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_product42.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:22:50,878 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:22:50,881 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:22:50,893 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:22:50,894 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:22:50,895 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:22:50,896 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:22:50,899 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:22:50,900 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:22:50,901 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:22:50,902 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:22:50,903 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:22:50,904 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:22:50,905 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:22:50,906 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:22:50,907 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:22:50,908 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:22:50,909 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:22:50,910 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:22:50,912 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:22:50,914 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:22:50,915 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:22:50,916 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:22:50,917 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:22:50,919 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:22:50,920 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:22:50,920 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:22:50,921 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:22:50,921 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:22:50,922 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:22:50,923 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:22:50,923 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:22:50,924 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:22:50,925 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:22:50,926 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:22:50,926 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:22:50,927 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:22:50,927 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:22:50,928 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:22:50,929 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:22:50,929 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:22:50,930 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 03:22:50,945 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:22:50,945 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:22:50,946 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:22:50,947 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:22:50,947 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:22:50,947 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:22:50,947 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:22:50,948 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:22:50,948 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:22:50,948 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:22:50,948 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:22:50,948 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:22:50,948 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:22:50,949 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:22:50,949 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:22:50,949 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:22:50,949 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:22:50,949 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:22:50,950 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:22:50,950 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:22:50,950 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:22:50,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:22:50,950 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:22:50,951 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:22:50,951 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:22:50,951 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:22:50,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:22:50,951 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:22:50,952 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 03:22:51,248 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:22:51,262 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:22:51,265 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:22:51,267 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:22:51,267 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:22:51,268 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product42.cil.c [2019-10-15 03:22:51,332 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11f1f7514/d94b91eccdce402e8956d92d88c3d06b/FLAG4a3b82774 [2019-10-15 03:22:51,808 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:22:51,809 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product42.cil.c [2019-10-15 03:22:51,823 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11f1f7514/d94b91eccdce402e8956d92d88c3d06b/FLAG4a3b82774 [2019-10-15 03:22:52,168 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11f1f7514/d94b91eccdce402e8956d92d88c3d06b [2019-10-15 03:22:52,179 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:22:52,181 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:22:52,182 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:22:52,182 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:22:52,186 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:22:52,187 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:22:52" (1/1) ... [2019-10-15 03:22:52,190 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@120087b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:52, skipping insertion in model container [2019-10-15 03:22:52,190 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:22:52" (1/1) ... [2019-10-15 03:22:52,199 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:22:52,250 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:22:52,861 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:22:52,876 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:22:52,951 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:22:52,989 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:22:52,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:52 WrapperNode [2019-10-15 03:22:52,990 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:22:52,991 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:22:52,991 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:22:52,992 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:22:53,007 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:52" (1/1) ... [2019-10-15 03:22:53,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:52" (1/1) ... [2019-10-15 03:22:53,028 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:52" (1/1) ... [2019-10-15 03:22:53,028 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:52" (1/1) ... [2019-10-15 03:22:53,057 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:52" (1/1) ... [2019-10-15 03:22:53,067 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:52" (1/1) ... [2019-10-15 03:22:53,079 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:52" (1/1) ... [2019-10-15 03:22:53,094 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:22:53,094 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:22:53,094 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:22:53,095 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:22:53,099 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:52" (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 03:22:53,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:22:53,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:22:53,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:22:53,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-15 03:22:53,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-15 03:22:53,163 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-15 03:22:53,163 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-15 03:22:53,163 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-15 03:22:53,163 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:22:53,163 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-15 03:22:53,163 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:22:53,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:22:53,164 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:22:53,164 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:22:53,166 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:22:53,166 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:22:53,169 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:22:53,169 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:22:53,169 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:22:53,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:22:53,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:22:53,171 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:22:53,171 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-15 03:22:53,171 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-15 03:22:53,172 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-15 03:22:53,173 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-15 03:22:53,173 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-15 03:22:53,173 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-15 03:22:53,173 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-15 03:22:53,173 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:22:53,174 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-15 03:22:53,174 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-15 03:22:53,174 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-15 03:22:53,174 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2019-10-15 03:22:53,174 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-15 03:22:53,174 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-15 03:22:53,174 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-15 03:22:53,175 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-15 03:22:53,175 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-15 03:22:53,175 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-15 03:22:53,175 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-15 03:22:53,175 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:22:53,175 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:22:53,175 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:22:53,175 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:22:53,175 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-15 03:22:53,176 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-15 03:22:53,176 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-15 03:22:53,176 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-15 03:22:53,176 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-15 03:22:53,176 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-15 03:22:53,176 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-15 03:22:53,177 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-15 03:22:53,177 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-15 03:22:53,177 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-15 03:22:53,177 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-15 03:22:53,177 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:22:53,178 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:22:53,178 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-15 03:22:53,178 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:22:53,178 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:22:53,179 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:22:53,179 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:22:53,179 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:22:53,179 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:22:53,180 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:22:53,180 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:22:53,180 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:22:53,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:22:53,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:22:53,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:22:53,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:22:53,181 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:22:53,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:22:53,181 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:22:53,181 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:22:53,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:22:53,181 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:22:53,182 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:22:53,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:22:53,182 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:22:53,182 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-15 03:22:53,182 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-15 03:22:53,182 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-15 03:22:53,183 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-15 03:22:53,183 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-15 03:22:53,183 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-15 03:22:53,183 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-15 03:22:53,183 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-15 03:22:53,183 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-15 03:22:53,184 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-15 03:22:53,184 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2019-10-15 03:22:53,184 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-15 03:22:53,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:22:53,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:22:53,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:22:54,970 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:22:54,970 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-15 03:22:54,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:22:54 BoogieIcfgContainer [2019-10-15 03:22:54,972 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:22:54,973 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:22:54,974 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:22:54,977 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:22:54,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:22:52" (1/3) ... [2019-10-15 03:22:54,978 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37e397e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:22:54, skipping insertion in model container [2019-10-15 03:22:54,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:52" (2/3) ... [2019-10-15 03:22:54,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37e397e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:22:54, skipping insertion in model container [2019-10-15 03:22:54,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:22:54" (3/3) ... [2019-10-15 03:22:54,981 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product42.cil.c [2019-10-15 03:22:54,993 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:22:55,003 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:22:55,019 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:22:55,057 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:22:55,057 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:22:55,057 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:22:55,057 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:22:55,057 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:22:55,057 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:22:55,058 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:22:55,058 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:22:55,095 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states. [2019-10-15 03:22:55,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-15 03:22:55,111 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:22:55,112 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 03:22:55,118 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:22:55,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:22:55,128 INFO L82 PathProgramCache]: Analyzing trace with hash 1536710141, now seen corresponding path program 1 times [2019-10-15 03:22:55,141 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:22:55,141 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275199081] [2019-10-15 03:22:55,142 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:55,142 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:55,142 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:22:55,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:22:55,639 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 03:22:55,644 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275199081] [2019-10-15 03:22:55,646 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:22:55,647 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:22:55,647 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627056320] [2019-10-15 03:22:55,653 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:22:55,654 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:22:55,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:22:55,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:22:55,672 INFO L87 Difference]: Start difference. First operand 146 states. Second operand 2 states. [2019-10-15 03:22:55,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:22:55,748 INFO L93 Difference]: Finished difference Result 222 states and 265 transitions. [2019-10-15 03:22:55,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:22:55,750 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2019-10-15 03:22:55,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:22:55,766 INFO L225 Difference]: With dead ends: 222 [2019-10-15 03:22:55,766 INFO L226 Difference]: Without dead ends: 113 [2019-10-15 03:22:55,778 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 03:22:55,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2019-10-15 03:22:55,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2019-10-15 03:22:55,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-10-15 03:22:55,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 128 transitions. [2019-10-15 03:22:55,860 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 128 transitions. Word has length 52 [2019-10-15 03:22:55,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:22:55,861 INFO L462 AbstractCegarLoop]: Abstraction has 113 states and 128 transitions. [2019-10-15 03:22:55,861 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:22:55,861 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 128 transitions. [2019-10-15 03:22:55,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-10-15 03:22:55,867 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:22:55,867 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 03:22:55,867 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:22:55,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:22:55,869 INFO L82 PathProgramCache]: Analyzing trace with hash -1784540898, now seen corresponding path program 1 times [2019-10-15 03:22:55,869 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:22:55,869 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935833343] [2019-10-15 03:22:55,870 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:55,870 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:55,870 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:22:55,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:22:56,001 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 03:22:56,002 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935833343] [2019-10-15 03:22:56,002 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:22:56,002 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:22:56,003 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532545779] [2019-10-15 03:22:56,004 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:22:56,005 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:22:56,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:22:56,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:22:56,006 INFO L87 Difference]: Start difference. First operand 113 states and 128 transitions. Second operand 3 states. [2019-10-15 03:22:56,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:22:56,026 INFO L93 Difference]: Finished difference Result 176 states and 199 transitions. [2019-10-15 03:22:56,027 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:22:56,027 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2019-10-15 03:22:56,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:22:56,029 INFO L225 Difference]: With dead ends: 176 [2019-10-15 03:22:56,030 INFO L226 Difference]: Without dead ends: 105 [2019-10-15 03:22:56,031 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 03:22:56,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2019-10-15 03:22:56,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2019-10-15 03:22:56,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2019-10-15 03:22:56,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 117 transitions. [2019-10-15 03:22:56,045 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 117 transitions. Word has length 53 [2019-10-15 03:22:56,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:22:56,045 INFO L462 AbstractCegarLoop]: Abstraction has 105 states and 117 transitions. [2019-10-15 03:22:56,046 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:22:56,046 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 117 transitions. [2019-10-15 03:22:56,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-10-15 03:22:56,048 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:22:56,048 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 03:22:56,048 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:22:56,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:22:56,049 INFO L82 PathProgramCache]: Analyzing trace with hash -726809232, now seen corresponding path program 1 times [2019-10-15 03:22:56,050 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:22:56,051 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060964032] [2019-10-15 03:22:56,051 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:56,051 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:56,051 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:22:56,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:22:56,217 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 03:22:56,218 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060964032] [2019-10-15 03:22:56,218 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:22:56,220 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:22:56,220 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304897018] [2019-10-15 03:22:56,220 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:22:56,221 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:22:56,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:22:56,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:22:56,221 INFO L87 Difference]: Start difference. First operand 105 states and 117 transitions. Second operand 7 states. [2019-10-15 03:22:56,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:22:56,526 INFO L93 Difference]: Finished difference Result 185 states and 210 transitions. [2019-10-15 03:22:56,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 03:22:56,527 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-10-15 03:22:56,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:22:56,529 INFO L225 Difference]: With dead ends: 185 [2019-10-15 03:22:56,529 INFO L226 Difference]: Without dead ends: 105 [2019-10-15 03:22:56,530 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 03:22:56,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2019-10-15 03:22:56,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2019-10-15 03:22:56,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2019-10-15 03:22:56,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 116 transitions. [2019-10-15 03:22:56,541 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 116 transitions. Word has length 56 [2019-10-15 03:22:56,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:22:56,545 INFO L462 AbstractCegarLoop]: Abstraction has 105 states and 116 transitions. [2019-10-15 03:22:56,545 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:22:56,545 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 116 transitions. [2019-10-15 03:22:56,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-10-15 03:22:56,551 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:22:56,551 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] [2019-10-15 03:22:56,551 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:22:56,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:22:56,552 INFO L82 PathProgramCache]: Analyzing trace with hash -334964111, now seen corresponding path program 1 times [2019-10-15 03:22:56,552 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:22:56,552 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061596158] [2019-10-15 03:22:56,552 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:56,552 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:56,552 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:22:56,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:22:56,641 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 03:22:56,641 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061596158] [2019-10-15 03:22:56,642 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:22:56,642 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 03:22:56,642 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210344586] [2019-10-15 03:22:56,642 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 03:22:56,643 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:22:56,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 03:22:56,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 03:22:56,643 INFO L87 Difference]: Start difference. First operand 105 states and 116 transitions. Second operand 5 states. [2019-10-15 03:22:57,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:22:57,097 INFO L93 Difference]: Finished difference Result 270 states and 316 transitions. [2019-10-15 03:22:57,101 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 03:22:57,101 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 64 [2019-10-15 03:22:57,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:22:57,104 INFO L225 Difference]: With dead ends: 270 [2019-10-15 03:22:57,104 INFO L226 Difference]: Without dead ends: 190 [2019-10-15 03:22:57,105 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 03:22:57,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2019-10-15 03:22:57,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 173. [2019-10-15 03:22:57,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2019-10-15 03:22:57,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 194 transitions. [2019-10-15 03:22:57,149 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 194 transitions. Word has length 64 [2019-10-15 03:22:57,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:22:57,150 INFO L462 AbstractCegarLoop]: Abstraction has 173 states and 194 transitions. [2019-10-15 03:22:57,150 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 03:22:57,151 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 194 transitions. [2019-10-15 03:22:57,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-10-15 03:22:57,154 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:22:57,154 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] [2019-10-15 03:22:57,156 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:22:57,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:22:57,157 INFO L82 PathProgramCache]: Analyzing trace with hash -574106843, now seen corresponding path program 1 times [2019-10-15 03:22:57,157 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:22:57,158 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707992095] [2019-10-15 03:22:57,158 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:57,158 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:57,158 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:22:57,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:22:57,345 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 03:22:57,346 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707992095] [2019-10-15 03:22:57,347 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:22:57,347 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:22:57,379 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61497182] [2019-10-15 03:22:57,380 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:22:57,380 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:22:57,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:22:57,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:22:57,381 INFO L87 Difference]: Start difference. First operand 173 states and 194 transitions. Second operand 7 states. [2019-10-15 03:22:57,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:22:57,899 INFO L93 Difference]: Finished difference Result 337 states and 390 transitions. [2019-10-15 03:22:57,900 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 03:22:57,900 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 73 [2019-10-15 03:22:57,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:22:57,902 INFO L225 Difference]: With dead ends: 337 [2019-10-15 03:22:57,902 INFO L226 Difference]: Without dead ends: 189 [2019-10-15 03:22:57,904 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-15 03:22:57,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2019-10-15 03:22:57,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 172. [2019-10-15 03:22:57,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2019-10-15 03:22:57,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 191 transitions. [2019-10-15 03:22:57,922 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 191 transitions. Word has length 73 [2019-10-15 03:22:57,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:22:57,923 INFO L462 AbstractCegarLoop]: Abstraction has 172 states and 191 transitions. [2019-10-15 03:22:57,923 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:22:57,923 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 191 transitions. [2019-10-15 03:22:57,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-10-15 03:22:57,924 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:22:57,924 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, 1, 1, 1, 1, 1] [2019-10-15 03:22:57,925 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:22:57,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:22:57,925 INFO L82 PathProgramCache]: Analyzing trace with hash 158832633, now seen corresponding path program 1 times [2019-10-15 03:22:57,925 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:22:57,925 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593174762] [2019-10-15 03:22:57,926 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:57,926 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:57,926 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:22:57,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:22:58,131 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 03:22:58,131 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593174762] [2019-10-15 03:22:58,132 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:22:58,133 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-15 03:22:58,133 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594353597] [2019-10-15 03:22:58,133 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-15 03:22:58,134 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:22:58,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-15 03:22:58,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2019-10-15 03:22:58,135 INFO L87 Difference]: Start difference. First operand 172 states and 191 transitions. Second operand 12 states. [2019-10-15 03:22:58,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:22:58,918 INFO L93 Difference]: Finished difference Result 458 states and 526 transitions. [2019-10-15 03:22:58,919 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-15 03:22:58,919 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 86 [2019-10-15 03:22:58,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:22:58,923 INFO L225 Difference]: With dead ends: 458 [2019-10-15 03:22:58,923 INFO L226 Difference]: Without dead ends: 311 [2019-10-15 03:22:58,925 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 03:22:58,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2019-10-15 03:22:58,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 302. [2019-10-15 03:22:58,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2019-10-15 03:22:58,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 344 transitions. [2019-10-15 03:22:58,956 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 344 transitions. Word has length 86 [2019-10-15 03:22:58,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:22:58,957 INFO L462 AbstractCegarLoop]: Abstraction has 302 states and 344 transitions. [2019-10-15 03:22:58,957 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-15 03:22:58,957 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 344 transitions. [2019-10-15 03:22:58,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-10-15 03:22:58,958 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:22:58,959 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:22:58,959 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:22:58,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:22:58,959 INFO L82 PathProgramCache]: Analyzing trace with hash -1598295685, now seen corresponding path program 1 times [2019-10-15 03:22:58,960 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:22:58,960 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651842929] [2019-10-15 03:22:58,960 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:58,960 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:58,960 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:22:59,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:22:59,127 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 03:22:59,127 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651842929] [2019-10-15 03:22:59,127 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:22:59,128 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-15 03:22:59,128 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654034675] [2019-10-15 03:22:59,128 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 03:22:59,129 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:22:59,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 03:22:59,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-15 03:22:59,129 INFO L87 Difference]: Start difference. First operand 302 states and 344 transitions. Second operand 9 states. [2019-10-15 03:23:00,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:23:00,086 INFO L93 Difference]: Finished difference Result 940 states and 1100 transitions. [2019-10-15 03:23:00,090 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-15 03:23:00,090 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 89 [2019-10-15 03:23:00,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:23:00,095 INFO L225 Difference]: With dead ends: 940 [2019-10-15 03:23:00,096 INFO L226 Difference]: Without dead ends: 719 [2019-10-15 03:23:00,097 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 03:23:00,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2019-10-15 03:23:00,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 619. [2019-10-15 03:23:00,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 619 states. [2019-10-15 03:23:00,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 711 transitions. [2019-10-15 03:23:00,146 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 711 transitions. Word has length 89 [2019-10-15 03:23:00,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:23:00,147 INFO L462 AbstractCegarLoop]: Abstraction has 619 states and 711 transitions. [2019-10-15 03:23:00,147 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 03:23:00,147 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 711 transitions. [2019-10-15 03:23:00,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2019-10-15 03:23:00,149 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:23:00,151 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:23:00,152 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:23:00,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:23:00,153 INFO L82 PathProgramCache]: Analyzing trace with hash 30443821, now seen corresponding path program 1 times [2019-10-15 03:23:00,154 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:23:00,154 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377956640] [2019-10-15 03:23:00,155 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:00,155 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:00,155 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:23:00,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:23:00,329 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-10-15 03:23:00,330 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377956640] [2019-10-15 03:23:00,330 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [665438004] [2019-10-15 03:23:00,330 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 03:23:00,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:23:00,560 INFO L256 TraceCheckSpWp]: Trace formula consists of 893 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 03:23:00,572 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:23:00,735 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 21 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:23:00,735 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:23:01,161 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-10-15 03:23:01,161 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1724373857] [2019-10-15 03:23:01,198 INFO L162 IcfgInterpreter]: Started Sifa with 98 locations of interest [2019-10-15 03:23:01,198 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:23:01,208 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:23:01,216 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:23:01,217 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 03:23:09,184 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2019-10-15 03:23:11,024 WARN L191 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-15 03:23:11,136 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-15 03:23:11,329 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-15 03:23:11,445 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-15 03:23:11,664 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:11,858 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:12,044 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:12,186 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:12,506 WARN L191 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 546 DAG size of output: 544 [2019-10-15 03:23:12,670 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:12,909 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:13,054 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:13,166 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:13,175 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 187 for LOIs [2019-10-15 03:23:13,441 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 513 [2019-10-15 03:23:13,442 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 546 for LOIs [2019-10-15 03:23:13,596 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:13,717 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:13,846 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:13,992 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:14,101 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:14,280 WARN L191 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:14,406 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:14,627 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:14,950 WARN L191 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 546 [2019-10-15 03:23:15,073 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:15,212 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:15,542 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:15,675 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:15,905 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:16,220 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:16,339 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:16,631 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:16,738 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:16,845 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:16,964 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:17,192 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:17,309 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:17,618 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:17,939 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:18,250 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:18,381 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:18,491 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:18,631 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:18,915 WARN L191 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:23:19,047 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:19,171 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:19,281 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:19,392 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:19,512 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:19,649 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:19,773 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:19,995 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:20,264 WARN L191 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-15 03:23:20,376 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:20,502 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:20,703 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-15 03:23:20,825 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:20,971 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:21,093 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:23:21,204 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:23:21,333 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:21,446 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:21,558 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:21,685 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-15 03:23:21,819 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:21,936 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:22,063 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-15 03:23:22,282 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 568 [2019-10-15 03:23:22,394 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:22,525 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-15 03:23:22,637 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:22,749 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:22,873 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-15 03:23:23,124 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:23:23,237 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:23,369 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:23,568 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:23:23,678 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:23,807 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:23,919 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:24,029 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:24,152 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:24,384 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-15 03:23:24,498 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:24,636 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:24,852 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-15 03:23:24,964 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:23:25,090 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:25,313 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-15 03:23:25,425 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:23:25,549 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:25,758 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 575 DAG size of output: 568 [2019-10-15 03:23:25,883 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:26,014 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:26,209 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 577 DAG size of output: 570 [2019-10-15 03:23:26,323 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-15 03:23:26,494 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-15 03:23:26,707 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:23:26,819 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:26,944 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:27,141 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:23:27,251 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:27,372 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:27,488 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:27,608 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:27,727 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:27,938 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:23:28,049 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:28,177 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:28,376 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:23:28,486 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:28,607 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:28,722 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:28,832 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:28,973 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:29,185 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-15 03:23:29,303 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:29,429 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:29,636 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-15 03:23:29,785 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:29,923 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:30,131 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:23:30,241 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:30,369 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:30,568 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:23:30,680 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:30,803 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:31,142 WARN L191 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:23:31,258 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:31,380 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:31,652 WARN L191 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:23:31,764 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:31,886 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:31,996 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:32,105 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:32,224 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:32,435 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-15 03:23:32,556 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:32,683 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568