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_spec4_product56.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:21:39,558 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:21:39,561 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:21:39,573 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:21:39,573 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:21:39,574 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:21:39,576 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:21:39,578 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:21:39,579 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:21:39,580 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:21:39,581 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:21:39,583 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:21:39,583 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:21:39,584 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:21:39,588 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:21:39,589 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:21:39,590 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:21:39,591 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:21:39,595 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:21:39,599 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:21:39,601 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:21:39,603 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:21:39,606 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:21:39,607 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:21:39,613 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:21:39,613 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:21:39,613 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:21:39,615 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:21:39,616 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:21:39,617 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:21:39,617 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:21:39,618 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:21:39,619 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:21:39,621 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:21:39,625 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:21:39,625 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:21:39,626 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:21:39,626 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:21:39,626 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:21:39,628 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:21:39,630 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:21:39,631 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 03:21:39,653 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:21:39,653 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:21:39,655 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:21:39,655 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:21:39,655 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:21:39,656 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:21:39,656 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:21:39,656 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:21:39,656 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:21:39,657 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:21:39,657 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:21:39,658 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:21:39,658 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:21:39,658 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:21:39,659 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:21:39,659 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:21:39,659 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:21:39,659 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:21:39,659 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:21:39,660 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:21:39,660 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:21:39,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:21:39,660 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:21:39,661 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:21:39,661 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:21:39,661 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:21:39,661 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:21:39,661 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:21:39,662 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 03:21:39,968 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:21:39,982 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:21:39,985 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:21:39,987 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:21:39,988 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:21:39,988 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product56.cil.c [2019-10-15 03:21:40,056 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c616eb324/84d1ed49025e49acb7779cacc8154005/FLAGf269c70a4 [2019-10-15 03:21:40,626 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:21:40,626 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product56.cil.c [2019-10-15 03:21:40,645 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c616eb324/84d1ed49025e49acb7779cacc8154005/FLAGf269c70a4 [2019-10-15 03:21:40,908 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c616eb324/84d1ed49025e49acb7779cacc8154005 [2019-10-15 03:21:40,920 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:21:40,922 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:21:40,923 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:21:40,925 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:21:40,928 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:21:40,930 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:21:40" (1/1) ... [2019-10-15 03:21:40,933 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d974c45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:40, skipping insertion in model container [2019-10-15 03:21:40,933 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:21:40" (1/1) ... [2019-10-15 03:21:40,941 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:21:41,007 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:21:41,493 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:21:41,512 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:21:41,616 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:21:41,658 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:21:41,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:41 WrapperNode [2019-10-15 03:21:41,659 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:21:41,660 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:21:41,660 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:21:41,660 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:21:41,671 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:41" (1/1) ... [2019-10-15 03:21:41,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:41" (1/1) ... [2019-10-15 03:21:41,690 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:41" (1/1) ... [2019-10-15 03:21:41,690 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:41" (1/1) ... [2019-10-15 03:21:41,723 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:41" (1/1) ... [2019-10-15 03:21:41,737 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:41" (1/1) ... [2019-10-15 03:21:41,743 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:41" (1/1) ... [2019-10-15 03:21:41,765 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:21:41,766 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:21:41,766 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:21:41,766 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:21:41,767 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:41" (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 03:21:41,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:21:41,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:21:41,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:21:41,858 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-15 03:21:41,859 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-15 03:21:41,860 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-15 03:21:41,860 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2019-10-15 03:21:41,860 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-15 03:21:41,860 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-15 03:21:41,861 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-15 03:21:41,861 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-15 03:21:41,862 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-15 03:21:41,862 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-15 03:21:41,862 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-15 03:21:41,863 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-15 03:21:41,863 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-15 03:21:41,865 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-15 03:21:41,865 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:21:41,866 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:21:41,866 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:21:41,866 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:21:41,866 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:21:41,867 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:21:41,867 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:21:41,867 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-10-15 03:21:41,867 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-15 03:21:41,867 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-15 03:21:41,867 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:21:41,868 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-15 03:21:41,868 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:21:41,868 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:21:41,868 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-15 03:21:41,868 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-15 03:21:41,868 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-15 03:21:41,869 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-15 03:21:41,869 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-15 03:21:41,869 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-15 03:21:41,869 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-15 03:21:41,869 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-15 03:21:41,870 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:21:41,870 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:21:41,870 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:21:41,870 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:21:41,870 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:21:41,871 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:21:41,871 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:21:41,871 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-15 03:21:41,871 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-15 03:21:41,871 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-15 03:21:41,871 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-15 03:21:41,872 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-15 03:21:41,872 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-15 03:21:41,872 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-15 03:21:41,872 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-15 03:21:41,872 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-15 03:21:41,872 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-15 03:21:41,872 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-15 03:21:41,873 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-15 03:21:41,873 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-10-15 03:21:41,874 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-15 03:21:41,874 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-15 03:21:41,874 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-15 03:21:41,874 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-15 03:21:41,874 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-15 03:21:41,875 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2019-10-15 03:21:41,875 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-15 03:21:41,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:21:41,875 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:21:41,875 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:21:41,875 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:21:41,876 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:21:41,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:21:41,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:21:41,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:21:41,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:21:41,877 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:21:41,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:21:41,878 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:21:41,878 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:21:41,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:21:41,880 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:21:41,880 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:21:41,880 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:21:41,880 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-15 03:21:41,880 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-15 03:21:41,880 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-15 03:21:41,881 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:21:41,882 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:21:41,882 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-15 03:21:41,882 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-15 03:21:41,882 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:21:41,882 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-15 03:21:41,882 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:21:41,883 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:21:41,883 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:21:41,883 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:21:41,883 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:21:41,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:21:41,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:21:41,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:21:43,547 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:21:43,548 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-15 03:21:43,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:21:43 BoogieIcfgContainer [2019-10-15 03:21:43,550 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:21:43,552 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:21:43,552 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:21:43,556 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:21:43,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:21:40" (1/3) ... [2019-10-15 03:21:43,557 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ff634c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:21:43, skipping insertion in model container [2019-10-15 03:21:43,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:41" (2/3) ... [2019-10-15 03:21:43,559 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ff634c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:21:43, skipping insertion in model container [2019-10-15 03:21:43,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:21:43" (3/3) ... [2019-10-15 03:21:43,563 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product56.cil.c [2019-10-15 03:21:43,574 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:21:43,583 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:21:43,594 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:21:43,629 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:21:43,629 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:21:43,629 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:21:43,629 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:21:43,630 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:21:43,630 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:21:43,630 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:21:43,630 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:21:43,662 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states. [2019-10-15 03:21:43,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-10-15 03:21:43,673 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:21:43,674 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] [2019-10-15 03:21:43,678 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:21:43,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:21:43,684 INFO L82 PathProgramCache]: Analyzing trace with hash 1305827557, now seen corresponding path program 1 times [2019-10-15 03:21:43,694 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:21:43,695 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764200296] [2019-10-15 03:21:43,695 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:43,695 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:43,696 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:21:43,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:21:44,063 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 03:21:44,063 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764200296] [2019-10-15 03:21:44,064 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:21:44,065 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:21:44,065 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388350265] [2019-10-15 03:21:44,070 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:21:44,070 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:21:44,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:21:44,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:21:44,088 INFO L87 Difference]: Start difference. First operand 165 states. Second operand 2 states. [2019-10-15 03:21:44,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:21:44,152 INFO L93 Difference]: Finished difference Result 263 states and 320 transitions. [2019-10-15 03:21:44,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:21:44,154 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 42 [2019-10-15 03:21:44,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:21:44,169 INFO L225 Difference]: With dead ends: 263 [2019-10-15 03:21:44,170 INFO L226 Difference]: Without dead ends: 132 [2019-10-15 03:21:44,175 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 03:21:44,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2019-10-15 03:21:44,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2019-10-15 03:21:44,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-10-15 03:21:44,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 154 transitions. [2019-10-15 03:21:44,244 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 154 transitions. Word has length 42 [2019-10-15 03:21:44,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:21:44,244 INFO L462 AbstractCegarLoop]: Abstraction has 132 states and 154 transitions. [2019-10-15 03:21:44,245 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:21:44,245 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 154 transitions. [2019-10-15 03:21:44,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-10-15 03:21:44,249 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:21:44,249 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] [2019-10-15 03:21:44,250 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:21:44,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:21:44,250 INFO L82 PathProgramCache]: Analyzing trace with hash -347093035, now seen corresponding path program 1 times [2019-10-15 03:21:44,251 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:21:44,251 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228348982] [2019-10-15 03:21:44,251 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:44,252 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:44,252 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:21:44,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:21:44,393 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 03:21:44,394 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228348982] [2019-10-15 03:21:44,394 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:21:44,394 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:21:44,394 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287457399] [2019-10-15 03:21:44,398 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:21:44,398 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:21:44,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:21:44,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:21:44,399 INFO L87 Difference]: Start difference. First operand 132 states and 154 transitions. Second operand 3 states. [2019-10-15 03:21:44,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:21:44,446 INFO L93 Difference]: Finished difference Result 211 states and 245 transitions. [2019-10-15 03:21:44,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:21:44,448 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2019-10-15 03:21:44,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:21:44,453 INFO L225 Difference]: With dead ends: 211 [2019-10-15 03:21:44,453 INFO L226 Difference]: Without dead ends: 124 [2019-10-15 03:21:44,457 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 03:21:44,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2019-10-15 03:21:44,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2019-10-15 03:21:44,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2019-10-15 03:21:44,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 143 transitions. [2019-10-15 03:21:44,487 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 143 transitions. Word has length 43 [2019-10-15 03:21:44,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:21:44,488 INFO L462 AbstractCegarLoop]: Abstraction has 124 states and 143 transitions. [2019-10-15 03:21:44,488 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:21:44,488 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 143 transitions. [2019-10-15 03:21:44,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-15 03:21:44,493 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:21:44,493 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 03:21:44,493 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:21:44,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:21:44,494 INFO L82 PathProgramCache]: Analyzing trace with hash -1786678085, now seen corresponding path program 1 times [2019-10-15 03:21:44,494 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:21:44,495 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918653284] [2019-10-15 03:21:44,495 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:44,495 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:44,495 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:21:44,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:21:44,744 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 03:21:44,745 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918653284] [2019-10-15 03:21:44,745 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:21:44,745 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:21:44,746 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662591185] [2019-10-15 03:21:44,747 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:21:44,747 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:21:44,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:21:44,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:21:44,748 INFO L87 Difference]: Start difference. First operand 124 states and 143 transitions. Second operand 7 states. [2019-10-15 03:21:45,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:21:45,386 INFO L93 Difference]: Finished difference Result 373 states and 445 transitions. [2019-10-15 03:21:45,387 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 03:21:45,388 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 47 [2019-10-15 03:21:45,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:21:45,392 INFO L225 Difference]: With dead ends: 373 [2019-10-15 03:21:45,397 INFO L226 Difference]: Without dead ends: 271 [2019-10-15 03:21:45,398 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-15 03:21:45,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2019-10-15 03:21:45,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 259. [2019-10-15 03:21:45,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2019-10-15 03:21:45,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 308 transitions. [2019-10-15 03:21:45,456 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 308 transitions. Word has length 47 [2019-10-15 03:21:45,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:21:45,456 INFO L462 AbstractCegarLoop]: Abstraction has 259 states and 308 transitions. [2019-10-15 03:21:45,456 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:21:45,456 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 308 transitions. [2019-10-15 03:21:45,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-15 03:21:45,459 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:21:45,459 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 03:21:45,463 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:21:45,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:21:45,463 INFO L82 PathProgramCache]: Analyzing trace with hash 78965688, now seen corresponding path program 1 times [2019-10-15 03:21:45,464 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:21:45,464 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011019180] [2019-10-15 03:21:45,464 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:45,464 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:45,464 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:21:45,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:21:45,683 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 03:21:45,683 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011019180] [2019-10-15 03:21:45,683 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:21:45,683 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-15 03:21:45,684 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114298794] [2019-10-15 03:21:45,684 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-15 03:21:45,684 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:21:45,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-15 03:21:45,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-10-15 03:21:45,685 INFO L87 Difference]: Start difference. First operand 259 states and 308 transitions. Second operand 10 states. [2019-10-15 03:21:46,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:21:46,393 INFO L93 Difference]: Finished difference Result 931 states and 1154 transitions. [2019-10-15 03:21:46,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-15 03:21:46,394 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 51 [2019-10-15 03:21:46,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:21:46,400 INFO L225 Difference]: With dead ends: 931 [2019-10-15 03:21:46,401 INFO L226 Difference]: Without dead ends: 694 [2019-10-15 03:21:46,402 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2019-10-15 03:21:46,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2019-10-15 03:21:46,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 670. [2019-10-15 03:21:46,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 670 states. [2019-10-15 03:21:46,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 815 transitions. [2019-10-15 03:21:46,482 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 815 transitions. Word has length 51 [2019-10-15 03:21:46,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:21:46,483 INFO L462 AbstractCegarLoop]: Abstraction has 670 states and 815 transitions. [2019-10-15 03:21:46,483 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-15 03:21:46,483 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 815 transitions. [2019-10-15 03:21:46,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-10-15 03:21:46,487 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:21:46,487 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] [2019-10-15 03:21:46,488 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:21:46,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:21:46,488 INFO L82 PathProgramCache]: Analyzing trace with hash 519297942, now seen corresponding path program 1 times [2019-10-15 03:21:46,488 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:21:46,489 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132517548] [2019-10-15 03:21:46,489 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:46,490 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:46,490 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:21:46,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:21:46,600 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 03:21:46,600 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132517548] [2019-10-15 03:21:46,600 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:21:46,601 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 03:21:46,601 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279865193] [2019-10-15 03:21:46,601 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 03:21:46,602 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:21:46,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 03:21:46,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 03:21:46,602 INFO L87 Difference]: Start difference. First operand 670 states and 815 transitions. Second operand 4 states. [2019-10-15 03:21:47,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:21:47,004 INFO L93 Difference]: Finished difference Result 1606 states and 2125 transitions. [2019-10-15 03:21:47,004 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 03:21:47,004 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2019-10-15 03:21:47,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:21:47,011 INFO L225 Difference]: With dead ends: 1606 [2019-10-15 03:21:47,011 INFO L226 Difference]: Without dead ends: 958 [2019-10-15 03:21:47,014 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-15 03:21:47,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 958 states. [2019-10-15 03:21:47,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 958 to 825. [2019-10-15 03:21:47,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 825 states. [2019-10-15 03:21:47,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 982 transitions. [2019-10-15 03:21:47,097 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 982 transitions. Word has length 54 [2019-10-15 03:21:47,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:21:47,097 INFO L462 AbstractCegarLoop]: Abstraction has 825 states and 982 transitions. [2019-10-15 03:21:47,098 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 03:21:47,098 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 982 transitions. [2019-10-15 03:21:47,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-10-15 03:21:47,102 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:21:47,102 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 03:21:47,102 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:21:47,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:21:47,103 INFO L82 PathProgramCache]: Analyzing trace with hash -1436947575, now seen corresponding path program 1 times [2019-10-15 03:21:47,104 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:21:47,104 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234322521] [2019-10-15 03:21:47,104 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:47,104 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:47,104 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:21:47,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:21:47,262 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:21:47,262 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234322521] [2019-10-15 03:21:47,263 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699654146] [2019-10-15 03:21:47,263 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 03:21:47,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:21:47,456 INFO L256 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-15 03:21:47,467 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:21:47,511 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-15 03:21:47,512 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:21:47,669 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-15 03:21:47,670 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 03:21:47,670 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [7] total 9 [2019-10-15 03:21:47,670 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420129934] [2019-10-15 03:21:47,671 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:21:47,671 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:21:47,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:21:47,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-10-15 03:21:47,673 INFO L87 Difference]: Start difference. First operand 825 states and 982 transitions. Second operand 7 states. [2019-10-15 03:21:48,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:21:48,121 INFO L93 Difference]: Finished difference Result 838 states and 998 transitions. [2019-10-15 03:21:48,121 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 03:21:48,121 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 79 [2019-10-15 03:21:48,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:21:48,126 INFO L225 Difference]: With dead ends: 838 [2019-10-15 03:21:48,127 INFO L226 Difference]: Without dead ends: 835 [2019-10-15 03:21:48,128 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2019-10-15 03:21:48,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2019-10-15 03:21:48,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 825. [2019-10-15 03:21:48,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 825 states. [2019-10-15 03:21:48,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 979 transitions. [2019-10-15 03:21:48,184 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 979 transitions. Word has length 79 [2019-10-15 03:21:48,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:21:48,185 INFO L462 AbstractCegarLoop]: Abstraction has 825 states and 979 transitions. [2019-10-15 03:21:48,185 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:21:48,185 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 979 transitions. [2019-10-15 03:21:48,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2019-10-15 03:21:48,190 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:21:48,190 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 03:21:48,395 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:21:48,396 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:21:48,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:21:48,396 INFO L82 PathProgramCache]: Analyzing trace with hash 1521573520, now seen corresponding path program 1 times [2019-10-15 03:21:48,397 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:21:48,397 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668024661] [2019-10-15 03:21:48,397 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:48,398 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:48,398 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:21:48,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:21:48,490 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-15 03:21:48,491 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668024661] [2019-10-15 03:21:48,491 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:21:48,491 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:21:48,491 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317701360] [2019-10-15 03:21:48,492 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:21:48,492 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:21:48,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:21:48,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:21:48,495 INFO L87 Difference]: Start difference. First operand 825 states and 979 transitions. Second operand 3 states. [2019-10-15 03:21:48,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:21:48,569 INFO L93 Difference]: Finished difference Result 1309 states and 1558 transitions. [2019-10-15 03:21:48,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:21:48,569 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 106 [2019-10-15 03:21:48,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:21:48,575 INFO L225 Difference]: With dead ends: 1309 [2019-10-15 03:21:48,576 INFO L226 Difference]: Without dead ends: 506 [2019-10-15 03:21:48,578 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 03:21:48,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2019-10-15 03:21:48,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 491. [2019-10-15 03:21:48,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 491 states. [2019-10-15 03:21:48,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 571 transitions. [2019-10-15 03:21:48,608 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 571 transitions. Word has length 106 [2019-10-15 03:21:48,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:21:48,608 INFO L462 AbstractCegarLoop]: Abstraction has 491 states and 571 transitions. [2019-10-15 03:21:48,609 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:21:48,609 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 571 transitions. [2019-10-15 03:21:48,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2019-10-15 03:21:48,611 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:21:48,612 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, 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] [2019-10-15 03:21:48,612 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:21:48,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:21:48,612 INFO L82 PathProgramCache]: Analyzing trace with hash -661595660, now seen corresponding path program 1 times [2019-10-15 03:21:48,613 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:21:48,613 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862369867] [2019-10-15 03:21:48,613 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:48,613 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:48,613 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:21:48,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:21:48,710 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 18 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-10-15 03:21:48,711 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862369867] [2019-10-15 03:21:48,711 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [80401143] [2019-10-15 03:21:48,711 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 03:21:48,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:21:48,939 INFO L256 TraceCheckSpWp]: Trace formula consists of 858 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-15 03:21:48,954 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:21:49,018 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:21:49,018 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:21:49,278 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 18 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-10-15 03:21:49,279 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 03:21:49,279 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 3] total 8 [2019-10-15 03:21:49,279 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495091419] [2019-10-15 03:21:49,280 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:21:49,280 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:21:49,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:21:49,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-15 03:21:49,281 INFO L87 Difference]: Start difference. First operand 491 states and 571 transitions. Second operand 3 states. [2019-10-15 03:21:49,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:21:49,371 INFO L93 Difference]: Finished difference Result 960 states and 1120 transitions. [2019-10-15 03:21:49,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:21:49,372 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 129 [2019-10-15 03:21:49,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:21:49,375 INFO L225 Difference]: With dead ends: 960 [2019-10-15 03:21:49,376 INFO L226 Difference]: Without dead ends: 491 [2019-10-15 03:21:49,377 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 03:21:49,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2019-10-15 03:21:49,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 481. [2019-10-15 03:21:49,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2019-10-15 03:21:49,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 529 transitions. [2019-10-15 03:21:49,403 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 529 transitions. Word has length 129 [2019-10-15 03:21:49,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:21:49,404 INFO L462 AbstractCegarLoop]: Abstraction has 481 states and 529 transitions. [2019-10-15 03:21:49,404 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:21:49,404 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 529 transitions. [2019-10-15 03:21:49,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-10-15 03:21:49,406 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:21:49,406 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 03:21:49,611 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:21:49,612 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:21:49,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:21:49,613 INFO L82 PathProgramCache]: Analyzing trace with hash 1796754207, now seen corresponding path program 1 times [2019-10-15 03:21:49,613 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:21:49,614 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866842861] [2019-10-15 03:21:49,614 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:49,614 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:49,614 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:21:49,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:21:49,843 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:21:49,844 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866842861] [2019-10-15 03:21:49,844 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1820241462] [2019-10-15 03:21:49,844 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 03:21:50,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:21:50,077 INFO L256 TraceCheckSpWp]: Trace formula consists of 809 conjuncts, 49 conjunts are in the unsatisfiable core [2019-10-15 03:21:50,082 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:21:50,189 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:21:50,250 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:21:50,250 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:21:50,689 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:21:50,789 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:21:50,790 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:21:50,856 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:21:50,961 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-15 03:21:50,961 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [740711071] [2019-10-15 03:21:50,990 INFO L162 IcfgInterpreter]: Started Sifa with 89 locations of interest [2019-10-15 03:21:50,990 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:21:50,998 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:21:51,007 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:21:51,007 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 03:22:00,573 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-15 03:22:02,184 WARN L191 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-15 03:22:02,302 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-15 03:22:02,442 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-15 03:22:02,606 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-15 03:22:02,850 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:22:03,081 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:22:03,257 WARN L191 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:22:03,460 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:22:03,757 WARN L191 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 542 DAG size of output: 540 [2019-10-15 03:22:03,916 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:22:04,079 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:22:04,198 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:22:04,338 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:22:04,472 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:22:04,482 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 184 for LOIs [2019-10-15 03:22:04,779 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 542 for LOIs [2019-10-15 03:22:05,158 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:05,319 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-15 03:22:05,431 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-15 03:22:05,562 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:05,704 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-15 03:22:05,841 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-15 03:22:05,961 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:06,171 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 542 [2019-10-15 03:22:06,424 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:06,535 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-15 03:22:06,748 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:07,097 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:07,209 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-15 03:22:07,425 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:07,786 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:08,097 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:08,416 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:08,533 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-15 03:22:08,653 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-15 03:22:08,772 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:09,087 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:09,297 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-15 03:22:09,431 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:09,579 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:09,688 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:09,807 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:10,023 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-15 03:22:10,131 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:10,274 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:10,399 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:10,513 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:10,629 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:10,763 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-15 03:22:10,872 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-15 03:22:11,000 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:11,116 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:11,240 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:11,363 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:11,595 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-15 03:22:11,705 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-15 03:22:11,826 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:11,942 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-15 03:22:12,054 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-15 03:22:12,182 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-15 03:22:12,311 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-15 03:22:12,425 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-15 03:22:12,687 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-15 03:22:12,942 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-15 03:22:13,070 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-15 03:22:13,196 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-15 03:22:13,402 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 569 DAG size of output: 567 [2019-10-15 03:22:13,527 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-15 03:22:13,661 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-15 03:22:13,774 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-15 03:22:13,888 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-15 03:22:14,015 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-15 03:22:14,230 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-15 03:22:14,375 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:14,500 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:14,727 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-15 03:22:14,836 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:14,953 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:15,059 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:15,165 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:15,280 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:15,398 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:15,505 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:15,633 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:15,826 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-15 03:22:15,934 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-15 03:22:16,056 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:16,241 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-15 03:22:16,351 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-15 03:22:16,468 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:16,670 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 567 DAG size of output: 558 [2019-10-15 03:22:16,785 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-15 03:22:16,915 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:17,109 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 569 DAG size of output: 560 [2019-10-15 03:22:17,218 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:17,339 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-15 03:22:17,544 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-15 03:22:17,650 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:17,770 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:17,968 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-15 03:22:18,074 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:18,196 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:18,303 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:18,410 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:18,524 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:18,741 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-15 03:22:18,850 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:18,979 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:19,179 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-15 03:22:19,287 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:19,404 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:19,511 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:19,619 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:19,734 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:19,867 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:19,980 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:20,104 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:20,264 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:20,373 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:20,494 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:20,604 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:20,713 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:20,832 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:21,028 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-15 03:22:21,135 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 558