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_spec2_product52.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:20:02,937 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:20:02,939 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:20:02,957 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:20:02,958 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:20:02,960 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:20:02,962 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:20:02,971 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:20:02,973 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:20:02,975 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:20:02,976 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:20:02,977 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:20:02,977 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:20:02,978 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:20:02,982 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:20:02,984 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:20:02,985 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:20:02,988 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:20:02,990 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:20:02,993 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:20:02,994 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:20:02,995 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:20:02,996 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:20:02,997 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:20:02,999 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:20:02,999 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:20:03,000 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:20:03,001 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:20:03,001 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:20:03,002 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:20:03,002 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:20:03,003 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:20:03,003 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:20:03,004 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:20:03,005 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:20:03,005 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:20:03,006 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:20:03,006 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:20:03,007 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:20:03,007 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:20:03,008 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:20:03,009 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 03:20:03,023 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:20:03,023 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:20:03,024 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:20:03,024 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:20:03,025 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:20:03,025 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:20:03,025 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:20:03,025 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:20:03,026 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:20:03,026 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:20:03,026 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:20:03,026 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:20:03,026 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:20:03,026 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:20:03,027 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:20:03,027 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:20:03,027 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:20:03,027 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:20:03,028 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:20:03,028 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:20:03,028 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:20:03,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:20:03,028 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:20:03,029 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:20:03,029 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:20:03,029 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:20:03,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:20:03,029 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:20:03,029 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 03:20:03,308 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:20:03,322 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:20:03,328 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:20:03,330 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:20:03,330 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:20:03,331 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product52.cil.c [2019-10-15 03:20:03,409 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f099439f/b27ec392eb7848969aa3a980c411088c/FLAG0c13704b7 [2019-10-15 03:20:03,976 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:20:03,976 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product52.cil.c [2019-10-15 03:20:03,990 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f099439f/b27ec392eb7848969aa3a980c411088c/FLAG0c13704b7 [2019-10-15 03:20:04,256 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f099439f/b27ec392eb7848969aa3a980c411088c [2019-10-15 03:20:04,268 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:20:04,270 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:20:04,271 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:20:04,271 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:20:04,276 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:20:04,276 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:20:04" (1/1) ... [2019-10-15 03:20:04,279 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d641b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:20:04, skipping insertion in model container [2019-10-15 03:20:04,279 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:20:04" (1/1) ... [2019-10-15 03:20:04,286 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:20:04,343 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:20:04,852 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:20:04,869 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:20:04,950 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:20:04,985 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:20:04,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:20:04 WrapperNode [2019-10-15 03:20:04,986 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:20:04,987 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:20:04,987 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:20:04,987 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:20:04,998 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:20:04" (1/1) ... [2019-10-15 03:20:04,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:20:04" (1/1) ... [2019-10-15 03:20:05,018 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:20:04" (1/1) ... [2019-10-15 03:20:05,018 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:20:04" (1/1) ... [2019-10-15 03:20:05,060 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:20:04" (1/1) ... [2019-10-15 03:20:05,071 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:20:04" (1/1) ... [2019-10-15 03:20:05,077 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:20:04" (1/1) ... [2019-10-15 03:20:05,084 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:20:05,085 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:20:05,085 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:20:05,085 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:20:05,086 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:20:04" (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 03:20:05,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:20:05,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:20:05,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:20:05,155 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:20:05,155 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-15 03:20:05,155 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-15 03:20:05,155 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-15 03:20:05,156 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-15 03:20:05,156 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-15 03:20:05,156 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-15 03:20:05,156 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-15 03:20:05,156 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-15 03:20:05,157 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-15 03:20:05,157 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-15 03:20:05,157 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-15 03:20:05,157 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-15 03:20:05,157 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-15 03:20:05,157 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-15 03:20:05,158 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-15 03:20:05,158 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:20:05,158 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-15 03:20:05,158 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:20:05,158 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-10-15 03:20:05,158 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-10-15 03:20:05,159 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:20:05,159 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:20:05,159 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:20:05,159 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:20:05,159 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-15 03:20:05,160 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-15 03:20:05,160 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-15 03:20:05,160 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-15 03:20:05,160 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-15 03:20:05,160 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-15 03:20:05,160 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-15 03:20:05,161 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-15 03:20:05,161 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:20:05,161 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:20:05,161 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:20:05,161 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:20:05,161 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:20:05,161 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:20:05,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:20:05,162 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:20:05,162 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:20:05,162 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:20:05,162 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-15 03:20:05,162 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-15 03:20:05,163 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-15 03:20:05,163 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-15 03:20:05,163 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-15 03:20:05,163 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-15 03:20:05,163 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:20:05,164 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-15 03:20:05,164 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-15 03:20:05,164 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-15 03:20:05,164 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-15 03:20:05,164 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-15 03:20:05,164 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-15 03:20:05,165 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-15 03:20:05,165 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-15 03:20:05,165 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-15 03:20:05,165 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-10-15 03:20:05,165 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-15 03:20:05,165 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-15 03:20:05,166 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-15 03:20:05,166 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-15 03:20:05,166 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-15 03:20:05,166 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-15 03:20:05,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:20:05,167 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-15 03:20:05,167 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:20:05,167 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-10-15 03:20:05,167 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-15 03:20:05,167 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:20:05,167 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:20:05,168 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:20:05,168 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:20:05,168 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:20:05,168 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:20:05,168 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-15 03:20:05,168 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:20:05,169 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:20:05,169 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:20:05,169 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:20:05,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:20:05,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:20:05,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:20:05,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:20:05,170 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:20:05,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:20:05,170 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:20:05,170 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:20:05,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:20:05,171 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:20:05,171 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:20:05,171 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:20:05,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:20:05,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:20:05,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:20:06,962 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:20:06,962 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-15 03:20:06,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:20:06 BoogieIcfgContainer [2019-10-15 03:20:06,964 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:20:06,965 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:20:06,965 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:20:06,969 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:20:06,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:20:04" (1/3) ... [2019-10-15 03:20:06,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38de050c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:20:06, skipping insertion in model container [2019-10-15 03:20:06,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:20:04" (2/3) ... [2019-10-15 03:20:06,971 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38de050c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:20:06, skipping insertion in model container [2019-10-15 03:20:06,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:20:06" (3/3) ... [2019-10-15 03:20:06,973 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product52.cil.c [2019-10-15 03:20:06,983 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:20:06,992 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:20:07,005 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:20:07,036 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:20:07,036 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:20:07,036 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:20:07,036 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:20:07,037 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:20:07,037 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:20:07,038 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:20:07,038 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:20:07,072 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states. [2019-10-15 03:20:07,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-15 03:20:07,088 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:20:07,089 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:20:07,093 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:20:07,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:20:07,100 INFO L82 PathProgramCache]: Analyzing trace with hash 96100431, now seen corresponding path program 1 times [2019-10-15 03:20:07,111 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:20:07,112 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670348489] [2019-10-15 03:20:07,113 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:20:07,116 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:20:07,117 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:20:07,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:20:07,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:20:07,530 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670348489] [2019-10-15 03:20:07,531 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:20:07,531 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:20:07,532 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000012317] [2019-10-15 03:20:07,537 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:20:07,537 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:20:07,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:20:07,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:20:07,553 INFO L87 Difference]: Start difference. First operand 155 states. Second operand 2 states. [2019-10-15 03:20:07,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:20:07,596 INFO L93 Difference]: Finished difference Result 236 states and 287 transitions. [2019-10-15 03:20:07,596 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:20:07,598 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-10-15 03:20:07,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:20:07,613 INFO L225 Difference]: With dead ends: 236 [2019-10-15 03:20:07,613 INFO L226 Difference]: Without dead ends: 120 [2019-10-15 03:20:07,618 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 03:20:07,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2019-10-15 03:20:07,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2019-10-15 03:20:07,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2019-10-15 03:20:07,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 139 transitions. [2019-10-15 03:20:07,681 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 139 transitions. Word has length 46 [2019-10-15 03:20:07,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:20:07,683 INFO L462 AbstractCegarLoop]: Abstraction has 120 states and 139 transitions. [2019-10-15 03:20:07,684 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:20:07,684 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 139 transitions. [2019-10-15 03:20:07,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-15 03:20:07,689 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:20:07,689 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:20:07,690 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:20:07,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:20:07,692 INFO L82 PathProgramCache]: Analyzing trace with hash -960704892, now seen corresponding path program 1 times [2019-10-15 03:20:07,692 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:20:07,693 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464949637] [2019-10-15 03:20:07,693 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:20:07,693 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:20:07,693 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:20:07,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:20:07,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:20:07,855 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464949637] [2019-10-15 03:20:07,856 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:20:07,856 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:20:07,856 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958886005] [2019-10-15 03:20:07,859 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:20:07,859 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:20:07,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:20:07,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:20:07,860 INFO L87 Difference]: Start difference. First operand 120 states and 139 transitions. Second operand 3 states. [2019-10-15 03:20:07,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:20:07,895 INFO L93 Difference]: Finished difference Result 184 states and 212 transitions. [2019-10-15 03:20:07,896 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:20:07,896 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-10-15 03:20:07,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:20:07,898 INFO L225 Difference]: With dead ends: 184 [2019-10-15 03:20:07,898 INFO L226 Difference]: Without dead ends: 112 [2019-10-15 03:20:07,900 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 03:20:07,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2019-10-15 03:20:07,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2019-10-15 03:20:07,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2019-10-15 03:20:07,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 128 transitions. [2019-10-15 03:20:07,918 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 128 transitions. Word has length 47 [2019-10-15 03:20:07,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:20:07,919 INFO L462 AbstractCegarLoop]: Abstraction has 112 states and 128 transitions. [2019-10-15 03:20:07,919 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:20:07,919 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 128 transitions. [2019-10-15 03:20:07,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-15 03:20:07,921 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:20:07,922 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:20:07,922 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:20:07,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:20:07,922 INFO L82 PathProgramCache]: Analyzing trace with hash -677168152, now seen corresponding path program 1 times [2019-10-15 03:20:07,923 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:20:07,923 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409596101] [2019-10-15 03:20:07,923 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:20:07,923 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:20:07,924 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:20:07,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:20:08,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:20:08,092 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409596101] [2019-10-15 03:20:08,093 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:20:08,093 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:20:08,093 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094739652] [2019-10-15 03:20:08,096 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:20:08,096 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:20:08,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:20:08,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:20:08,097 INFO L87 Difference]: Start difference. First operand 112 states and 128 transitions. Second operand 7 states. [2019-10-15 03:20:08,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:20:08,640 INFO L93 Difference]: Finished difference Result 332 states and 396 transitions. [2019-10-15 03:20:08,640 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 03:20:08,640 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2019-10-15 03:20:08,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:20:08,646 INFO L225 Difference]: With dead ends: 332 [2019-10-15 03:20:08,646 INFO L226 Difference]: Without dead ends: 245 [2019-10-15 03:20:08,649 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 03:20:08,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2019-10-15 03:20:08,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 233. [2019-10-15 03:20:08,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2019-10-15 03:20:08,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 277 transitions. [2019-10-15 03:20:08,711 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 277 transitions. Word has length 51 [2019-10-15 03:20:08,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:20:08,712 INFO L462 AbstractCegarLoop]: Abstraction has 233 states and 277 transitions. [2019-10-15 03:20:08,712 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:20:08,712 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 277 transitions. [2019-10-15 03:20:08,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-10-15 03:20:08,715 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:20:08,715 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:20:08,715 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:20:08,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:20:08,716 INFO L82 PathProgramCache]: Analyzing trace with hash 2047593831, now seen corresponding path program 1 times [2019-10-15 03:20:08,716 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:20:08,716 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757124362] [2019-10-15 03:20:08,716 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:20:08,717 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:20:08,717 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:20:08,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:20:08,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:20:08,860 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757124362] [2019-10-15 03:20:08,860 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:20:08,860 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 03:20:08,860 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684902905] [2019-10-15 03:20:08,861 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 03:20:08,862 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:20:08,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 03:20:08,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 03:20:08,863 INFO L87 Difference]: Start difference. First operand 233 states and 277 transitions. Second operand 6 states. [2019-10-15 03:20:09,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:20:09,107 INFO L93 Difference]: Finished difference Result 631 states and 768 transitions. [2019-10-15 03:20:09,108 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 03:20:09,108 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 55 [2019-10-15 03:20:09,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:20:09,118 INFO L225 Difference]: With dead ends: 631 [2019-10-15 03:20:09,118 INFO L226 Difference]: Without dead ends: 423 [2019-10-15 03:20:09,123 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-15 03:20:09,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2019-10-15 03:20:09,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 411. [2019-10-15 03:20:09,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 411 states. [2019-10-15 03:20:09,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 491 transitions. [2019-10-15 03:20:09,193 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 491 transitions. Word has length 55 [2019-10-15 03:20:09,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:20:09,193 INFO L462 AbstractCegarLoop]: Abstraction has 411 states and 491 transitions. [2019-10-15 03:20:09,193 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 03:20:09,194 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 491 transitions. [2019-10-15 03:20:09,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-10-15 03:20:09,197 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:20:09,197 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:20:09,197 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:20:09,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:20:09,198 INFO L82 PathProgramCache]: Analyzing trace with hash 795424947, now seen corresponding path program 1 times [2019-10-15 03:20:09,198 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:20:09,198 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642244586] [2019-10-15 03:20:09,198 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:20:09,199 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:20:09,199 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:20:09,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:20:09,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:20:09,334 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642244586] [2019-10-15 03:20:09,334 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:20:09,334 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:20:09,335 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379059415] [2019-10-15 03:20:09,336 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:20:09,336 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:20:09,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:20:09,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:20:09,338 INFO L87 Difference]: Start difference. First operand 411 states and 491 transitions. Second operand 7 states. [2019-10-15 03:20:09,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:20:09,976 INFO L93 Difference]: Finished difference Result 1091 states and 1426 transitions. [2019-10-15 03:20:09,976 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 03:20:09,976 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 58 [2019-10-15 03:20:09,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:20:09,982 INFO L225 Difference]: With dead ends: 1091 [2019-10-15 03:20:09,982 INFO L226 Difference]: Without dead ends: 705 [2019-10-15 03:20:09,984 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-15 03:20:09,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2019-10-15 03:20:10,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 616. [2019-10-15 03:20:10,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 616 states. [2019-10-15 03:20:10,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 736 transitions. [2019-10-15 03:20:10,042 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 736 transitions. Word has length 58 [2019-10-15 03:20:10,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:20:10,043 INFO L462 AbstractCegarLoop]: Abstraction has 616 states and 736 transitions. [2019-10-15 03:20:10,043 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:20:10,043 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 736 transitions. [2019-10-15 03:20:10,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2019-10-15 03:20:10,046 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:20:10,046 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:20:10,047 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:20:10,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:20:10,047 INFO L82 PathProgramCache]: Analyzing trace with hash 315567280, now seen corresponding path program 1 times [2019-10-15 03:20:10,047 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:20:10,048 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022232007] [2019-10-15 03:20:10,048 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:20:10,048 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:20:10,048 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:20:10,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:20:10,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:20:10,144 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022232007] [2019-10-15 03:20:10,144 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:20:10,144 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:20:10,145 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855687048] [2019-10-15 03:20:10,145 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:20:10,145 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:20:10,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:20:10,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:20:10,146 INFO L87 Difference]: Start difference. First operand 616 states and 736 transitions. Second operand 3 states. [2019-10-15 03:20:10,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:20:10,204 INFO L93 Difference]: Finished difference Result 867 states and 1062 transitions. [2019-10-15 03:20:10,204 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:20:10,204 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 76 [2019-10-15 03:20:10,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:20:10,209 INFO L225 Difference]: With dead ends: 867 [2019-10-15 03:20:10,209 INFO L226 Difference]: Without dead ends: 864 [2019-10-15 03:20:10,210 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 03:20:10,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2019-10-15 03:20:10,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 824. [2019-10-15 03:20:10,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 824 states. [2019-10-15 03:20:10,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 1009 transitions. [2019-10-15 03:20:10,270 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 1009 transitions. Word has length 76 [2019-10-15 03:20:10,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:20:10,271 INFO L462 AbstractCegarLoop]: Abstraction has 824 states and 1009 transitions. [2019-10-15 03:20:10,271 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:20:10,271 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1009 transitions. [2019-10-15 03:20:10,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2019-10-15 03:20:10,276 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:20:10,276 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:20:10,276 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:20:10,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:20:10,277 INFO L82 PathProgramCache]: Analyzing trace with hash -1697203389, now seen corresponding path program 1 times [2019-10-15 03:20:10,277 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:20:10,277 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933894572] [2019-10-15 03:20:10,277 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:20:10,277 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:20:10,278 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:20:10,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:20:10,511 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-15 03:20:10,512 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933894572] [2019-10-15 03:20:10,512 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780376752] [2019-10-15 03:20:10,512 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 03:20:10,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:20:10,764 INFO L256 TraceCheckSpWp]: Trace formula consists of 893 conjuncts, 33 conjunts are in the unsatisfiable core [2019-10-15 03:20:10,787 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:20:11,146 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:20:11,147 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:20:11,243 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:20:11,316 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:20:11,316 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:20:12,046 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:20:12,624 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:20:12,625 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:20:12,625 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:20:12,651 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:20:12,924 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-15 03:20:12,924 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 03:20:12,925 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [14, 13] total 35 [2019-10-15 03:20:12,925 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854890025] [2019-10-15 03:20:12,925 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-15 03:20:12,926 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:20:12,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-15 03:20:12,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=1039, Unknown=0, NotChecked=0, Total=1190 [2019-10-15 03:20:12,927 INFO L87 Difference]: Start difference. First operand 824 states and 1009 transitions. Second operand 14 states. [2019-10-15 03:20:15,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:20:15,316 INFO L93 Difference]: Finished difference Result 2317 states and 2953 transitions. [2019-10-15 03:20:15,317 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-10-15 03:20:15,317 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 129 [2019-10-15 03:20:15,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:20:15,328 INFO L225 Difference]: With dead ends: 2317 [2019-10-15 03:20:15,328 INFO L226 Difference]: Without dead ends: 1518 [2019-10-15 03:20:15,333 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 235 SyntacticMatches, 8 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 818 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=386, Invalid=2476, Unknown=0, NotChecked=0, Total=2862 [2019-10-15 03:20:15,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1518 states. [2019-10-15 03:20:15,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1518 to 1409. [2019-10-15 03:20:15,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1409 states. [2019-10-15 03:20:15,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1409 states to 1409 states and 1737 transitions. [2019-10-15 03:20:15,494 INFO L78 Accepts]: Start accepts. Automaton has 1409 states and 1737 transitions. Word has length 129 [2019-10-15 03:20:15,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:20:15,495 INFO L462 AbstractCegarLoop]: Abstraction has 1409 states and 1737 transitions. [2019-10-15 03:20:15,495 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-15 03:20:15,495 INFO L276 IsEmpty]: Start isEmpty. Operand 1409 states and 1737 transitions. [2019-10-15 03:20:15,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2019-10-15 03:20:15,502 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:20:15,502 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-15 03:20:15,708 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:20:15,708 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:20:15,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:20:15,709 INFO L82 PathProgramCache]: Analyzing trace with hash 30992745, now seen corresponding path program 1 times [2019-10-15 03:20:15,710 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:20:15,710 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365531511] [2019-10-15 03:20:15,711 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:20:15,711 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:20:15,712 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:20:15,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:20:15,863 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 21 proven. 5 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-15 03:20:15,864 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365531511] [2019-10-15 03:20:15,864 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1375876207] [2019-10-15 03:20:15,864 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:20:16,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:20:16,087 INFO L256 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-15 03:20:16,097 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:20:16,127 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:20:16,127 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:20:16,289 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 21 proven. 5 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-15 03:20:16,290 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 03:20:16,290 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 3] total 8 [2019-10-15 03:20:16,290 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752990519] [2019-10-15 03:20:16,291 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:20:16,291 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:20:16,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:20:16,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-15 03:20:16,292 INFO L87 Difference]: Start difference. First operand 1409 states and 1737 transitions. Second operand 3 states. [2019-10-15 03:20:16,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:20:16,436 INFO L93 Difference]: Finished difference Result 2730 states and 3381 transitions. [2019-10-15 03:20:16,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:20:16,436 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 129 [2019-10-15 03:20:16,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:20:16,446 INFO L225 Difference]: With dead ends: 2730 [2019-10-15 03:20:16,446 INFO L226 Difference]: Without dead ends: 1346 [2019-10-15 03:20:16,452 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 258 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-15 03:20:16,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1346 states. [2019-10-15 03:20:16,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1346 to 1325. [2019-10-15 03:20:16,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1325 states. [2019-10-15 03:20:16,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1325 states to 1325 states and 1534 transitions. [2019-10-15 03:20:16,577 INFO L78 Accepts]: Start accepts. Automaton has 1325 states and 1534 transitions. Word has length 129 [2019-10-15 03:20:16,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:20:16,580 INFO L462 AbstractCegarLoop]: Abstraction has 1325 states and 1534 transitions. [2019-10-15 03:20:16,580 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:20:16,580 INFO L276 IsEmpty]: Start isEmpty. Operand 1325 states and 1534 transitions. [2019-10-15 03:20:16,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-10-15 03:20:16,586 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:20:16,586 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:20:16,791 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:20:16,791 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:20:16,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:20:16,792 INFO L82 PathProgramCache]: Analyzing trace with hash 1739006106, now seen corresponding path program 1 times [2019-10-15 03:20:16,792 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:20:16,792 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924271774] [2019-10-15 03:20:16,793 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:20:16,793 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:20:16,793 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:20:16,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:20:17,194 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:20:17,195 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924271774] [2019-10-15 03:20:17,195 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [27886431] [2019-10-15 03:20:17,195 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:20:17,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:20:17,414 INFO L256 TraceCheckSpWp]: Trace formula consists of 899 conjuncts, 56 conjunts are in the unsatisfiable core [2019-10-15 03:20:17,426 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:20:17,521 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:20:17,559 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:20:17,712 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 21 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:20:17,712 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:20:18,083 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:20:18,128 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:20:18,130 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:20:18,251 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:20:18,252 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:20:18,372 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:20:18,386 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:20:18,472 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:20:18,473 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:20:18,518 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:20:18,677 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:20:18,678 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [511764107] [2019-10-15 03:20:18,715 INFO L162 IcfgInterpreter]: Started Sifa with 100 locations of interest [2019-10-15 03:20:18,715 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:20:18,723 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:20:18,743 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:20:18,744 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 03:20:29,130 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2019-10-15 03:20:30,732 WARN L191 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-15 03:20:30,858 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-15 03:20:30,971 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-15 03:20:31,081 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-15 03:20:31,333 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:20:31,605 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:20:31,846 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:20:32,059 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:20:32,375 WARN L191 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 546 DAG size of output: 544 [2019-10-15 03:20:32,609 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:20:32,818 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:20:32,967 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:20:33,080 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:20:33,196 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 187 for LOIs [2019-10-15 03:20:33,489 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 513 [2019-10-15 03:20:33,490 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 546 for LOIs [2019-10-15 03:20:33,635 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:20:33,749 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:20:33,880 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:33,998 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:20:34,155 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:20:34,281 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:34,503 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:20:34,635 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:34,873 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 546 [2019-10-15 03:20:34,983 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:20:35,130 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:35,445 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:35,681 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:20:35,801 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:36,127 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:36,231 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:20:36,470 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:36,788 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:37,102 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:37,313 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:20:37,460 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:37,772 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:38,082 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:38,259 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:38,388 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:38,508 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:38,708 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:20:38,816 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:38,942 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:39,050 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:39,172 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:39,310 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:39,489 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:20:39,601 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:20:39,723 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:20:39,858 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:20:39,975 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:20:40,099 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:20:40,211 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:20:40,325 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:20:40,448 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:20:40,595 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-15 03:20:40,707 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-15 03:20:40,831 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-15 03:20:40,947 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-15 03:20:41,060 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-15 03:20:41,183 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-15 03:20:41,322 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-15 03:20:41,443 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-15 03:20:41,646 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-15 03:20:41,902 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 577 DAG size of output: 575 [2019-10-15 03:20:42,015 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-15 03:20:42,140 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-15 03:20:42,252 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-15 03:20:42,369 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-15 03:20:42,495 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-15 03:20:42,735 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:20:42,845 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:42,987 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 564