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_product38.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:22:45,825 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:22:45,828 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:22:45,846 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:22:45,847 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:22:45,849 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:22:45,850 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:22:45,860 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:22:45,865 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:22:45,867 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:22:45,869 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:22:45,870 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:22:45,870 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:22:45,872 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:22:45,874 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:22:45,875 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:22:45,877 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:22:45,878 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:22:45,879 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:22:45,883 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:22:45,888 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:22:45,890 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:22:45,891 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:22:45,894 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:22:45,896 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:22:45,896 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:22:45,896 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:22:45,898 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:22:45,899 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:22:45,900 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:22:45,900 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:22:45,902 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:22:45,903 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:22:45,904 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:22:45,905 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:22:45,905 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:22:45,906 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:22:45,906 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:22:45,906 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:22:45,907 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:22:45,908 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:22:45,909 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 03:22:45,926 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:22:45,926 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:22:45,927 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:22:45,927 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:22:45,927 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:22:45,928 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:22:45,928 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:22:45,928 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:22:45,928 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:22:45,928 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:22:45,928 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:22:45,929 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:22:45,929 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:22:45,929 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:22:45,929 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:22:45,929 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:22:45,930 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:22:45,930 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:22:45,930 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:22:45,930 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:22:45,930 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:22:45,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:22:45,931 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:22:45,931 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:22:45,931 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:22:45,931 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:22:45,932 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:22:45,932 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:22:45,932 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 03:22:46,223 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:22:46,247 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:22:46,250 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:22:46,252 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:22:46,252 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:22:46,253 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product38.cil.c [2019-10-15 03:22:46,332 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c48bf36a/295f775d4c4543e080c3194fbcfb754d/FLAG5bd26f096 [2019-10-15 03:22:46,929 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:22:46,933 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product38.cil.c [2019-10-15 03:22:46,956 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c48bf36a/295f775d4c4543e080c3194fbcfb754d/FLAG5bd26f096 [2019-10-15 03:22:47,186 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c48bf36a/295f775d4c4543e080c3194fbcfb754d [2019-10-15 03:22:47,196 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:22:47,198 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:22:47,199 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:22:47,199 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:22:47,203 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:22:47,204 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:22:47" (1/1) ... [2019-10-15 03:22:47,207 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@283ca1de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:47, skipping insertion in model container [2019-10-15 03:22:47,207 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:22:47" (1/1) ... [2019-10-15 03:22:47,214 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:22:47,257 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:22:47,724 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:22:47,744 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:22:47,860 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:22:47,897 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:22:47,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:47 WrapperNode [2019-10-15 03:22:47,898 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:22:47,898 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:22:47,898 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:22:47,899 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:22:47,909 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:47" (1/1) ... [2019-10-15 03:22:47,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:47" (1/1) ... [2019-10-15 03:22:47,930 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:47" (1/1) ... [2019-10-15 03:22:47,930 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:47" (1/1) ... [2019-10-15 03:22:47,965 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:47" (1/1) ... [2019-10-15 03:22:47,979 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:47" (1/1) ... [2019-10-15 03:22:47,985 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:47" (1/1) ... [2019-10-15 03:22:48,006 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:22:48,007 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:22:48,007 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:22:48,007 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:22:48,009 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:47" (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 03:22:48,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:22:48,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:22:48,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:22:48,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:22:48,099 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-15 03:22:48,100 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-15 03:22:48,100 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:22:48,101 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-15 03:22:48,101 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:22:48,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-15 03:22:48,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-15 03:22:48,103 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-15 03:22:48,103 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:22:48,103 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:22:48,103 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:22:48,103 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:22:48,105 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:22:48,105 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:22:48,105 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-15 03:22:48,106 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-15 03:22:48,106 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-15 03:22:48,106 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-15 03:22:48,107 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-15 03:22:48,107 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-15 03:22:48,107 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-15 03:22:48,108 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-15 03:22:48,108 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-15 03:22:48,108 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-15 03:22:48,108 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-15 03:22:48,108 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-15 03:22:48,109 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-15 03:22:48,109 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-15 03:22:48,109 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-15 03:22:48,109 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-15 03:22:48,109 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-15 03:22:48,109 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-15 03:22:48,109 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:22:48,109 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:22:48,110 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:22:48,110 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:22:48,110 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:22:48,110 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:22:48,110 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:22:48,110 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:22:48,110 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:22:48,110 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-15 03:22:48,111 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-15 03:22:48,111 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-15 03:22:48,111 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-15 03:22:48,111 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-15 03:22:48,111 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-15 03:22:48,111 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:22:48,111 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-15 03:22:48,111 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:22:48,111 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-15 03:22:48,112 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:22:48,112 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:22:48,112 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:22:48,112 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:22:48,112 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-15 03:22:48,113 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-15 03:22:48,113 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-15 03:22:48,113 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-15 03:22:48,113 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:22:48,113 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:22:48,113 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:22:48,113 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:22:48,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:22:48,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:22:48,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:22:48,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:22:48,114 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:22:48,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:22:48,115 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:22:48,115 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:22:48,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:22:48,115 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:22:48,116 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:22:48,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:22:48,116 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:22:48,116 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-15 03:22:48,116 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-15 03:22:48,116 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-15 03:22:48,116 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-15 03:22:48,116 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-15 03:22:48,117 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-15 03:22:48,117 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-15 03:22:48,117 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-15 03:22:48,117 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-15 03:22:48,117 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-15 03:22:48,117 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-15 03:22:48,118 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-15 03:22:48,118 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:22:48,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:22:48,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:22:48,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:22:49,788 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:22:49,788 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-15 03:22:49,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:22:49 BoogieIcfgContainer [2019-10-15 03:22:49,791 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:22:49,792 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:22:49,793 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:22:49,797 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:22:49,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:22:47" (1/3) ... [2019-10-15 03:22:49,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13fc6ecf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:22:49, skipping insertion in model container [2019-10-15 03:22:49,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:47" (2/3) ... [2019-10-15 03:22:49,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13fc6ecf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:22:49, skipping insertion in model container [2019-10-15 03:22:49,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:22:49" (3/3) ... [2019-10-15 03:22:49,802 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product38.cil.c [2019-10-15 03:22:49,814 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:22:49,824 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:22:49,836 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:22:49,872 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:22:49,872 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:22:49,872 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:22:49,873 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:22:49,873 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:22:49,873 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:22:49,873 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:22:49,873 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:22:49,905 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states. [2019-10-15 03:22:49,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-15 03:22:49,920 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:22:49,921 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 03:22:49,925 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:22:49,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:22:49,932 INFO L82 PathProgramCache]: Analyzing trace with hash 2063799279, now seen corresponding path program 1 times [2019-10-15 03:22:49,942 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:22:49,943 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013406091] [2019-10-15 03:22:49,943 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:49,943 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:49,943 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:22:50,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:22:50,354 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 03:22:50,354 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013406091] [2019-10-15 03:22:50,355 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:22:50,355 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:22:50,356 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769769114] [2019-10-15 03:22:50,360 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:22:50,360 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:22:50,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:22:50,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:22:50,373 INFO L87 Difference]: Start difference. First operand 151 states. Second operand 2 states. [2019-10-15 03:22:50,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:22:50,415 INFO L93 Difference]: Finished difference Result 232 states and 279 transitions. [2019-10-15 03:22:50,415 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:22:50,417 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2019-10-15 03:22:50,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:22:50,430 INFO L225 Difference]: With dead ends: 232 [2019-10-15 03:22:50,431 INFO L226 Difference]: Without dead ends: 118 [2019-10-15 03:22:50,436 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 03:22:50,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2019-10-15 03:22:50,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2019-10-15 03:22:50,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2019-10-15 03:22:50,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 135 transitions. [2019-10-15 03:22:50,496 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 135 transitions. Word has length 52 [2019-10-15 03:22:50,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:22:50,497 INFO L462 AbstractCegarLoop]: Abstraction has 118 states and 135 transitions. [2019-10-15 03:22:50,497 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:22:50,497 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 135 transitions. [2019-10-15 03:22:50,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-10-15 03:22:50,502 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:22:50,502 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 03:22:50,503 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:22:50,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:22:50,503 INFO L82 PathProgramCache]: Analyzing trace with hash -1913978571, now seen corresponding path program 1 times [2019-10-15 03:22:50,503 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:22:50,504 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906982032] [2019-10-15 03:22:50,504 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:50,504 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:50,504 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:22:50,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:22:50,641 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 03:22:50,642 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906982032] [2019-10-15 03:22:50,642 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:22:50,643 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:22:50,643 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756471940] [2019-10-15 03:22:50,645 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:22:50,645 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:22:50,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:22:50,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:22:50,646 INFO L87 Difference]: Start difference. First operand 118 states and 135 transitions. Second operand 3 states. [2019-10-15 03:22:50,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:22:50,671 INFO L93 Difference]: Finished difference Result 186 states and 213 transitions. [2019-10-15 03:22:50,671 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:22:50,671 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2019-10-15 03:22:50,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:22:50,674 INFO L225 Difference]: With dead ends: 186 [2019-10-15 03:22:50,674 INFO L226 Difference]: Without dead ends: 110 [2019-10-15 03:22:50,676 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 03:22:50,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-10-15 03:22:50,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2019-10-15 03:22:50,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-10-15 03:22:50,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 124 transitions. [2019-10-15 03:22:50,693 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 124 transitions. Word has length 53 [2019-10-15 03:22:50,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:22:50,693 INFO L462 AbstractCegarLoop]: Abstraction has 110 states and 124 transitions. [2019-10-15 03:22:50,694 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:22:50,694 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 124 transitions. [2019-10-15 03:22:50,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-10-15 03:22:50,697 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:22:50,697 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] [2019-10-15 03:22:50,697 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:22:50,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:22:50,698 INFO L82 PathProgramCache]: Analyzing trace with hash -1791567053, now seen corresponding path program 1 times [2019-10-15 03:22:50,698 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:22:50,698 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780686378] [2019-10-15 03:22:50,699 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:50,699 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:50,699 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:22:50,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:22:50,945 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 03:22:50,946 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780686378] [2019-10-15 03:22:50,946 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:22:50,946 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:22:50,947 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812944337] [2019-10-15 03:22:50,948 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:22:50,948 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:22:50,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:22:50,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:22:50,949 INFO L87 Difference]: Start difference. First operand 110 states and 124 transitions. Second operand 7 states. [2019-10-15 03:22:51,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:22:51,318 INFO L93 Difference]: Finished difference Result 195 states and 224 transitions. [2019-10-15 03:22:51,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 03:22:51,319 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-10-15 03:22:51,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:22:51,321 INFO L225 Difference]: With dead ends: 195 [2019-10-15 03:22:51,321 INFO L226 Difference]: Without dead ends: 110 [2019-10-15 03:22:51,323 INFO L600 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 [2019-10-15 03:22:51,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-10-15 03:22:51,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2019-10-15 03:22:51,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-10-15 03:22:51,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 123 transitions. [2019-10-15 03:22:51,339 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 123 transitions. Word has length 56 [2019-10-15 03:22:51,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:22:51,347 INFO L462 AbstractCegarLoop]: Abstraction has 110 states and 123 transitions. [2019-10-15 03:22:51,347 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:22:51,348 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 123 transitions. [2019-10-15 03:22:51,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-10-15 03:22:51,358 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:22:51,358 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] [2019-10-15 03:22:51,361 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:22:51,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:22:51,362 INFO L82 PathProgramCache]: Analyzing trace with hash 1490175313, now seen corresponding path program 1 times [2019-10-15 03:22:51,362 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:22:51,362 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925942951] [2019-10-15 03:22:51,363 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:51,363 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:51,363 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:22:51,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:22:51,528 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 03:22:51,529 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925942951] [2019-10-15 03:22:51,529 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:22:51,529 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 03:22:51,530 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509660634] [2019-10-15 03:22:51,531 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 03:22:51,532 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:22:51,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 03:22:51,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 03:22:51,533 INFO L87 Difference]: Start difference. First operand 110 states and 123 transitions. Second operand 5 states. [2019-10-15 03:22:52,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:22:52,079 INFO L93 Difference]: Finished difference Result 289 states and 342 transitions. [2019-10-15 03:22:52,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 03:22:52,082 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 69 [2019-10-15 03:22:52,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:22:52,085 INFO L225 Difference]: With dead ends: 289 [2019-10-15 03:22:52,085 INFO L226 Difference]: Without dead ends: 204 [2019-10-15 03:22:52,086 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-15 03:22:52,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2019-10-15 03:22:52,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 187. [2019-10-15 03:22:52,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2019-10-15 03:22:52,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 209 transitions. [2019-10-15 03:22:52,111 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 209 transitions. Word has length 69 [2019-10-15 03:22:52,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:22:52,111 INFO L462 AbstractCegarLoop]: Abstraction has 187 states and 209 transitions. [2019-10-15 03:22:52,112 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 03:22:52,112 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 209 transitions. [2019-10-15 03:22:52,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-10-15 03:22:52,113 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:22:52,113 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, 1, 1, 1] [2019-10-15 03:22:52,114 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:22:52,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:22:52,114 INFO L82 PathProgramCache]: Analyzing trace with hash 1638628094, now seen corresponding path program 1 times [2019-10-15 03:22:52,115 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:22:52,115 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202379949] [2019-10-15 03:22:52,115 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:52,115 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:52,115 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:22:52,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:22:52,362 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 03:22:52,363 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202379949] [2019-10-15 03:22:52,363 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:22:52,363 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-15 03:22:52,363 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177395675] [2019-10-15 03:22:52,365 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-15 03:22:52,365 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:22:52,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-15 03:22:52,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2019-10-15 03:22:52,367 INFO L87 Difference]: Start difference. First operand 187 states and 209 transitions. Second operand 12 states. [2019-10-15 03:22:53,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:22:53,312 INFO L93 Difference]: Finished difference Result 503 states and 578 transitions. [2019-10-15 03:22:53,313 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-15 03:22:53,313 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 78 [2019-10-15 03:22:53,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:22:53,318 INFO L225 Difference]: With dead ends: 503 [2019-10-15 03:22:53,318 INFO L226 Difference]: Without dead ends: 341 [2019-10-15 03:22:53,320 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 03:22:53,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2019-10-15 03:22:53,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 329. [2019-10-15 03:22:53,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 329 states. [2019-10-15 03:22:53,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 377 transitions. [2019-10-15 03:22:53,360 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 377 transitions. Word has length 78 [2019-10-15 03:22:53,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:22:53,360 INFO L462 AbstractCegarLoop]: Abstraction has 329 states and 377 transitions. [2019-10-15 03:22:53,360 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-15 03:22:53,361 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 377 transitions. [2019-10-15 03:22:53,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-10-15 03:22:53,362 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:22:53,362 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, 1, 1, 1] [2019-10-15 03:22:53,363 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:22:53,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:22:53,363 INFO L82 PathProgramCache]: Analyzing trace with hash -630120691, now seen corresponding path program 1 times [2019-10-15 03:22:53,363 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:22:53,364 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806209797] [2019-10-15 03:22:53,364 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:53,364 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:53,364 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:22:53,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:22:53,501 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 03:22:53,501 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806209797] [2019-10-15 03:22:53,502 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:22:53,503 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:22:53,503 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707523609] [2019-10-15 03:22:53,503 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:22:53,503 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:22:53,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:22:53,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:22:53,504 INFO L87 Difference]: Start difference. First operand 329 states and 377 transitions. Second operand 7 states. [2019-10-15 03:22:54,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:22:54,086 INFO L93 Difference]: Finished difference Result 661 states and 783 transitions. [2019-10-15 03:22:54,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 03:22:54,087 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 78 [2019-10-15 03:22:54,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:22:54,092 INFO L225 Difference]: With dead ends: 661 [2019-10-15 03:22:54,092 INFO L226 Difference]: Without dead ends: 357 [2019-10-15 03:22:54,094 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-15 03:22:54,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2019-10-15 03:22:54,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 326. [2019-10-15 03:22:54,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 326 states. [2019-10-15 03:22:54,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 368 transitions. [2019-10-15 03:22:54,126 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 368 transitions. Word has length 78 [2019-10-15 03:22:54,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:22:54,127 INFO L462 AbstractCegarLoop]: Abstraction has 326 states and 368 transitions. [2019-10-15 03:22:54,127 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:22:54,127 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 368 transitions. [2019-10-15 03:22:54,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-10-15 03:22:54,129 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:22:54,129 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, 1, 1, 1, 1, 1, 1] [2019-10-15 03:22:54,129 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:22:54,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:22:54,130 INFO L82 PathProgramCache]: Analyzing trace with hash -1700113218, now seen corresponding path program 1 times [2019-10-15 03:22:54,130 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:22:54,130 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479242036] [2019-10-15 03:22:54,130 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:54,131 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:54,131 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:22:54,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:22:54,347 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 03:22:54,348 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479242036] [2019-10-15 03:22:54,348 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:22:54,348 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-15 03:22:54,349 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95491805] [2019-10-15 03:22:54,349 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 03:22:54,349 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:22:54,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 03:22:54,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-15 03:22:54,350 INFO L87 Difference]: Start difference. First operand 326 states and 368 transitions. Second operand 9 states. [2019-10-15 03:22:55,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:22:55,226 INFO L93 Difference]: Finished difference Result 999 states and 1158 transitions. [2019-10-15 03:22:55,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-15 03:22:55,228 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 81 [2019-10-15 03:22:55,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:22:55,234 INFO L225 Difference]: With dead ends: 999 [2019-10-15 03:22:55,234 INFO L226 Difference]: Without dead ends: 759 [2019-10-15 03:22:55,236 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2019-10-15 03:22:55,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2019-10-15 03:22:55,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 654. [2019-10-15 03:22:55,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 654 states. [2019-10-15 03:22:55,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 746 transitions. [2019-10-15 03:22:55,303 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 746 transitions. Word has length 81 [2019-10-15 03:22:55,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:22:55,307 INFO L462 AbstractCegarLoop]: Abstraction has 654 states and 746 transitions. [2019-10-15 03:22:55,308 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 03:22:55,308 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 746 transitions. [2019-10-15 03:22:55,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2019-10-15 03:22:55,315 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:22:55,316 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:22:55,316 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:22:55,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:22:55,317 INFO L82 PathProgramCache]: Analyzing trace with hash -883352107, now seen corresponding path program 1 times [2019-10-15 03:22:55,325 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:22:55,325 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181772951] [2019-10-15 03:22:55,325 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:55,325 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:55,325 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:22:55,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:22:55,547 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 19 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-15 03:22:55,548 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181772951] [2019-10-15 03:22:55,548 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [327194475] [2019-10-15 03:22:55,548 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 03:22:55,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:22:55,751 INFO L256 TraceCheckSpWp]: Trace formula consists of 904 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 03:22:55,764 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:22:55,921 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 23 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:22:55,922 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:22:56,314 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 19 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-15 03:22:56,314 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2132490806] [2019-10-15 03:22:56,346 INFO L162 IcfgInterpreter]: Started Sifa with 100 locations of interest [2019-10-15 03:22:56,346 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:22:56,354 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:22:56,363 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:22:56,363 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 03:23:06,365 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2019-10-15 03:23:07,962 WARN L191 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-15 03:23:08,094 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-15 03:23:08,236 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-15 03:23:08,416 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-15 03:23:08,737 WARN L191 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:09,006 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:09,261 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:09,526 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:09,900 WARN L191 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 546 DAG size of output: 544 [2019-10-15 03:23:10,082 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:10,232 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:10,353 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:10,459 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:10,622 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:10,633 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 187 for LOIs [2019-10-15 03:23:10,925 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 513 [2019-10-15 03:23:10,927 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 546 for LOIs [2019-10-15 03:23:11,087 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:11,214 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:11,392 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:11,530 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:11,634 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:11,768 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:12,011 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:12,143 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:12,362 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 546 [2019-10-15 03:23:12,479 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:12,680 WARN L191 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:13,016 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:13,118 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:13,222 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:13,393 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:13,503 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:13,725 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:14,062 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:14,187 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:14,415 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:14,738 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:14,957 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:15,080 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:15,402 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:15,608 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:15,768 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:15,908 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:16,022 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:16,171 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:16,471 WARN L191 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:23:16,584 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:16,732 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:16,861 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:16,974 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:17,096 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:17,249 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:23:17,364 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:23:17,494 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:17,719 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-15 03:23:17,858 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:17,986 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:18,190 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-15 03:23:18,305 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:23:18,430 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:18,547 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:23:18,661 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:23:18,796 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:18,912 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:19,027 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:19,162 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-15 03:23:19,293 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:19,407 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:19,539 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-15 03:23:19,751 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 568 [2019-10-15 03:23:19,889 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:20,080 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-15 03:23:20,199 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:20,318 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:20,444 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-15 03:23:20,699 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:23:20,813 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:20,939 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:21,147 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:23:21,261 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:21,393 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:21,508 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:21,622 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:21,760 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:21,977 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-15 03:23:22,093 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:22,243 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:22,364 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:22,479 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:22,616 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:22,833 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-15 03:23:22,951 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:23,076 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:23,299 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-15 03:23:23,416 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:23:23,625 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:23,847 WARN L191 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 568 [2019-10-15 03:23:23,962 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:24,101 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-15 03:23:24,320 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:23:24,434 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:24,567 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:24,796 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:23:24,909 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:25,039 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:25,156 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:25,270 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:25,392 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:25,608 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:23:25,722 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:25,852 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:26,057 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:23:26,170 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:26,295 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:26,518 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:23:26,630 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:26,755 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:26,965 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:23:27,093 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:27,216 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:27,328 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:27,440 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:27,562 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:27,688 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:27,803 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568