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_product64.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:22:17,520 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:22:17,522 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:22:17,542 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:22:17,542 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:22:17,544 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:22:17,546 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:22:17,559 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:22:17,561 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:22:17,562 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:22:17,564 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:22:17,565 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:22:17,565 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:22:17,569 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:22:17,572 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:22:17,574 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:22:17,576 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:22:17,579 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:22:17,580 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:22:17,587 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:22:17,592 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:22:17,595 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:22:17,598 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:22:17,599 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:22:17,603 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:22:17,603 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:22:17,603 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:22:17,605 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:22:17,606 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:22:17,607 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:22:17,607 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:22:17,608 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:22:17,609 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:22:17,609 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:22:17,610 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:22:17,611 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:22:17,611 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:22:17,611 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:22:17,612 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:22:17,613 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:22:17,613 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:22:17,614 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 03:22:17,628 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:22:17,628 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:22:17,629 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:22:17,629 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:22:17,630 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:22:17,630 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:22:17,630 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:22:17,630 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:22:17,631 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:22:17,631 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:22:17,631 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:22:17,631 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:22:17,631 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:22:17,632 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:22:17,632 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:22:17,632 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:22:17,632 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:22:17,632 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:22:17,633 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:22:17,633 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:22:17,633 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:22:17,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:22:17,633 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:22:17,634 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:22:17,634 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:22:17,634 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:22:17,634 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:22:17,634 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:22:17,635 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 03:22:17,911 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:22:17,925 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:22:17,929 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:22:17,931 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:22:17,931 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:22:17,932 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product64.cil.c [2019-10-15 03:22:17,998 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/562f95697/3afb52d9c9124598b085af704b36f6eb/FLAG077ef7fcd [2019-10-15 03:22:18,521 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:22:18,522 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product64.cil.c [2019-10-15 03:22:18,545 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/562f95697/3afb52d9c9124598b085af704b36f6eb/FLAG077ef7fcd [2019-10-15 03:22:18,811 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/562f95697/3afb52d9c9124598b085af704b36f6eb [2019-10-15 03:22:18,822 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:22:18,823 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:22:18,824 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:22:18,825 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:22:18,827 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:22:18,828 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:22:18" (1/1) ... [2019-10-15 03:22:18,831 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f4b78c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:18, skipping insertion in model container [2019-10-15 03:22:18,831 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:22:18" (1/1) ... [2019-10-15 03:22:18,839 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:22:18,907 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:22:19,395 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:22:19,410 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:22:19,526 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:22:19,572 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:22:19,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:19 WrapperNode [2019-10-15 03:22:19,572 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:22:19,573 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:22:19,573 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:22:19,573 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:22:19,585 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:19" (1/1) ... [2019-10-15 03:22:19,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:19" (1/1) ... [2019-10-15 03:22:19,605 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:19" (1/1) ... [2019-10-15 03:22:19,606 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:19" (1/1) ... [2019-10-15 03:22:19,644 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:19" (1/1) ... [2019-10-15 03:22:19,655 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:19" (1/1) ... [2019-10-15 03:22:19,661 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:19" (1/1) ... [2019-10-15 03:22:19,669 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:22:19,670 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:22:19,670 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:22:19,670 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:22:19,672 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:19" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:22:19,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:22:19,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:22:19,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:22:19,752 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-15 03:22:19,752 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-15 03:22:19,753 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:22:19,754 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-15 03:22:19,754 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:22:19,755 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:22:19,755 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-10-15 03:22:19,755 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:22:19,756 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-15 03:22:19,757 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-15 03:22:19,757 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-15 03:22:19,757 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-10-15 03:22:19,757 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-15 03:22:19,760 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-15 03:22:19,760 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-15 03:22:19,761 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-15 03:22:19,761 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-15 03:22:19,761 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-15 03:22:19,761 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-15 03:22:19,761 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-15 03:22:19,762 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-15 03:22:19,762 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-15 03:22:19,762 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-15 03:22:19,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:22:19,763 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:22:19,763 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:22:19,763 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:22:19,763 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:22:19,763 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:22:19,764 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-15 03:22:19,764 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-15 03:22:19,764 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-15 03:22:19,765 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-15 03:22:19,765 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-15 03:22:19,765 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-15 03:22:19,765 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-15 03:22:19,765 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-15 03:22:19,765 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:22:19,766 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:22:19,766 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:22:19,766 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:22:19,766 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:22:19,766 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:22:19,766 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:22:19,767 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-15 03:22:19,767 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-15 03:22:19,767 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-15 03:22:19,767 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-15 03:22:19,767 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-15 03:22:19,767 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-15 03:22:19,767 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:22:19,768 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:22:19,768 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-15 03:22:19,768 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:22:19,768 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:22:19,768 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:22:19,769 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:22:19,769 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:22:19,770 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-15 03:22:19,770 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-15 03:22:19,770 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-10-15 03:22:19,770 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-15 03:22:19,770 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-15 03:22:19,771 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-15 03:22:19,771 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-15 03:22:19,771 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-15 03:22:19,771 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-15 03:22:19,771 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-15 03:22:19,771 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-15 03:22:19,772 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-15 03:22:19,773 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-15 03:22:19,773 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-15 03:22:19,773 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-15 03:22:19,774 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-15 03:22:19,774 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-15 03:22:19,774 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-10-15 03:22:19,774 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-15 03:22:19,775 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-15 03:22:19,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:22:19,776 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:22:19,776 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:22:19,776 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:22:19,776 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:22:19,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:22:19,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:22:19,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:22:19,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:22:19,778 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:22:19,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:22:19,778 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:22:19,779 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:22:19,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:22:19,779 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:22:19,779 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:22:19,780 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:22:19,780 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:22:19,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:22:19,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:22:19,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:22:21,592 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:22:21,592 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-15 03:22:21,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:22:21 BoogieIcfgContainer [2019-10-15 03:22:21,594 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:22:21,595 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:22:21,595 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:22:21,599 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:22:21,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:22:18" (1/3) ... [2019-10-15 03:22:21,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7be1dd41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:22:21, skipping insertion in model container [2019-10-15 03:22:21,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:19" (2/3) ... [2019-10-15 03:22:21,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7be1dd41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:22:21, skipping insertion in model container [2019-10-15 03:22:21,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:22:21" (3/3) ... [2019-10-15 03:22:21,604 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product64.cil.c [2019-10-15 03:22:21,615 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:22:21,625 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:22:21,637 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:22:21,676 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:22:21,676 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:22:21,677 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:22:21,677 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:22:21,677 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:22:21,677 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:22:21,679 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:22:21,679 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:22:21,708 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states. [2019-10-15 03:22:21,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-10-15 03:22:21,723 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:22:21,725 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 03:22:21,727 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:22:21,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:22:21,733 INFO L82 PathProgramCache]: Analyzing trace with hash -958260662, now seen corresponding path program 1 times [2019-10-15 03:22:21,743 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:22:21,743 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560255288] [2019-10-15 03:22:21,744 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:21,744 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:21,744 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:22:21,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:22:22,079 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 03:22:22,080 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560255288] [2019-10-15 03:22:22,081 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:22:22,081 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:22:22,081 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259636474] [2019-10-15 03:22:22,086 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:22:22,087 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:22:22,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:22:22,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:22:22,108 INFO L87 Difference]: Start difference. First operand 172 states. Second operand 2 states. [2019-10-15 03:22:22,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:22:22,157 INFO L93 Difference]: Finished difference Result 277 states and 338 transitions. [2019-10-15 03:22:22,157 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:22:22,158 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 42 [2019-10-15 03:22:22,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:22:22,174 INFO L225 Difference]: With dead ends: 277 [2019-10-15 03:22:22,175 INFO L226 Difference]: Without dead ends: 139 [2019-10-15 03:22:22,180 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:22:22,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2019-10-15 03:22:22,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2019-10-15 03:22:22,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2019-10-15 03:22:22,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 163 transitions. [2019-10-15 03:22:22,247 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 163 transitions. Word has length 42 [2019-10-15 03:22:22,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:22:22,248 INFO L462 AbstractCegarLoop]: Abstraction has 139 states and 163 transitions. [2019-10-15 03:22:22,248 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:22:22,249 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 163 transitions. [2019-10-15 03:22:22,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-10-15 03:22:22,252 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:22:22,252 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 03:22:22,253 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:22:22,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:22:22,253 INFO L82 PathProgramCache]: Analyzing trace with hash -259571496, now seen corresponding path program 1 times [2019-10-15 03:22:22,254 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:22:22,254 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288295688] [2019-10-15 03:22:22,254 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:22,254 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:22,255 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:22:22,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:22:22,410 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 03:22:22,411 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288295688] [2019-10-15 03:22:22,412 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:22:22,412 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:22:22,412 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133904256] [2019-10-15 03:22:22,415 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:22:22,416 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:22:22,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:22:22,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:22:22,417 INFO L87 Difference]: Start difference. First operand 139 states and 163 transitions. Second operand 3 states. [2019-10-15 03:22:22,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:22:22,472 INFO L93 Difference]: Finished difference Result 225 states and 263 transitions. [2019-10-15 03:22:22,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:22:22,473 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2019-10-15 03:22:22,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:22:22,480 INFO L225 Difference]: With dead ends: 225 [2019-10-15 03:22:22,480 INFO L226 Difference]: Without dead ends: 131 [2019-10-15 03:22:22,482 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:22:22,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2019-10-15 03:22:22,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2019-10-15 03:22:22,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2019-10-15 03:22:22,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 152 transitions. [2019-10-15 03:22:22,508 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 152 transitions. Word has length 43 [2019-10-15 03:22:22,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:22:22,508 INFO L462 AbstractCegarLoop]: Abstraction has 131 states and 152 transitions. [2019-10-15 03:22:22,508 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:22:22,509 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 152 transitions. [2019-10-15 03:22:22,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-15 03:22:22,511 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:22:22,511 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 03:22:22,512 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:22:22,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:22:22,512 INFO L82 PathProgramCache]: Analyzing trace with hash 1408950885, now seen corresponding path program 1 times [2019-10-15 03:22:22,512 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:22:22,513 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892399221] [2019-10-15 03:22:22,513 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:22,513 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:22,513 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:22:22,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:22:22,746 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 03:22:22,747 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892399221] [2019-10-15 03:22:22,747 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:22:22,747 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:22:22,747 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58346556] [2019-10-15 03:22:22,748 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:22:22,748 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:22:22,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:22:22,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:22:22,749 INFO L87 Difference]: Start difference. First operand 131 states and 152 transitions. Second operand 7 states. [2019-10-15 03:22:23,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:22:23,328 INFO L93 Difference]: Finished difference Result 394 states and 472 transitions. [2019-10-15 03:22:23,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 03:22:23,329 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 47 [2019-10-15 03:22:23,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:22:23,333 INFO L225 Difference]: With dead ends: 394 [2019-10-15 03:22:23,333 INFO L226 Difference]: Without dead ends: 285 [2019-10-15 03:22:23,334 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-15 03:22:23,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2019-10-15 03:22:23,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 273. [2019-10-15 03:22:23,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 273 states. [2019-10-15 03:22:23,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 326 transitions. [2019-10-15 03:22:23,377 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 326 transitions. Word has length 47 [2019-10-15 03:22:23,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:22:23,378 INFO L462 AbstractCegarLoop]: Abstraction has 273 states and 326 transitions. [2019-10-15 03:22:23,378 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:22:23,378 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 326 transitions. [2019-10-15 03:22:23,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-15 03:22:23,384 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:22:23,384 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 03:22:23,387 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:22:23,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:22:23,388 INFO L82 PathProgramCache]: Analyzing trace with hash 2043331859, now seen corresponding path program 1 times [2019-10-15 03:22:23,388 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:22:23,388 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480442981] [2019-10-15 03:22:23,389 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:23,389 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:23,389 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:22:23,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:22:23,555 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 03:22:23,555 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480442981] [2019-10-15 03:22:23,556 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:22:23,556 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-15 03:22:23,556 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949123692] [2019-10-15 03:22:23,557 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-15 03:22:23,557 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:22:23,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-15 03:22:23,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-10-15 03:22:23,558 INFO L87 Difference]: Start difference. First operand 273 states and 326 transitions. Second operand 10 states. [2019-10-15 03:22:24,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:22:24,283 INFO L93 Difference]: Finished difference Result 987 states and 1226 transitions. [2019-10-15 03:22:24,283 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-15 03:22:24,284 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 51 [2019-10-15 03:22:24,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:22:24,291 INFO L225 Difference]: With dead ends: 987 [2019-10-15 03:22:24,291 INFO L226 Difference]: Without dead ends: 736 [2019-10-15 03:22:24,294 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 03:22:24,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2019-10-15 03:22:24,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 712. [2019-10-15 03:22:24,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 712 states. [2019-10-15 03:22:24,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 869 transitions. [2019-10-15 03:22:24,390 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 869 transitions. Word has length 51 [2019-10-15 03:22:24,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:22:24,391 INFO L462 AbstractCegarLoop]: Abstraction has 712 states and 869 transitions. [2019-10-15 03:22:24,391 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-15 03:22:24,391 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 869 transitions. [2019-10-15 03:22:24,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-10-15 03:22:24,402 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:22:24,402 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 03:22:24,402 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:22:24,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:22:24,403 INFO L82 PathProgramCache]: Analyzing trace with hash -1738769015, now seen corresponding path program 1 times [2019-10-15 03:22:24,403 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:22:24,404 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784369635] [2019-10-15 03:22:24,404 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:24,404 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:24,404 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:22:24,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:22:24,552 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 03:22:24,553 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784369635] [2019-10-15 03:22:24,553 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:22:24,553 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 03:22:24,553 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451533185] [2019-10-15 03:22:24,554 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 03:22:24,554 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:22:24,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 03:22:24,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 03:22:24,556 INFO L87 Difference]: Start difference. First operand 712 states and 869 transitions. Second operand 4 states. [2019-10-15 03:22:24,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:22:24,987 INFO L93 Difference]: Finished difference Result 1738 states and 2275 transitions. [2019-10-15 03:22:24,987 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 03:22:24,987 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2019-10-15 03:22:24,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:22:24,994 INFO L225 Difference]: With dead ends: 1738 [2019-10-15 03:22:24,995 INFO L226 Difference]: Without dead ends: 1048 [2019-10-15 03:22:24,998 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 03:22:25,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states. [2019-10-15 03:22:25,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 915. [2019-10-15 03:22:25,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 915 states. [2019-10-15 03:22:25,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 915 states and 1078 transitions. [2019-10-15 03:22:25,077 INFO L78 Accepts]: Start accepts. Automaton has 915 states and 1078 transitions. Word has length 54 [2019-10-15 03:22:25,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:22:25,077 INFO L462 AbstractCegarLoop]: Abstraction has 915 states and 1078 transitions. [2019-10-15 03:22:25,077 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 03:22:25,078 INFO L276 IsEmpty]: Start isEmpty. Operand 915 states and 1078 transitions. [2019-10-15 03:22:25,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-10-15 03:22:25,080 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:22:25,080 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 03:22:25,081 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:22:25,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:22:25,081 INFO L82 PathProgramCache]: Analyzing trace with hash -1908087697, now seen corresponding path program 1 times [2019-10-15 03:22:25,082 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:22:25,082 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369345501] [2019-10-15 03:22:25,082 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:25,082 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:25,083 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:22:25,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:22:25,210 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 03:22:25,210 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369345501] [2019-10-15 03:22:25,211 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [160281802] [2019-10-15 03:22:25,211 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:22:25,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:22:25,420 INFO L256 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-15 03:22:25,430 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:22:25,474 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 03:22:25,475 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:22:25,590 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 03:22:25,590 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 03:22:25,591 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [7] total 9 [2019-10-15 03:22:25,591 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506053678] [2019-10-15 03:22:25,592 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:22:25,592 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:22:25,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:22:25,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-10-15 03:22:25,593 INFO L87 Difference]: Start difference. First operand 915 states and 1078 transitions. Second operand 7 states. [2019-10-15 03:22:25,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:22:25,891 INFO L93 Difference]: Finished difference Result 928 states and 1094 transitions. [2019-10-15 03:22:25,892 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 03:22:25,892 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 79 [2019-10-15 03:22:25,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:22:25,898 INFO L225 Difference]: With dead ends: 928 [2019-10-15 03:22:25,899 INFO L226 Difference]: Without dead ends: 925 [2019-10-15 03:22:25,899 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 03:22:25,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2019-10-15 03:22:25,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 915. [2019-10-15 03:22:25,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 915 states. [2019-10-15 03:22:25,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 915 states and 1075 transitions. [2019-10-15 03:22:25,966 INFO L78 Accepts]: Start accepts. Automaton has 915 states and 1075 transitions. Word has length 79 [2019-10-15 03:22:25,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:22:25,966 INFO L462 AbstractCegarLoop]: Abstraction has 915 states and 1075 transitions. [2019-10-15 03:22:25,967 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:22:25,967 INFO L276 IsEmpty]: Start isEmpty. Operand 915 states and 1075 transitions. [2019-10-15 03:22:25,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-10-15 03:22:25,971 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:22:25,971 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:22:26,176 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:22:26,177 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:22:26,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:22:26,177 INFO L82 PathProgramCache]: Analyzing trace with hash 2132943944, now seen corresponding path program 1 times [2019-10-15 03:22:26,177 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:22:26,178 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171648736] [2019-10-15 03:22:26,178 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:26,178 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:26,178 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:22:26,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:22:26,247 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 03:22:26,248 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171648736] [2019-10-15 03:22:26,248 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:22:26,248 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:22:26,248 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917222837] [2019-10-15 03:22:26,250 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:22:26,250 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:22:26,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:22:26,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:22:26,251 INFO L87 Difference]: Start difference. First operand 915 states and 1075 transitions. Second operand 3 states. [2019-10-15 03:22:26,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:22:26,319 INFO L93 Difference]: Finished difference Result 1444 states and 1702 transitions. [2019-10-15 03:22:26,320 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:22:26,320 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 119 [2019-10-15 03:22:26,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:22:26,325 INFO L225 Difference]: With dead ends: 1444 [2019-10-15 03:22:26,326 INFO L226 Difference]: Without dead ends: 551 [2019-10-15 03:22:26,329 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:22:26,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2019-10-15 03:22:26,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 536. [2019-10-15 03:22:26,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 536 states. [2019-10-15 03:22:26,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 619 transitions. [2019-10-15 03:22:26,370 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 619 transitions. Word has length 119 [2019-10-15 03:22:26,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:22:26,370 INFO L462 AbstractCegarLoop]: Abstraction has 536 states and 619 transitions. [2019-10-15 03:22:26,370 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:22:26,371 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 619 transitions. [2019-10-15 03:22:26,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-15 03:22:26,381 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:22:26,381 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, 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] [2019-10-15 03:22:26,381 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:22:26,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:22:26,382 INFO L82 PathProgramCache]: Analyzing trace with hash -667374833, now seen corresponding path program 1 times [2019-10-15 03:22:26,382 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:22:26,382 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856274718] [2019-10-15 03:22:26,382 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:26,383 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:26,383 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:22:26,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:22:26,559 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 20 proven. 9 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2019-10-15 03:22:26,560 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856274718] [2019-10-15 03:22:26,560 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1915454411] [2019-10-15 03:22:26,560 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 03:22:26,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:22:26,831 INFO L256 TraceCheckSpWp]: Trace formula consists of 928 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-15 03:22:26,838 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:22:26,911 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 22 proven. 9 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-10-15 03:22:26,911 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:22:27,295 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 20 proven. 9 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2019-10-15 03:22:27,296 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2108385591] [2019-10-15 03:22:27,325 INFO L162 IcfgInterpreter]: Started Sifa with 98 locations of interest [2019-10-15 03:22:27,326 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:22:27,333 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:22:27,341 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:22:27,342 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 03:22:37,846 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-15 03:22:39,473 WARN L191 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-15 03:22:39,606 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-15 03:22:39,800 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-15 03:22:39,999 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-15 03:22:40,340 WARN L191 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:22:40,611 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:22:40,794 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:22:40,999 WARN L191 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:22:41,423 WARN L191 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 542 DAG size of output: 540 [2019-10-15 03:22:41,591 WARN L191 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:22:41,754 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:22:41,908 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:22:42,022 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:22:42,155 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:22:42,165 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 184 for LOIs [2019-10-15 03:22:42,393 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 542 for LOIs [2019-10-15 03:22:42,540 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-15 03:22:42,651 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-15 03:22:42,787 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:42,932 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-15 03:22:43,056 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-15 03:22:43,226 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:43,346 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-15 03:22:43,455 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-15 03:22:43,582 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:43,816 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 542 [2019-10-15 03:22:44,042 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:44,268 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-15 03:22:44,389 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:44,529 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-15 03:22:44,750 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:44,858 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-15 03:22:45,074 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:45,200 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-15 03:22:45,420 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:45,734 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:45,951 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-15 03:22:46,092 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:46,410 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:46,727 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:46,841 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-15 03:22:46,948 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-15 03:22:47,067 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:47,222 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:47,333 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:47,476 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:47,698 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-15 03:22:47,836 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:47,973 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:48,083 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:48,195 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:48,314 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:48,457 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-15 03:22:48,569 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-15 03:22:48,698 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:48,929 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-15 03:22:49,045 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-15 03:22:49,174 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:49,287 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-15 03:22:49,410 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-15 03:22:49,533 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:49,652 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-15 03:22:49,777 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-15 03:22:49,933 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:50,049 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:50,162 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:50,290 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-15 03:22:50,419 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:50,535 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:50,730 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-15 03:22:50,942 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 564 DAG size of output: 560 [2019-10-15 03:22:51,065 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:51,199 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-15 03:22:51,314 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:51,430 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:51,558 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-15 03:22:51,779 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-15 03:22:51,888 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:52,024 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:52,280 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-15 03:22:52,391 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:52,522 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:52,633 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:52,746 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:52,867 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:53,004 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:53,118 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:53,244 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:53,480 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-15 03:22:53,593 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:53,724 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:53,928 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-15 03:22:54,040 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:54,161 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:54,360 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-15 03:22:54,480 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-15 03:22:54,630 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:54,848 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 564 DAG size of output: 560 [2019-10-15 03:22:54,962 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:55,093 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-15 03:22:55,310 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-15 03:22:55,423 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:55,546 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:55,751 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-15 03:22:55,860 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:55,998 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:56,107 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:56,221 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:56,338 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:56,560 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-15 03:22:56,668 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:56,791 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:56,996 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-15 03:22:57,106 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:57,243 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:57,352 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:57,464 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:57,582 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:57,714 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:57,825 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:57,953 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:58,163 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-15 03:22:58,272 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-15 03:22:58,400 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:58,613 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-15 03:22:58,722 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:58,842 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:59,049 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-15 03:22:59,158 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:59,277 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:59,487 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556