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_product61.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:17:03,630 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:17:03,633 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:17:03,654 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:17:03,655 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:17:03,657 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:17:03,659 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:17:03,670 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:17:03,675 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:17:03,677 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:17:03,678 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:17:03,679 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:17:03,680 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:17:03,681 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:17:03,682 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:17:03,683 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:17:03,684 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:17:03,685 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:17:03,687 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:17:03,689 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:17:03,690 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:17:03,691 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:17:03,692 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:17:03,693 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:17:03,695 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:17:03,695 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:17:03,696 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:17:03,697 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:17:03,697 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:17:03,698 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:17:03,698 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:17:03,699 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:17:03,700 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:17:03,701 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:17:03,702 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:17:03,702 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:17:03,703 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:17:03,703 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:17:03,703 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:17:03,704 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:17:03,705 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:17:03,706 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 [2019-10-13 23:17:03,720 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:17:03,721 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:17:03,722 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:17:03,722 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:17:03,722 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:17:03,723 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:17:03,723 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:17:03,723 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:17:03,723 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:17:03,723 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:17:03,724 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:17:03,724 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:17:03,724 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:17:03,724 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:17:03,724 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:17:03,725 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:17:03,725 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:17:03,725 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:17:03,725 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:17:03,725 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:17:03,726 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:17:03,726 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:17:03,726 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:17:03,726 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:17:03,727 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:17:03,727 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:17:03,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:17:03,727 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:17:03,727 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 [2019-10-13 23:17:04,062 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:17:04,076 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:17:04,080 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:17:04,082 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:17:04,083 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:17:04,083 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product61.cil.c [2019-10-13 23:17:04,165 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98094901d/c374e33f989c40fbba069b54e631117d/FLAGc8bee7605 [2019-10-13 23:17:04,727 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:17:04,728 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product61.cil.c [2019-10-13 23:17:04,749 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98094901d/c374e33f989c40fbba069b54e631117d/FLAGc8bee7605 [2019-10-13 23:17:05,000 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98094901d/c374e33f989c40fbba069b54e631117d [2019-10-13 23:17:05,011 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:17:05,013 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:17:05,016 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:17:05,016 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:17:05,020 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:17:05,021 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:17:05" (1/1) ... [2019-10-13 23:17:05,023 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b536ee0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:05, skipping insertion in model container [2019-10-13 23:17:05,023 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:17:05" (1/1) ... [2019-10-13 23:17:05,031 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:17:05,074 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:17:05,553 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:17:05,578 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:17:05,676 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:17:05,731 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:17:05,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:05 WrapperNode [2019-10-13 23:17:05,732 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:17:05,732 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:17:05,733 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:17:05,733 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:17:05,743 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:05" (1/1) ... [2019-10-13 23:17:05,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:05" (1/1) ... [2019-10-13 23:17:05,772 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:05" (1/1) ... [2019-10-13 23:17:05,773 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:05" (1/1) ... [2019-10-13 23:17:05,809 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:05" (1/1) ... [2019-10-13 23:17:05,820 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:05" (1/1) ... [2019-10-13 23:17:05,826 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:05" (1/1) ... [2019-10-13 23:17:05,851 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:17:05,851 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:17:05,851 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:17:05,852 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:17:05,853 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:05" (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 [2019-10-13 23:17:05,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:17:05,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:17:05,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:17:05,924 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:17:05,925 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:17:05,926 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:17:05,926 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:17:05,927 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:17:05,927 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 23:17:05,928 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-13 23:17:05,928 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 23:17:05,929 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-10-13 23:17:05,929 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 23:17:05,929 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 23:17:05,930 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 23:17:05,930 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 23:17:05,933 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 23:17:05,933 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 23:17:05,934 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 23:17:05,934 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 23:17:05,934 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-13 23:17:05,934 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:17:05,934 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 23:17:05,935 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 23:17:05,935 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 23:17:05,935 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 23:17:05,935 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 23:17:05,935 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 23:17:05,936 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 23:17:05,936 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-13 23:17:05,936 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-10-13 23:17:05,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:17:05,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:17:05,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:17:05,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:17:05,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:17:05,938 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:17:05,938 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 23:17:05,938 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 23:17:05,938 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:17:05,938 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 23:17:05,938 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:17:05,939 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:17:05,939 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:17:05,939 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:17:05,939 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:17:05,939 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:17:05,940 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:17:05,940 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:17:05,941 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:17:05,941 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 23:17:05,941 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 23:17:05,941 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 23:17:05,941 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 23:17:05,941 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-13 23:17:05,941 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 23:17:05,942 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 23:17:05,942 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 23:17:05,942 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 23:17:05,943 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 23:17:05,943 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-10-13 23:17:05,943 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 23:17:05,943 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-13 23:17:05,944 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 23:17:05,944 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 23:17:05,944 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-13 23:17:05,944 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-10-13 23:17:05,944 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 23:17:05,944 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 23:17:05,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:17:05,945 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 23:17:05,945 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 23:17:05,945 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 23:17:05,946 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:17:05,946 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 23:17:05,946 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:17:05,947 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:17:05,947 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:17:05,947 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:17:05,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:17:05,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:17:05,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:17:05,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:17:05,949 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:17:05,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:17:05,950 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:17:05,950 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:17:05,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:17:05,951 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:17:05,951 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:17:05,952 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:17:05,952 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 23:17:05,952 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:17:05,952 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 23:17:05,952 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:17:05,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:17:05,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:17:05,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:17:07,666 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:17:07,667 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 23:17:07,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:17:07 BoogieIcfgContainer [2019-10-13 23:17:07,668 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:17:07,669 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:17:07,670 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:17:07,673 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:17:07,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:17:05" (1/3) ... [2019-10-13 23:17:07,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c4f1aba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:17:07, skipping insertion in model container [2019-10-13 23:17:07,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:05" (2/3) ... [2019-10-13 23:17:07,675 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c4f1aba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:17:07, skipping insertion in model container [2019-10-13 23:17:07,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:17:07" (3/3) ... [2019-10-13 23:17:07,676 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product61.cil.c [2019-10-13 23:17:07,686 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:17:07,696 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:17:07,707 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:17:07,736 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:17:07,736 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:17:07,736 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:17:07,736 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:17:07,736 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:17:07,736 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:17:07,737 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:17:07,737 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:17:07,761 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states. [2019-10-13 23:17:07,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-10-13 23:17:07,770 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:07,774 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] [2019-10-13 23:17:07,777 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:07,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:07,784 INFO L82 PathProgramCache]: Analyzing trace with hash 1507052969, now seen corresponding path program 1 times [2019-10-13 23:17:07,795 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:07,795 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324693169] [2019-10-13 23:17:07,795 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:07,796 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:07,796 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:08,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:08,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:17:08,294 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324693169] [2019-10-13 23:17:08,295 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:17:08,296 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:17:08,297 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471141705] [2019-10-13 23:17:08,302 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:17:08,303 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:08,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:17:08,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:17:08,329 INFO L87 Difference]: Start difference. First operand 162 states. Second operand 2 states. [2019-10-13 23:17:08,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:08,381 INFO L93 Difference]: Finished difference Result 257 states and 310 transitions. [2019-10-13 23:17:08,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:17:08,384 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 42 [2019-10-13 23:17:08,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:08,396 INFO L225 Difference]: With dead ends: 257 [2019-10-13 23:17:08,396 INFO L226 Difference]: Without dead ends: 129 [2019-10-13 23:17:08,401 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 [2019-10-13 23:17:08,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2019-10-13 23:17:08,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2019-10-13 23:17:08,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2019-10-13 23:17:08,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 149 transitions. [2019-10-13 23:17:08,469 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 149 transitions. Word has length 42 [2019-10-13 23:17:08,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:08,470 INFO L462 AbstractCegarLoop]: Abstraction has 129 states and 149 transitions. [2019-10-13 23:17:08,470 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:17:08,470 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 149 transitions. [2019-10-13 23:17:08,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-10-13 23:17:08,477 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:08,477 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] [2019-10-13 23:17:08,477 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:08,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:08,479 INFO L82 PathProgramCache]: Analyzing trace with hash 1923432424, now seen corresponding path program 1 times [2019-10-13 23:17:08,480 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:08,480 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580545679] [2019-10-13 23:17:08,480 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:08,480 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:08,480 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:08,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:08,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:17:08,598 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580545679] [2019-10-13 23:17:08,598 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:17:08,598 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:17:08,599 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44016795] [2019-10-13 23:17:08,601 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:17:08,601 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:08,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:17:08,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:17:08,603 INFO L87 Difference]: Start difference. First operand 129 states and 149 transitions. Second operand 3 states. [2019-10-13 23:17:08,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:08,649 INFO L93 Difference]: Finished difference Result 215 states and 249 transitions. [2019-10-13 23:17:08,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:17:08,651 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2019-10-13 23:17:08,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:08,656 INFO L225 Difference]: With dead ends: 215 [2019-10-13 23:17:08,656 INFO L226 Difference]: Without dead ends: 121 [2019-10-13 23:17:08,660 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 [2019-10-13 23:17:08,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2019-10-13 23:17:08,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2019-10-13 23:17:08,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2019-10-13 23:17:08,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 138 transitions. [2019-10-13 23:17:08,692 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 138 transitions. Word has length 43 [2019-10-13 23:17:08,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:08,692 INFO L462 AbstractCegarLoop]: Abstraction has 121 states and 138 transitions. [2019-10-13 23:17:08,692 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:17:08,693 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 138 transitions. [2019-10-13 23:17:08,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-10-13 23:17:08,701 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:08,702 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] [2019-10-13 23:17:08,702 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:08,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:08,703 INFO L82 PathProgramCache]: Analyzing trace with hash 905106011, now seen corresponding path program 1 times [2019-10-13 23:17:08,703 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:08,703 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805022138] [2019-10-13 23:17:08,703 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:08,704 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:08,704 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:08,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:08,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:17:08,876 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805022138] [2019-10-13 23:17:08,877 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:17:08,877 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:17:08,877 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439747173] [2019-10-13 23:17:08,878 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:17:08,878 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:08,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:17:08,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:17:08,879 INFO L87 Difference]: Start difference. First operand 121 states and 138 transitions. Second operand 7 states. [2019-10-13 23:17:09,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:09,268 INFO L93 Difference]: Finished difference Result 220 states and 255 transitions. [2019-10-13 23:17:09,268 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 23:17:09,268 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2019-10-13 23:17:09,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:09,270 INFO L225 Difference]: With dead ends: 220 [2019-10-13 23:17:09,271 INFO L226 Difference]: Without dead ends: 121 [2019-10-13 23:17:09,272 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-13 23:17:09,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2019-10-13 23:17:09,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2019-10-13 23:17:09,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2019-10-13 23:17:09,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 137 transitions. [2019-10-13 23:17:09,292 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 137 transitions. Word has length 45 [2019-10-13 23:17:09,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:09,293 INFO L462 AbstractCegarLoop]: Abstraction has 121 states and 137 transitions. [2019-10-13 23:17:09,293 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:17:09,293 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 137 transitions. [2019-10-13 23:17:09,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-10-13 23:17:09,298 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:09,298 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] [2019-10-13 23:17:09,298 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:09,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:09,299 INFO L82 PathProgramCache]: Analyzing trace with hash -1684050227, now seen corresponding path program 1 times [2019-10-13 23:17:09,299 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:09,299 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43928243] [2019-10-13 23:17:09,299 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:09,300 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:09,300 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:09,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:09,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:17:09,445 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43928243] [2019-10-13 23:17:09,445 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:17:09,445 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 23:17:09,445 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563468756] [2019-10-13 23:17:09,446 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 23:17:09,447 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:09,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 23:17:09,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 23:17:09,450 INFO L87 Difference]: Start difference. First operand 121 states and 137 transitions. Second operand 5 states. [2019-10-13 23:17:09,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:09,946 INFO L93 Difference]: Finished difference Result 318 states and 372 transitions. [2019-10-13 23:17:09,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 23:17:09,946 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 62 [2019-10-13 23:17:09,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:09,949 INFO L225 Difference]: With dead ends: 318 [2019-10-13 23:17:09,952 INFO L226 Difference]: Without dead ends: 219 [2019-10-13 23:17:09,953 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-13 23:17:09,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2019-10-13 23:17:09,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 204. [2019-10-13 23:17:10,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2019-10-13 23:17:10,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 222 transitions. [2019-10-13 23:17:10,001 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 222 transitions. Word has length 62 [2019-10-13 23:17:10,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:10,003 INFO L462 AbstractCegarLoop]: Abstraction has 204 states and 222 transitions. [2019-10-13 23:17:10,004 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 23:17:10,004 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 222 transitions. [2019-10-13 23:17:10,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-10-13 23:17:10,006 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:10,006 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] [2019-10-13 23:17:10,006 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:10,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:10,007 INFO L82 PathProgramCache]: Analyzing trace with hash 1105839931, now seen corresponding path program 1 times [2019-10-13 23:17:10,007 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:10,008 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802298803] [2019-10-13 23:17:10,008 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:10,008 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:10,008 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:10,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:10,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:17:10,215 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802298803] [2019-10-13 23:17:10,216 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:17:10,216 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 23:17:10,216 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984342406] [2019-10-13 23:17:10,216 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 23:17:10,217 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:10,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 23:17:10,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-10-13 23:17:10,219 INFO L87 Difference]: Start difference. First operand 204 states and 222 transitions. Second operand 10 states. [2019-10-13 23:17:10,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:10,729 INFO L93 Difference]: Finished difference Result 598 states and 677 transitions. [2019-10-13 23:17:10,730 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-13 23:17:10,730 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 72 [2019-10-13 23:17:10,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:10,735 INFO L225 Difference]: With dead ends: 598 [2019-10-13 23:17:10,735 INFO L226 Difference]: Without dead ends: 416 [2019-10-13 23:17:10,736 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 [2019-10-13 23:17:10,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2019-10-13 23:17:10,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 402. [2019-10-13 23:17:10,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2019-10-13 23:17:10,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 442 transitions. [2019-10-13 23:17:10,772 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 442 transitions. Word has length 72 [2019-10-13 23:17:10,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:10,772 INFO L462 AbstractCegarLoop]: Abstraction has 402 states and 442 transitions. [2019-10-13 23:17:10,772 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 23:17:10,772 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 442 transitions. [2019-10-13 23:17:10,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-10-13 23:17:10,775 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:10,775 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:17:10,775 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:10,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:10,776 INFO L82 PathProgramCache]: Analyzing trace with hash -1457497724, now seen corresponding path program 1 times [2019-10-13 23:17:10,776 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:10,776 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679008588] [2019-10-13 23:17:10,776 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:10,777 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:10,777 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:10,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:10,968 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 23:17:10,969 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679008588] [2019-10-13 23:17:10,969 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2028242642] [2019-10-13 23:17:10,969 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 [2019-10-13 23:17:11,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:11,164 INFO L256 TraceCheckSpWp]: Trace formula consists of 828 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-13 23:17:11,181 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:17:11,253 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-13 23:17:11,253 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:17:11,516 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-13 23:17:11,517 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-13 23:17:11,517 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [7] total 9 [2019-10-13 23:17:11,517 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417862391] [2019-10-13 23:17:11,518 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:17:11,518 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:11,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:17:11,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-10-13 23:17:11,519 INFO L87 Difference]: Start difference. First operand 402 states and 442 transitions. Second operand 7 states. [2019-10-13 23:17:11,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:11,751 INFO L93 Difference]: Finished difference Result 411 states and 451 transitions. [2019-10-13 23:17:11,751 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 23:17:11,752 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 125 [2019-10-13 23:17:11,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:11,756 INFO L225 Difference]: With dead ends: 411 [2019-10-13 23:17:11,756 INFO L226 Difference]: Without dead ends: 408 [2019-10-13 23:17:11,759 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2019-10-13 23:17:11,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2019-10-13 23:17:11,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 402. [2019-10-13 23:17:11,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2019-10-13 23:17:11,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 441 transitions. [2019-10-13 23:17:11,803 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 441 transitions. Word has length 125 [2019-10-13 23:17:11,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:11,804 INFO L462 AbstractCegarLoop]: Abstraction has 402 states and 441 transitions. [2019-10-13 23:17:11,804 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:17:11,804 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 441 transitions. [2019-10-13 23:17:11,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2019-10-13 23:17:11,807 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:11,808 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:17:12,014 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:17:12,014 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:12,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:12,015 INFO L82 PathProgramCache]: Analyzing trace with hash -1141164862, now seen corresponding path program 1 times [2019-10-13 23:17:12,016 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:12,016 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570918922] [2019-10-13 23:17:12,016 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:12,017 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:12,017 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:12,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:12,308 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-13 23:17:12,308 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570918922] [2019-10-13 23:17:12,309 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:17:12,309 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-10-13 23:17:12,309 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317485138] [2019-10-13 23:17:12,310 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-13 23:17:12,310 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:12,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-13 23:17:12,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2019-10-13 23:17:12,310 INFO L87 Difference]: Start difference. First operand 402 states and 441 transitions. Second operand 14 states. [2019-10-13 23:17:12,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:12,743 INFO L93 Difference]: Finished difference Result 708 states and 815 transitions. [2019-10-13 23:17:12,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-13 23:17:12,743 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 138 [2019-10-13 23:17:12,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:12,747 INFO L225 Difference]: With dead ends: 708 [2019-10-13 23:17:12,747 INFO L226 Difference]: Without dead ends: 526 [2019-10-13 23:17:12,749 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2019-10-13 23:17:12,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2019-10-13 23:17:12,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 458. [2019-10-13 23:17:12,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 458 states. [2019-10-13 23:17:12,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 514 transitions. [2019-10-13 23:17:12,778 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 514 transitions. Word has length 138 [2019-10-13 23:17:12,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:12,779 INFO L462 AbstractCegarLoop]: Abstraction has 458 states and 514 transitions. [2019-10-13 23:17:12,779 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-13 23:17:12,779 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 514 transitions. [2019-10-13 23:17:12,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2019-10-13 23:17:12,782 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:12,782 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:17:12,782 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:12,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:12,783 INFO L82 PathProgramCache]: Analyzing trace with hash -1901664799, now seen corresponding path program 1 times [2019-10-13 23:17:12,783 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:12,783 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512591877] [2019-10-13 23:17:12,783 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:12,784 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:12,784 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:12,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:13,143 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 15 proven. 6 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:17:13,144 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512591877] [2019-10-13 23:17:13,144 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [299736416] [2019-10-13 23:17:13,144 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 [2019-10-13 23:17:13,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:13,367 INFO L256 TraceCheckSpWp]: Trace formula consists of 892 conjuncts, 27 conjunts are in the unsatisfiable core [2019-10-13 23:17:13,375 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:17:13,551 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:13,657 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:13,749 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:17:13,749 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:17:14,213 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:14,635 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:14,636 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:15,500 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:15,501 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:15,501 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:15,534 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:15,777 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 15 proven. 6 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:17:15,777 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 23:17:15,777 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [15, 12] total 35 [2019-10-13 23:17:15,778 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777440862] [2019-10-13 23:17:15,778 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 23:17:15,778 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:15,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 23:17:15,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=1021, Unknown=0, NotChecked=0, Total=1190 [2019-10-13 23:17:15,780 INFO L87 Difference]: Start difference. First operand 458 states and 514 transitions. Second operand 12 states. [2019-10-13 23:17:17,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:17,842 INFO L93 Difference]: Finished difference Result 1004 states and 1189 transitions. [2019-10-13 23:17:17,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-10-13 23:17:17,842 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 147 [2019-10-13 23:17:17,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:17,846 INFO L225 Difference]: With dead ends: 1004 [2019-10-13 23:17:17,846 INFO L226 Difference]: Without dead ends: 568 [2019-10-13 23:17:17,848 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 270 SyntacticMatches, 10 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 600 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=407, Invalid=2143, Unknown=0, NotChecked=0, Total=2550 [2019-10-13 23:17:17,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2019-10-13 23:17:17,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 529. [2019-10-13 23:17:17,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 529 states. [2019-10-13 23:17:17,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 596 transitions. [2019-10-13 23:17:17,880 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 596 transitions. Word has length 147 [2019-10-13 23:17:17,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:17,881 INFO L462 AbstractCegarLoop]: Abstraction has 529 states and 596 transitions. [2019-10-13 23:17:17,881 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 23:17:17,881 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 596 transitions. [2019-10-13 23:17:17,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2019-10-13 23:17:17,884 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:17,884 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:17:18,087 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:17:18,088 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:18,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:18,089 INFO L82 PathProgramCache]: Analyzing trace with hash -559747437, now seen corresponding path program 2 times [2019-10-13 23:17:18,089 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:18,090 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285037175] [2019-10-13 23:17:18,090 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:18,090 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:18,090 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:18,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:18,375 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-13 23:17:18,375 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285037175] [2019-10-13 23:17:18,376 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1291741992] [2019-10-13 23:17:18,376 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 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 [2019-10-13 23:17:18,623 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-10-13 23:17:18,624 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-13 23:17:18,628 INFO L256 TraceCheckSpWp]: Trace formula consists of 892 conjuncts, 31 conjunts are in the unsatisfiable core [2019-10-13 23:17:18,634 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:17:18,699 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:18,737 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:18,808 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 24 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:17:18,808 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:17:19,011 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:19,012 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:19,013 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:19,015 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:19,050 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:19,132 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:19,149 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:19,315 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:19,315 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:19,355 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:19,413 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-10-13 23:17:19,414 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1180009610] [2019-10-13 23:17:19,438 INFO L162 IcfgInterpreter]: Started Sifa with 113 locations of interest [2019-10-13 23:17:19,438 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:17:19,445 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:17:19,452 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:17:19,452 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 23:17:28,754 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-13 23:17:30,504 WARN L191 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-13 23:17:30,641 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-13 23:17:30,775 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-13 23:17:30,897 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-13 23:17:31,124 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:31,425 WARN L191 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:31,646 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:31,902 WARN L191 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:32,271 WARN L191 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 542 DAG size of output: 540 [2019-10-13 23:17:32,496 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:32,699 WARN L191 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:32,872 WARN L191 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:33,024 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:33,179 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:33,188 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 184 for LOIs [2019-10-13 23:17:33,452 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 544 for LOIs [2019-10-13 23:17:33,564 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:17:33,683 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:17:33,818 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:17:33,936 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:17:34,050 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:17:34,210 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:17:34,541 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:17:34,862 WARN L191 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 554 DAG size of output: 544 [2019-10-13 23:17:35,002 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:17:35,237 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:17:35,447 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:17:35,578 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:17:35,692 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:17:35,932 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:17:36,048 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:17:36,355 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:17:36,562 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:17:36,693 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:17:36,940 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:17:37,054 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:17:37,365 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:17:37,500 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:17:37,714 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:17:37,919 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:17:38,033 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:17:38,361 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:17:38,499 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:17:38,605 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:17:38,723 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:17:39,032 WARN L191 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 554 DAG size of output: 552 [2019-10-13 23:17:39,137 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:17:39,254 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:17:39,378 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:17:39,504 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:17:39,616 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:17:39,738 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:39,845 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:39,963 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:40,218 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 554 [2019-10-13 23:17:40,324 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-10-13 23:17:40,471 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:40,651 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 554 [2019-10-13 23:17:40,757 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-10-13 23:17:40,873 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:40,981 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-10-13 23:17:41,086 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-10-13 23:17:41,205 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:41,312 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:41,426 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:41,569 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:17:41,729 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:41,836 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:41,955 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:17:42,145 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 560 DAG size of output: 556