java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product60.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:15:40,504 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:15:40,505 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:15:40,517 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:15:40,518 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:15:40,519 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:15:40,520 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:15:40,522 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:15:40,525 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:15:40,532 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:15:40,533 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:15:40,535 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:15:40,535 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:15:40,537 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:15:40,539 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:15:40,540 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:15:40,541 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:15:40,542 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:15:40,546 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:15:40,547 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:15:40,551 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:15:40,553 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:15:40,555 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:15:40,556 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:15:40,560 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:15:40,561 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:15:40,561 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:15:40,563 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:15:40,564 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:15:40,566 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:15:40,566 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:15:40,567 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:15:40,568 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:15:40,568 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:15:40,572 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:15:40,572 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:15:40,573 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:15:40,573 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:15:40,573 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:15:40,575 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:15:40,578 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:15:40,579 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 23:15:40,599 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:15:40,600 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:15:40,601 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:15:40,601 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:15:40,601 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:15:40,601 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:15:40,602 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:15:40,602 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:15:40,602 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:15:40,602 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:15:40,602 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:15:40,603 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:15:40,603 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:15:40,603 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:15:40,603 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:15:40,603 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:15:40,604 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:15:40,604 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:15:40,604 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:15:40,604 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:15:40,604 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:15:40,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:15:40,605 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:15:40,605 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:15:40,605 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:15:40,605 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:15:40,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:15:40,606 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:15:40,606 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 23:15:40,900 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:15:40,913 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:15:40,917 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:15:40,918 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:15:40,919 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:15:40,919 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product60.cil.c [2019-10-13 23:15:40,983 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/004902b55/1ce757248d044360bd228e5b2076c19b/FLAGa30060463 [2019-10-13 23:15:41,569 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:15:41,569 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product60.cil.c [2019-10-13 23:15:41,592 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/004902b55/1ce757248d044360bd228e5b2076c19b/FLAGa30060463 [2019-10-13 23:15:41,856 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/004902b55/1ce757248d044360bd228e5b2076c19b [2019-10-13 23:15:41,868 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:15:41,870 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:15:41,873 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:15:41,873 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:15:41,876 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:15:41,877 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:15:41" (1/1) ... [2019-10-13 23:15:41,880 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2007b307 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:15:41, skipping insertion in model container [2019-10-13 23:15:41,881 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:15:41" (1/1) ... [2019-10-13 23:15:41,889 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:15:41,958 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:15:42,404 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:15:42,425 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:15:42,542 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:15:42,577 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:15:42,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:15:42 WrapperNode [2019-10-13 23:15:42,578 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:15:42,578 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:15:42,579 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:15:42,579 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:15:42,589 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:15:42" (1/1) ... [2019-10-13 23:15:42,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:15:42" (1/1) ... [2019-10-13 23:15:42,608 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:15:42" (1/1) ... [2019-10-13 23:15:42,614 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:15:42" (1/1) ... [2019-10-13 23:15:42,641 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:15:42" (1/1) ... [2019-10-13 23:15:42,667 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:15:42" (1/1) ... [2019-10-13 23:15:42,673 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:15:42" (1/1) ... [2019-10-13 23:15:42,693 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:15:42,693 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:15:42,693 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:15:42,694 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:15:42,695 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:15:42" (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 23:15:42,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:15:42,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:15:42,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:15:42,773 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 23:15:42,774 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 23:15:42,775 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 23:15:42,775 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 23:15:42,776 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 23:15:42,776 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 23:15:42,777 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 23:15:42,777 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-13 23:15:42,778 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:15:42,778 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 23:15:42,778 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 23:15:42,778 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:15:42,778 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 23:15:42,781 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:15:42,781 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:15:42,781 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:15:42,781 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:15:42,781 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:15:42,782 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:15:42,782 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:15:42,782 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:15:42,782 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:15:42,782 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:15:42,783 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:15:42,783 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:15:42,783 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 23:15:42,783 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-13 23:15:42,783 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 23:15:42,783 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 23:15:42,784 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 23:15:42,784 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 23:15:42,784 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 23:15:42,784 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 23:15:42,785 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 23:15:42,785 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 23:15:42,785 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 23:15:42,785 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-13 23:15:42,785 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-13 23:15:42,785 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-13 23:15:42,785 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-10-13 23:15:42,786 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-10-13 23:15:42,786 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:15:42,786 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:15:42,786 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:15:42,786 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 23:15:42,786 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 23:15:42,787 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 23:15:42,787 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 23:15:42,787 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 23:15:42,787 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 23:15:42,787 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 23:15:42,788 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-13 23:15:42,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:15:42,788 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:15:42,788 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 23:15:42,789 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 23:15:42,789 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 23:15:42,790 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 23:15:42,790 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:15:42,790 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-10-13 23:15:42,790 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:15:42,790 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 23:15:42,791 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:15:42,791 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:15:42,791 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:15:42,791 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:15:42,791 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:15:42,791 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-13 23:15:42,792 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-13 23:15:42,792 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:15:42,793 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:15:42,793 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:15:42,793 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:15:42,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:15:42,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:15:42,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:15:42,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:15:42,794 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:15:42,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:15:42,795 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:15:42,796 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:15:42,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:15:42,796 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:15:42,797 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:15:42,797 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:15:42,797 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 23:15:42,797 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 23:15:42,797 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 23:15:42,798 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-10-13 23:15:42,798 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 23:15:42,798 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-13 23:15:42,798 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 23:15:42,798 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 23:15:42,799 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-13 23:15:42,799 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 23:15:42,799 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 23:15:42,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:15:42,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:15:42,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:15:44,412 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:15:44,413 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 23:15:44,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:15:44 BoogieIcfgContainer [2019-10-13 23:15:44,415 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:15:44,416 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:15:44,416 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:15:44,420 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:15:44,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:15:41" (1/3) ... [2019-10-13 23:15:44,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51365085 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:15:44, skipping insertion in model container [2019-10-13 23:15:44,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:15:42" (2/3) ... [2019-10-13 23:15:44,422 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51365085 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:15:44, skipping insertion in model container [2019-10-13 23:15:44,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:15:44" (3/3) ... [2019-10-13 23:15:44,424 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product60.cil.c [2019-10-13 23:15:44,434 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:15:44,444 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:15:44,456 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:15:44,490 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:15:44,490 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:15:44,491 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:15:44,491 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:15:44,491 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:15:44,491 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:15:44,493 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:15:44,493 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:15:44,524 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states. [2019-10-13 23:15:44,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-13 23:15:44,538 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:15:44,540 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:15:44,542 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:15:44,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:15:44,550 INFO L82 PathProgramCache]: Analyzing trace with hash 203835508, now seen corresponding path program 1 times [2019-10-13 23:15:44,562 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:15:44,564 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011717100] [2019-10-13 23:15:44,565 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:44,565 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:44,565 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:15:44,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:15:45,032 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 23:15:45,033 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011717100] [2019-10-13 23:15:45,034 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:15:45,035 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:15:45,035 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294129633] [2019-10-13 23:15:45,041 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:15:45,042 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:15:45,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:15:45,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:15:45,057 INFO L87 Difference]: Start difference. First operand 164 states. Second operand 2 states. [2019-10-13 23:15:45,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:15:45,101 INFO L93 Difference]: Finished difference Result 258 states and 313 transitions. [2019-10-13 23:15:45,101 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:15:45,103 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-10-13 23:15:45,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:15:45,118 INFO L225 Difference]: With dead ends: 258 [2019-10-13 23:15:45,118 INFO L226 Difference]: Without dead ends: 131 [2019-10-13 23:15:45,123 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 23:15:45,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2019-10-13 23:15:45,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2019-10-13 23:15:45,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2019-10-13 23:15:45,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 152 transitions. [2019-10-13 23:15:45,182 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 152 transitions. Word has length 46 [2019-10-13 23:15:45,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:15:45,183 INFO L462 AbstractCegarLoop]: Abstraction has 131 states and 152 transitions. [2019-10-13 23:15:45,183 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:15:45,184 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 152 transitions. [2019-10-13 23:15:45,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-13 23:15:45,188 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:15:45,188 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] [2019-10-13 23:15:45,188 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:15:45,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:15:45,189 INFO L82 PathProgramCache]: Analyzing trace with hash -245440472, now seen corresponding path program 1 times [2019-10-13 23:15:45,189 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:15:45,190 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192554088] [2019-10-13 23:15:45,190 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:45,190 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:45,190 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:15:45,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:15:45,345 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 23:15:45,346 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192554088] [2019-10-13 23:15:45,346 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:15:45,346 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:15:45,347 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153090290] [2019-10-13 23:15:45,349 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:15:45,349 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:15:45,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:15:45,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:15:45,350 INFO L87 Difference]: Start difference. First operand 131 states and 152 transitions. Second operand 3 states. [2019-10-13 23:15:45,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:15:45,397 INFO L93 Difference]: Finished difference Result 206 states and 238 transitions. [2019-10-13 23:15:45,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:15:45,398 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-10-13 23:15:45,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:15:45,400 INFO L225 Difference]: With dead ends: 206 [2019-10-13 23:15:45,401 INFO L226 Difference]: Without dead ends: 123 [2019-10-13 23:15:45,406 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 23:15:45,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2019-10-13 23:15:45,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2019-10-13 23:15:45,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2019-10-13 23:15:45,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 141 transitions. [2019-10-13 23:15:45,435 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 141 transitions. Word has length 47 [2019-10-13 23:15:45,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:15:45,435 INFO L462 AbstractCegarLoop]: Abstraction has 123 states and 141 transitions. [2019-10-13 23:15:45,435 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:15:45,435 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 141 transitions. [2019-10-13 23:15:45,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-13 23:15:45,438 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:15:45,438 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] [2019-10-13 23:15:45,439 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:15:45,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:15:45,439 INFO L82 PathProgramCache]: Analyzing trace with hash -1796950977, now seen corresponding path program 1 times [2019-10-13 23:15:45,439 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:15:45,440 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984620346] [2019-10-13 23:15:45,440 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:45,440 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:45,440 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:15:45,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:15:45,586 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 23:15:45,587 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984620346] [2019-10-13 23:15:45,587 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:15:45,587 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:15:45,588 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252320250] [2019-10-13 23:15:45,590 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:15:45,590 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:15:45,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:15:45,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:15:45,591 INFO L87 Difference]: Start difference. First operand 123 states and 141 transitions. Second operand 7 states. [2019-10-13 23:15:46,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:15:46,120 INFO L93 Difference]: Finished difference Result 365 states and 435 transitions. [2019-10-13 23:15:46,121 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 23:15:46,121 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2019-10-13 23:15:46,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:15:46,126 INFO L225 Difference]: With dead ends: 365 [2019-10-13 23:15:46,127 INFO L226 Difference]: Without dead ends: 267 [2019-10-13 23:15:46,130 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 [2019-10-13 23:15:46,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2019-10-13 23:15:46,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 255. [2019-10-13 23:15:46,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2019-10-13 23:15:46,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 303 transitions. [2019-10-13 23:15:46,177 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 303 transitions. Word has length 51 [2019-10-13 23:15:46,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:15:46,178 INFO L462 AbstractCegarLoop]: Abstraction has 255 states and 303 transitions. [2019-10-13 23:15:46,178 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:15:46,178 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 303 transitions. [2019-10-13 23:15:46,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-10-13 23:15:46,181 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:15:46,181 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:15:46,182 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:15:46,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:15:46,185 INFO L82 PathProgramCache]: Analyzing trace with hash -185841491, now seen corresponding path program 1 times [2019-10-13 23:15:46,186 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:15:46,186 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915949617] [2019-10-13 23:15:46,186 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:46,186 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:46,186 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:15:46,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:15:46,368 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 23:15:46,369 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915949617] [2019-10-13 23:15:46,369 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:15:46,369 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 23:15:46,370 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635610391] [2019-10-13 23:15:46,370 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 23:15:46,371 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:15:46,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 23:15:46,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 23:15:46,376 INFO L87 Difference]: Start difference. First operand 255 states and 303 transitions. Second operand 6 states. [2019-10-13 23:15:46,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:15:46,655 INFO L93 Difference]: Finished difference Result 697 states and 846 transitions. [2019-10-13 23:15:46,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 23:15:46,655 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 55 [2019-10-13 23:15:46,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:15:46,660 INFO L225 Difference]: With dead ends: 697 [2019-10-13 23:15:46,661 INFO L226 Difference]: Without dead ends: 467 [2019-10-13 23:15:46,662 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-13 23:15:46,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2019-10-13 23:15:46,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 455. [2019-10-13 23:15:46,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 455 states. [2019-10-13 23:15:46,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 543 transitions. [2019-10-13 23:15:46,753 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 543 transitions. Word has length 55 [2019-10-13 23:15:46,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:15:46,754 INFO L462 AbstractCegarLoop]: Abstraction has 455 states and 543 transitions. [2019-10-13 23:15:46,755 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 23:15:46,755 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 543 transitions. [2019-10-13 23:15:46,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-10-13 23:15:46,761 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:15:46,761 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:15:46,762 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:15:46,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:15:46,762 INFO L82 PathProgramCache]: Analyzing trace with hash -2036644305, now seen corresponding path program 1 times [2019-10-13 23:15:46,762 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:15:46,763 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456314828] [2019-10-13 23:15:46,763 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:46,763 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:46,764 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:15:46,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:15:46,864 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 23:15:46,864 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456314828] [2019-10-13 23:15:46,865 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:15:46,865 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:15:46,865 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715362776] [2019-10-13 23:15:46,866 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:15:46,866 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:15:46,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:15:46,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:15:46,867 INFO L87 Difference]: Start difference. First operand 455 states and 543 transitions. Second operand 7 states. [2019-10-13 23:15:47,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:15:47,576 INFO L93 Difference]: Finished difference Result 1187 states and 1538 transitions. [2019-10-13 23:15:47,576 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 23:15:47,576 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 58 [2019-10-13 23:15:47,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:15:47,582 INFO L225 Difference]: With dead ends: 1187 [2019-10-13 23:15:47,583 INFO L226 Difference]: Without dead ends: 757 [2019-10-13 23:15:47,585 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-13 23:15:47,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2019-10-13 23:15:47,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 668. [2019-10-13 23:15:47,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 668 states. [2019-10-13 23:15:47,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 796 transitions. [2019-10-13 23:15:47,699 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 796 transitions. Word has length 58 [2019-10-13 23:15:47,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:15:47,700 INFO L462 AbstractCegarLoop]: Abstraction has 668 states and 796 transitions. [2019-10-13 23:15:47,700 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:15:47,700 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 796 transitions. [2019-10-13 23:15:47,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-10-13 23:15:47,706 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:15:47,706 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:15:47,707 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:15:47,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:15:47,707 INFO L82 PathProgramCache]: Analyzing trace with hash -2002651380, now seen corresponding path program 1 times [2019-10-13 23:15:47,707 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:15:47,708 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028020227] [2019-10-13 23:15:47,708 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:47,708 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:47,708 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:15:47,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:15:47,959 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 23:15:47,959 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028020227] [2019-10-13 23:15:47,960 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1198520728] [2019-10-13 23:15:47,960 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 23:15:48,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:15:48,189 INFO L256 TraceCheckSpWp]: Trace formula consists of 785 conjuncts, 15 conjunts are in the unsatisfiable core [2019-10-13 23:15:48,202 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:15:48,260 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:15:48,261 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:15:48,392 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:15:48,393 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-13 23:15:48,393 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [14] total 15 [2019-10-13 23:15:48,393 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482658189] [2019-10-13 23:15:48,394 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:15:48,394 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:15:48,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:15:48,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-10-13 23:15:48,395 INFO L87 Difference]: Start difference. First operand 668 states and 796 transitions. Second operand 3 states. [2019-10-13 23:15:48,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:15:48,474 INFO L93 Difference]: Finished difference Result 945 states and 1152 transitions. [2019-10-13 23:15:48,475 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:15:48,475 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 89 [2019-10-13 23:15:48,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:15:48,485 INFO L225 Difference]: With dead ends: 945 [2019-10-13 23:15:48,486 INFO L226 Difference]: Without dead ends: 942 [2019-10-13 23:15:48,487 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-10-13 23:15:48,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2019-10-13 23:15:48,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 914. [2019-10-13 23:15:48,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 914 states. [2019-10-13 23:15:48,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 914 states to 914 states and 1115 transitions. [2019-10-13 23:15:48,585 INFO L78 Accepts]: Start accepts. Automaton has 914 states and 1115 transitions. Word has length 89 [2019-10-13 23:15:48,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:15:48,586 INFO L462 AbstractCegarLoop]: Abstraction has 914 states and 1115 transitions. [2019-10-13 23:15:48,586 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:15:48,586 INFO L276 IsEmpty]: Start isEmpty. Operand 914 states and 1115 transitions. [2019-10-13 23:15:48,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-10-13 23:15:48,592 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:15:48,592 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-13 23:15:48,800 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:15:48,801 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:15:48,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:15:48,801 INFO L82 PathProgramCache]: Analyzing trace with hash -479479501, now seen corresponding path program 1 times [2019-10-13 23:15:48,802 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:15:48,802 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296268177] [2019-10-13 23:15:48,802 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:48,802 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:48,802 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:15:48,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:15:49,039 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 21 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-13 23:15:49,040 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296268177] [2019-10-13 23:15:49,040 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [309832774] [2019-10-13 23:15:49,040 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 23:15:49,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:15:49,260 INFO L256 TraceCheckSpWp]: Trace formula consists of 928 conjuncts, 25 conjunts are in the unsatisfiable core [2019-10-13 23:15:49,266 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:15:49,384 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-13 23:15:49,384 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:15:50,193 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 21 proven. 7 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-10-13 23:15:50,194 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 23:15:50,194 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [14, 12] total 25 [2019-10-13 23:15:50,194 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898313919] [2019-10-13 23:15:50,196 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 23:15:50,196 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:15:50,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 23:15:50,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=505, Unknown=0, NotChecked=0, Total=600 [2019-10-13 23:15:50,198 INFO L87 Difference]: Start difference. First operand 914 states and 1115 transitions. Second operand 11 states. [2019-10-13 23:15:51,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:15:51,377 INFO L93 Difference]: Finished difference Result 2088 states and 2638 transitions. [2019-10-13 23:15:51,378 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-13 23:15:51,378 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 142 [2019-10-13 23:15:51,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:15:51,386 INFO L225 Difference]: With dead ends: 2088 [2019-10-13 23:15:51,386 INFO L226 Difference]: Without dead ends: 1199 [2019-10-13 23:15:51,390 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=131, Invalid=681, Unknown=0, NotChecked=0, Total=812 [2019-10-13 23:15:51,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1199 states. [2019-10-13 23:15:51,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1199 to 1175. [2019-10-13 23:15:51,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1175 states. [2019-10-13 23:15:51,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1175 states to 1175 states and 1426 transitions. [2019-10-13 23:15:51,467 INFO L78 Accepts]: Start accepts. Automaton has 1175 states and 1426 transitions. Word has length 142 [2019-10-13 23:15:51,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:15:51,468 INFO L462 AbstractCegarLoop]: Abstraction has 1175 states and 1426 transitions. [2019-10-13 23:15:51,468 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 23:15:51,469 INFO L276 IsEmpty]: Start isEmpty. Operand 1175 states and 1426 transitions. [2019-10-13 23:15:51,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-10-13 23:15:51,475 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:15:51,475 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:15:51,681 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:15:51,682 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:15:51,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:15:51,683 INFO L82 PathProgramCache]: Analyzing trace with hash 1729625035, now seen corresponding path program 1 times [2019-10-13 23:15:51,683 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:15:51,683 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21344047] [2019-10-13 23:15:51,684 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:51,684 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:51,684 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:15:51,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:15:51,928 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 39 proven. 14 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2019-10-13 23:15:51,929 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21344047] [2019-10-13 23:15:51,929 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1329643769] [2019-10-13 23:15:51,929 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:15:52,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:15:52,228 INFO L256 TraceCheckSpWp]: Trace formula consists of 1056 conjuncts, 33 conjunts are in the unsatisfiable core [2019-10-13 23:15:52,234 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:15:52,384 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:15:52,468 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:15:52,554 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2019-10-13 23:15:52,554 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:15:53,347 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:15:53,921 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:15:53,922 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:15:53,922 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:15:53,960 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:15:54,371 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 39 proven. 14 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2019-10-13 23:15:54,372 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 23:15:54,372 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [14, 13] total 35 [2019-10-13 23:15:54,372 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313089166] [2019-10-13 23:15:54,373 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-13 23:15:54,373 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:15:54,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-13 23:15:54,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=1039, Unknown=0, NotChecked=0, Total=1190 [2019-10-13 23:15:54,375 INFO L87 Difference]: Start difference. First operand 1175 states and 1426 transitions. Second operand 14 states. [2019-10-13 23:15:57,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:15:57,283 INFO L93 Difference]: Finished difference Result 3192 states and 4014 transitions. [2019-10-13 23:15:57,285 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-10-13 23:15:57,285 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 189 [2019-10-13 23:15:57,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:15:57,299 INFO L225 Difference]: With dead ends: 3192 [2019-10-13 23:15:57,299 INFO L226 Difference]: Without dead ends: 2042 [2019-10-13 23:15:57,307 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 355 SyntacticMatches, 8 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 818 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=386, Invalid=2476, Unknown=0, NotChecked=0, Total=2862 [2019-10-13 23:15:57,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2042 states. [2019-10-13 23:15:57,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2042 to 1910. [2019-10-13 23:15:57,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1910 states. [2019-10-13 23:15:57,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1910 states to 1910 states and 2334 transitions. [2019-10-13 23:15:57,452 INFO L78 Accepts]: Start accepts. Automaton has 1910 states and 2334 transitions. Word has length 189 [2019-10-13 23:15:57,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:15:57,452 INFO L462 AbstractCegarLoop]: Abstraction has 1910 states and 2334 transitions. [2019-10-13 23:15:57,452 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-13 23:15:57,452 INFO L276 IsEmpty]: Start isEmpty. Operand 1910 states and 2334 transitions. [2019-10-13 23:15:57,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-10-13 23:15:57,461 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:15:57,462 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:15:57,667 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:15:57,668 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:15:57,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:15:57,668 INFO L82 PathProgramCache]: Analyzing trace with hash 2112061461, now seen corresponding path program 1 times [2019-10-13 23:15:57,668 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:15:57,668 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36156653] [2019-10-13 23:15:57,669 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:57,669 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:57,669 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:15:57,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:15:58,070 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 41 proven. 16 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2019-10-13 23:15:58,070 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36156653] [2019-10-13 23:15:58,071 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2003720850] [2019-10-13 23:15:58,071 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:15:58,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:15:58,330 INFO L256 TraceCheckSpWp]: Trace formula consists of 1062 conjuncts, 56 conjunts are in the unsatisfiable core [2019-10-13 23:15:58,346 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:15:58,472 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:15:58,510 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:15:58,516 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:15:58,519 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:15:58,726 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 94 proven. 14 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-13 23:15:58,726 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:15:59,092 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:15:59,093 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:15:59,395 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:15:59,573 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:15:59,640 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:15:59,662 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:15:59,747 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:15:59,748 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:15:59,783 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:15:59,907 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:15:59,929 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:16:00,044 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:16:00,045 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:16:00,099 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:16:00,290 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 47 proven. 12 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2019-10-13 23:16:00,291 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [724547343] [2019-10-13 23:16:00,323 INFO L162 IcfgInterpreter]: Started Sifa with 111 locations of interest [2019-10-13 23:16:00,324 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:16:00,331 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:16:00,341 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:16:00,342 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 23:16:08,393 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2019-10-13 23:16:10,221 WARN L191 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-13 23:16:10,425 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-13 23:16:10,547 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-13 23:16:10,681 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-13 23:16:10,920 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:16:11,156 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:16:11,429 WARN L191 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:16:11,773 WARN L191 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:16:12,180 WARN L191 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 546 DAG size of output: 544 [2019-10-13 23:16:12,368 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:16:12,530 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:16:12,721 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:16:12,836 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:16:12,955 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 187 for LOIs [2019-10-13 23:16:13,197 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 550 for LOIs [2019-10-13 23:16:13,307 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-13 23:16:13,450 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-13 23:16:13,597 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:13,718 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-13 23:16:13,855 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-13 23:16:13,978 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:14,118 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-13 23:16:14,224 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-13 23:16:14,350 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:14,592 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 550 [2019-10-13 23:16:14,707 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-13 23:16:14,872 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:15,005 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-13 23:16:15,227 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:15,342 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-13 23:16:15,448 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-13 23:16:15,568 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:15,691 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-13 23:16:15,922 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:16,239 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:16,343 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-13 23:16:16,454 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-13 23:16:16,607 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:16,809 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-13 23:16:16,930 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:17,131 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-13 23:16:17,259 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:17,401 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-13 23:16:17,621 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:17,944 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:18,096 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:18,209 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:18,343 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:18,623 WARN L191 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:16:18,734 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:18,867 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564