analyzing trace with hash 2056875222, now seen corresponding path program 1 times [2019-10-15 03:22:47,839 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:22:47,840 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678018361] [2019-10-15 03:22:47,841 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:47,841 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:47,841 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:22:48,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:22:48,252 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:22:48,253 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678018361] [2019-10-15 03:22:48,254 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:22:48,254 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:22:48,254 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707716572] [2019-10-15 03:22:48,260 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:22:48,260 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:22:48,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:22:48,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:22:48,279 INFO L87 Difference]: Start difference. First operand 129 states. Second operand 2 states. [2019-10-15 03:22:48,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:22:48,335 INFO L93 Difference]: Finished difference Result 188 states and 227 transitions. [2019-10-15 03:22:48,335 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:22:48,336 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2019-10-15 03:22:48,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:22:48,349 INFO L225 Difference]: With dead ends: 188 [2019-10-15 03:22:48,349 INFO L226 Difference]: Without dead ends: 96 [2019-10-15 03:22:48,354 INFO L600 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 [2019-10-15 03:22:48,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2019-10-15 03:22:48,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2019-10-15 03:22:48,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2019-10-15 03:22:48,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 109 transitions. [2019-10-15 03:22:48,407 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 109 transitions. Word has length 52 [2019-10-15 03:22:48,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:22:48,408 INFO L462 AbstractCegarLoop]: Abstraction has 96 states and 109 transitions. [2019-10-15 03:22:48,408 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:22:48,408 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 109 transitions. [2019-10-15 03:22:48,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-10-15 03:22:48,412 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:22:48,412 INFO L380 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] [2019-10-15 03:22:48,412 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:22:48,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:22:48,413 INFO L82 PathProgramCache]: Analyzing trace with hash -294944279, now seen corresponding path program 1 times [2019-10-15 03:22:48,413 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:22:48,414 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426107796] [2019-10-15 03:22:48,414 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:48,414 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:48,414 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:22:48,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:22:48,588 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:22:48,589 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426107796] [2019-10-15 03:22:48,589 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:22:48,590 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:22:48,590 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776846681] [2019-10-15 03:22:48,592 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:22:48,592 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:22:48,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:22:48,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:22:48,593 INFO L87 Difference]: Start difference. First operand 96 states and 109 transitions. Second operand 3 states. [2019-10-15 03:22:48,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:22:48,617 INFO L93 Difference]: Finished difference Result 146 states and 166 transitions. [2019-10-15 03:22:48,617 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:22:48,617 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2019-10-15 03:22:48,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:22:48,620 INFO L225 Difference]: With dead ends: 146 [2019-10-15 03:22:48,620 INFO L226 Difference]: Without dead ends: 88 [2019-10-15 03:22:48,621 INFO L600 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 [2019-10-15 03:22:48,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2019-10-15 03:22:48,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2019-10-15 03:22:48,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2019-10-15 03:22:48,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 98 transitions. [2019-10-15 03:22:48,635 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 98 transitions. Word has length 53 [2019-10-15 03:22:48,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:22:48,636 INFO L462 AbstractCegarLoop]: Abstraction has 88 states and 98 transitions. [2019-10-15 03:22:48,636 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:22:48,636 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 98 transitions. [2019-10-15 03:22:48,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-10-15 03:22:48,639 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:22:48,639 INFO L380 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] [2019-10-15 03:22:48,639 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:22:48,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:22:48,640 INFO L82 PathProgramCache]: Analyzing trace with hash -385340335, now seen corresponding path program 1 times [2019-10-15 03:22:48,640 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:22:48,640 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979428399] [2019-10-15 03:22:48,641 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:48,641 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:48,641 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:22:48,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:22:48,783 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:22:48,783 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979428399] [2019-10-15 03:22:48,785 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:22:48,785 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:22:48,786 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452757713] [2019-10-15 03:22:48,788 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:22:48,788 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:22:48,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:22:48,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:22:48,789 INFO L87 Difference]: Start difference. First operand 88 states and 98 transitions. Second operand 3 states. [2019-10-15 03:22:48,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:22:48,831 INFO L93 Difference]: Finished difference Result 151 states and 172 transitions. [2019-10-15 03:22:48,833 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:22:48,859 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 55 [2019-10-15 03:22:48,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:22:48,866 INFO L225 Difference]: With dead ends: 151 [2019-10-15 03:22:48,866 INFO L226 Difference]: Without dead ends: 88 [2019-10-15 03:22:48,869 INFO L600 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 [2019-10-15 03:22:48,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2019-10-15 03:22:48,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2019-10-15 03:22:48,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2019-10-15 03:22:48,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 97 transitions. [2019-10-15 03:22:48,898 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 97 transitions. Word has length 55 [2019-10-15 03:22:48,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:22:48,902 INFO L462 AbstractCegarLoop]: Abstraction has 88 states and 97 transitions. [2019-10-15 03:22:48,902 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:22:48,902 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 97 transitions. [2019-10-15 03:22:48,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-10-15 03:22:48,908 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:22:48,908 INFO L380 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] [2019-10-15 03:22:48,908 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:22:48,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:22:48,909 INFO L82 PathProgramCache]: Analyzing trace with hash 2028163054, now seen corresponding path program 1 times [2019-10-15 03:22:48,909 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:22:48,912 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921255215] [2019-10-15 03:22:48,912 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:48,912 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:48,913 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:22:48,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:22:49,066 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:22:49,066 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921255215] [2019-10-15 03:22:49,067 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:22:49,067 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 03:22:49,067 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469024852] [2019-10-15 03:22:49,068 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 03:22:49,068 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:22:49,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 03:22:49,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 03:22:49,069 INFO L87 Difference]: Start difference. First operand 88 states and 97 transitions. Second operand 5 states. [2019-10-15 03:22:49,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:22:49,548 INFO L93 Difference]: Finished difference Result 228 states and 267 transitions. [2019-10-15 03:22:49,548 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 03:22:49,548 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 63 [2019-10-15 03:22:49,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:22:49,554 INFO L225 Difference]: With dead ends: 228 [2019-10-15 03:22:49,554 INFO L226 Difference]: Without dead ends: 165 [2019-10-15 03:22:49,555 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:22:49,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2019-10-15 03:22:49,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 150. [2019-10-15 03:22:49,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2019-10-15 03:22:49,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 168 transitions. [2019-10-15 03:22:49,590 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 168 transitions. Word has length 63 [2019-10-15 03:22:49,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:22:49,590 INFO L462 AbstractCegarLoop]: Abstraction has 150 states and 168 transitions. [2019-10-15 03:22:49,590 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 03:22:49,591 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 168 transitions. [2019-10-15 03:22:49,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-10-15 03:22:49,592 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:22:49,592 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:22:49,593 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:22:49,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:22:49,593 INFO L82 PathProgramCache]: Analyzing trace with hash -901395017, now seen corresponding path program 1 times [2019-10-15 03:22:49,593 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:22:49,594 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012795176] [2019-10-15 03:22:49,594 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:49,594 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:49,594 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:22:49,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:22:49,807 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:22:49,808 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012795176] [2019-10-15 03:22:49,808 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:22:49,808 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-15 03:22:49,808 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666533890] [2019-10-15 03:22:49,809 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-15 03:22:49,809 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:22:49,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-15 03:22:49,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2019-10-15 03:22:49,810 INFO L87 Difference]: Start difference. First operand 150 states and 168 transitions. Second operand 12 states. [2019-10-15 03:22:50,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:22:50,750 INFO L93 Difference]: Finished difference Result 407 states and 468 transitions. [2019-10-15 03:22:50,751 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-15 03:22:50,751 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 72 [2019-10-15 03:22:50,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:22:50,762 INFO L225 Difference]: With dead ends: 407 [2019-10-15 03:22:50,762 INFO L226 Difference]: Without dead ends: 282 [2019-10-15 03:22:50,766 INFO L600 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 [2019-10-15 03:22:50,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2019-10-15 03:22:50,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 270. [2019-10-15 03:22:50,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2019-10-15 03:22:50,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 309 transitions. [2019-10-15 03:22:50,798 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 309 transitions. Word has length 72 [2019-10-15 03:22:50,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:22:50,798 INFO L462 AbstractCegarLoop]: Abstraction has 270 states and 309 transitions. [2019-10-15 03:22:50,798 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-15 03:22:50,799 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 309 transitions. [2019-10-15 03:22:50,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-10-15 03:22:50,800 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:22:50,800 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:22:50,800 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:22:50,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:22:50,801 INFO L82 PathProgramCache]: Analyzing trace with hash -297836122, now seen corresponding path program 1 times [2019-10-15 03:22:50,801 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:22:50,802 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116634198] [2019-10-15 03:22:50,802 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:50,802 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:50,802 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:22:50,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:22:50,927 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-15 03:22:50,928 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116634198] [2019-10-15 03:22:50,928 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:22:50,929 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:22:50,929 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621496622] [2019-10-15 03:22:50,929 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:22:50,930 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:22:50,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:22:50,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:22:50,930 INFO L87 Difference]: Start difference. First operand 270 states and 309 transitions. Second operand 7 states. [2019-10-15 03:22:51,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:22:51,490 INFO L93 Difference]: Finished difference Result 539 states and 635 transitions. [2019-10-15 03:22:51,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 03:22:51,491 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 72 [2019-10-15 03:22:51,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:22:51,494 INFO L225 Difference]: With dead ends: 539 [2019-10-15 03:22:51,495 INFO L226 Difference]: Without dead ends: 294 [2019-10-15 03:22:51,496 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-15 03:22:51,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2019-10-15 03:22:51,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 267. [2019-10-15 03:22:51,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2019-10-15 03:22:51,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 300 transitions. [2019-10-15 03:22:51,522 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 300 transitions. Word has length 72 [2019-10-15 03:22:51,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:22:51,523 INFO L462 AbstractCegarLoop]: Abstraction has 267 states and 300 transitions. [2019-10-15 03:22:51,523 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:22:51,524 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 300 transitions. [2019-10-15 03:22:51,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2019-10-15 03:22:51,525 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:22:51,525 INFO L380 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] [2019-10-15 03:22:51,526 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:22:51,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:22:51,526 INFO L82 PathProgramCache]: Analyzing trace with hash 1964737885, now seen corresponding path program 1 times [2019-10-15 03:22:51,526 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:22:51,526 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965412017] [2019-10-15 03:22:51,527 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:51,527 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:51,527 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:22:51,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:22:51,749 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:22:51,749 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965412017] [2019-10-15 03:22:51,749 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:22:51,750 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-15 03:22:51,750 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146507444] [2019-10-15 03:22:51,750 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 03:22:51,751 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:22:51,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 03:22:51,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-15 03:22:51,751 INFO L87 Difference]: Start difference. First operand 267 states and 300 transitions. Second operand 9 states. [2019-10-15 03:22:52,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:22:52,517 INFO L93 Difference]: Finished difference Result 812 states and 937 transitions. [2019-10-15 03:22:52,519 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-15 03:22:52,519 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 75 [2019-10-15 03:22:52,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:22:52,524 INFO L225 Difference]: With dead ends: 812 [2019-10-15 03:22:52,524 INFO L226 Difference]: Without dead ends: 622 [2019-10-15 03:22:52,526 INFO L600 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 [2019-10-15 03:22:52,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2019-10-15 03:22:52,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 530. [2019-10-15 03:22:52,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 530 states. [2019-10-15 03:22:52,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 602 transitions. [2019-10-15 03:22:52,576 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 602 transitions. Word has length 75 [2019-10-15 03:22:52,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:22:52,576 INFO L462 AbstractCegarLoop]: Abstraction has 530 states and 602 transitions. [2019-10-15 03:22:52,576 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 03:22:52,577 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 602 transitions. [2019-10-15 03:22:52,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-10-15 03:22:52,589 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:22:52,589 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:22:52,589 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:22:52,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:22:52,590 INFO L82 PathProgramCache]: Analyzing trace with hash -552360973, now seen corresponding path program 1 times [2019-10-15 03:22:52,590 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:22:52,591 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162465673] [2019-10-15 03:22:52,591 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:52,591 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:52,592 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:22:52,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:22:52,763 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-10-15 03:22:52,764 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162465673] [2019-10-15 03:22:52,764 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [583430755] [2019-10-15 03:22:52,764 INFO L94 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 [2019-10-15 03:22:52,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:22:52,968 INFO L256 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 03:22:52,979 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:22:53,119 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 20 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:22:53,119 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:22:53,448 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-10-15 03:22:53,448 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1099828163] [2019-10-15 03:22:53,476 INFO L162 IcfgInterpreter]: Started Sifa with 84 locations of interest [2019-10-15 03:22:53,477 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:22:53,483 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:22:53,490 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:22:53,490 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 03:23:03,459 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2019-10-15 03:23:05,245 WARN L191 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-15 03:23:05,379 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-15 03:23:05,528 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-15 03:23:05,660 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-15 03:23:05,952 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:06,194 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:06,401 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:06,641 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:06,958 WARN L191 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 546 DAG size of output: 544 [2019-10-15 03:23:07,112 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:07,256 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:07,372 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:07,478 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:07,635 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:07,645 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 187 for LOIs [2019-10-15 03:23:07,882 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 546 for LOIs [2019-10-15 03:23:08,043 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:08,200 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:08,373 WARN L191 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:08,509 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:08,631 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:08,763 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:08,941 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:09,097 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:09,231 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:09,502 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 546 [2019-10-15 03:23:09,609 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:09,749 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:09,885 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:09,992 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:10,118 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:10,324 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:10,463 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:10,601 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:10,704 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:10,827 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:11,150 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:11,279 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:11,385 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:11,511 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:11,830 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:11,934 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:12,046 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:12,206 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:12,554 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:12,659 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:12,770 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:12,892 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:13,061 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:13,187 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:13,333 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:13,618 WARN L191 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-15 03:23:13,730 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:13,858 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:13,974 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:14,099 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:14,248 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:14,399 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:14,519 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:14,644 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:14,866 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:23:14,990 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:15,117 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:15,244 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:15,363 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:15,489 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:15,605 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-15 03:23:15,720 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-15 03:23:15,845 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:15,960 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:16,085 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:16,220 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:23:16,383 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:16,504 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:16,634 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:23:16,847 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 568 DAG size of output: 564 [2019-10-15 03:23:16,962 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:17,113 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:23:17,230 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:17,344 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:17,467 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:23:17,694 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-15 03:23:17,808 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:17,944 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:18,151 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-15 03:23:18,268 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:18,396 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:18,508 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:18,621 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:18,764 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:19,002 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-15 03:23:19,125 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-15 03:23:19,252 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:19,373 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:19,487 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:19,626 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:19,828 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-15 03:23:19,944 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-15 03:23:20,082 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:20,301 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-15 03:23:20,416 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-15 03:23:20,551 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:20,743 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 568 DAG size of output: 564 [2019-10-15 03:23:20,860 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:21,040 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:23:21,269 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-15 03:23:21,389 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:21,514 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:21,722 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-15 03:23:21,835 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:21,962 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:22,073 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:22,185 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:22,305 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:22,524 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-15 03:23:22,639 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:22,772 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:22,990 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-15 03:23:23,103 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:23,229 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:23,342 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:23,455 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:23,576 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:23,797 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:23:23,928 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:24,055 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:24,267 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:23:24,381 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:24,507 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:24,714 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:23:24,829 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:24,956 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:25,165 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-15 03:23:25,284 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-15 03:23:25,414 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:25,606 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 568 DAG size of output: 564 [2019-10-15 03:23:25,723 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:25,851 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:23:26,123 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 568 DAG size of output: 564 [2019-10-15 03:23:26,241 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564