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_spec5_product49.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:23:28,613 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:23:28,616 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:23:28,630 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:23:28,630 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:23:28,631 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:23:28,633 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:23:28,634 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:23:28,642 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:23:28,642 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:23:28,643 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:23:28,649 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:23:28,649 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:23:28,650 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:23:28,651 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:23:28,652 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:23:28,653 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:23:28,654 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:23:28,655 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:23:28,657 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:23:28,658 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:23:28,659 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:23:28,661 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:23:28,661 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:23:28,663 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:23:28,663 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:23:28,664 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:23:28,664 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:23:28,665 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:23:28,666 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:23:28,666 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:23:28,667 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:23:28,667 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:23:28,668 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:23:28,669 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:23:28,669 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:23:28,670 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:23:28,670 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:23:28,670 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:23:28,671 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:23:28,672 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:23:28,673 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 03:23:28,686 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:23:28,686 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:23:28,688 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:23:28,688 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:23:28,688 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:23:28,688 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:23:28,688 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:23:28,689 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:23:28,689 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:23:28,689 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:23:28,689 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:23:28,689 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:23:28,689 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:23:28,690 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:23:28,690 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:23:28,690 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:23:28,690 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:23:28,690 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:23:28,691 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:23:28,691 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:23:28,691 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:23:28,691 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:23:28,691 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:23:28,692 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:23:28,692 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:23:28,692 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:23:28,692 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:23:28,692 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:23:28,693 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 03:23:28,960 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:23:28,983 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:23:28,987 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:23:28,988 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:23:28,988 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:23:28,989 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product49.cil.c [2019-10-15 03:23:29,079 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4f691020/fd7aa4b5175a46c9b5cfc66c35e627de/FLAG7cc13fcfc [2019-10-15 03:23:29,556 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:23:29,556 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product49.cil.c [2019-10-15 03:23:29,576 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4f691020/fd7aa4b5175a46c9b5cfc66c35e627de/FLAG7cc13fcfc [2019-10-15 03:23:29,906 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4f691020/fd7aa4b5175a46c9b5cfc66c35e627de [2019-10-15 03:23:29,915 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:23:29,916 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:23:29,917 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:23:29,917 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:23:29,920 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:23:29,921 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:23:29" (1/1) ... [2019-10-15 03:23:29,924 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10a48b93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:29, skipping insertion in model container [2019-10-15 03:23:29,924 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:23:29" (1/1) ... [2019-10-15 03:23:29,932 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:23:29,987 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:23:30,491 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:23:30,506 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:23:30,612 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:23:30,646 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:23:30,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:30 WrapperNode [2019-10-15 03:23:30,646 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:23:30,647 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:23:30,647 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:23:30,647 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:23:30,658 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:30" (1/1) ... [2019-10-15 03:23:30,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:30" (1/1) ... [2019-10-15 03:23:30,677 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:30" (1/1) ... [2019-10-15 03:23:30,678 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:30" (1/1) ... [2019-10-15 03:23:30,707 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:30" (1/1) ... [2019-10-15 03:23:30,718 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:30" (1/1) ... [2019-10-15 03:23:30,723 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:30" (1/1) ... [2019-10-15 03:23:30,730 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:23:30,731 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:23:30,731 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:23:30,731 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:23:30,732 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:30" (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 03:23:30,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:23:30,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:23:30,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:23:30,792 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-15 03:23:30,792 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-15 03:23:30,792 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-15 03:23:30,792 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-15 03:23:30,792 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-15 03:23:30,793 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-15 03:23:30,793 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-15 03:23:30,793 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-15 03:23:30,793 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-15 03:23:30,793 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-15 03:23:30,794 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-15 03:23:30,794 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:23:30,794 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-15 03:23:30,794 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-15 03:23:30,794 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-15 03:23:30,794 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-15 03:23:30,795 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-15 03:23:30,795 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-15 03:23:30,795 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-15 03:23:30,795 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-15 03:23:30,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:23:30,795 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-15 03:23:30,796 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-15 03:23:30,796 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:23:30,796 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-15 03:23:30,796 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:23:30,796 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:23:30,796 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:23:30,797 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:23:30,797 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:23:30,797 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:23:30,797 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:23:30,797 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:23:30,797 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:23:30,798 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:23:30,798 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:23:30,798 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-15 03:23:30,798 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-15 03:23:30,798 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-15 03:23:30,798 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:23:30,799 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:23:30,799 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:23:30,799 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-15 03:23:30,799 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-15 03:23:30,799 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-15 03:23:30,799 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-15 03:23:30,799 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-15 03:23:30,800 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-15 03:23:30,800 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-15 03:23:30,800 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-15 03:23:30,800 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-15 03:23:30,800 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-15 03:23:30,800 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-15 03:23:30,800 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-15 03:23:30,801 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-15 03:23:30,801 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-15 03:23:30,801 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-15 03:23:30,801 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-15 03:23:30,801 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-15 03:23:30,802 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-15 03:23:30,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:23:30,802 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-15 03:23:30,802 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-15 03:23:30,802 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-15 03:23:30,802 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:23:30,802 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-15 03:23:30,803 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:23:30,803 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-15 03:23:30,803 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:23:30,803 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-15 03:23:30,803 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-15 03:23:30,803 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:23:30,804 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:23:30,804 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:23:30,804 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:23:30,804 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:23:30,804 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:23:30,804 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:23:30,805 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:23:30,805 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:23:30,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:23:30,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:23:30,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:23:30,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:23:30,806 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:23:30,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:23:30,806 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:23:30,806 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:23:30,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:23:30,806 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:23:30,806 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:23:30,807 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:23:30,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:23:30,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:23:30,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:23:32,414 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:23:32,414 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-15 03:23:32,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:23:32 BoogieIcfgContainer [2019-10-15 03:23:32,416 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:23:32,417 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:23:32,417 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:23:32,421 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:23:32,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:23:29" (1/3) ... [2019-10-15 03:23:32,422 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40d287eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:23:32, skipping insertion in model container [2019-10-15 03:23:32,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:30" (2/3) ... [2019-10-15 03:23:32,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40d287eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:23:32, skipping insertion in model container [2019-10-15 03:23:32,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:23:32" (3/3) ... [2019-10-15 03:23:32,425 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product49.cil.c [2019-10-15 03:23:32,436 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:23:32,445 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:23:32,458 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:23:32,487 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:23:32,487 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:23:32,487 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:23:32,487 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:23:32,488 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:23:32,488 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:23:32,488 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:23:32,488 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:23:32,511 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states. [2019-10-15 03:23:32,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-15 03:23:32,522 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:23:32,523 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] [2019-10-15 03:23:32,525 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:23:32,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:23:32,531 INFO L82 PathProgramCache]: Analyzing trace with hash 199906964, now seen corresponding path program 1 times [2019-10-15 03:23:32,542 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:23:32,542 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342198597] [2019-10-15 03:23:32,543 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:32,543 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:32,543 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:23:32,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:23:32,864 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:23:32,865 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342198597] [2019-10-15 03:23:32,866 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:23:32,867 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:23:32,867 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490238285] [2019-10-15 03:23:32,874 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:23:32,875 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:23:32,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:23:32,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:23:32,902 INFO L87 Difference]: Start difference. First operand 147 states. Second operand 2 states. [2019-10-15 03:23:32,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:23:32,970 INFO L93 Difference]: Finished difference Result 224 states and 269 transitions. [2019-10-15 03:23:32,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:23:32,972 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2019-10-15 03:23:32,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:23:32,985 INFO L225 Difference]: With dead ends: 224 [2019-10-15 03:23:32,985 INFO L226 Difference]: Without dead ends: 114 [2019-10-15 03:23:32,990 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 03:23:33,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2019-10-15 03:23:33,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2019-10-15 03:23:33,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2019-10-15 03:23:33,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 130 transitions. [2019-10-15 03:23:33,044 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 130 transitions. Word has length 52 [2019-10-15 03:23:33,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:23:33,045 INFO L462 AbstractCegarLoop]: Abstraction has 114 states and 130 transitions. [2019-10-15 03:23:33,045 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:23:33,045 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 130 transitions. [2019-10-15 03:23:33,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-10-15 03:23:33,049 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:23:33,049 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] [2019-10-15 03:23:33,050 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:23:33,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:23:33,050 INFO L82 PathProgramCache]: Analyzing trace with hash 65146363, now seen corresponding path program 1 times [2019-10-15 03:23:33,051 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:23:33,051 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563530383] [2019-10-15 03:23:33,051 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:33,051 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:33,052 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:23:33,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:23:33,234 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:23:33,235 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563530383] [2019-10-15 03:23:33,235 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:23:33,235 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:23:33,236 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833645871] [2019-10-15 03:23:33,238 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:23:33,239 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:23:33,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:23:33,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:23:33,240 INFO L87 Difference]: Start difference. First operand 114 states and 130 transitions. Second operand 3 states. [2019-10-15 03:23:33,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:23:33,273 INFO L93 Difference]: Finished difference Result 182 states and 208 transitions. [2019-10-15 03:23:33,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:23:33,274 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2019-10-15 03:23:33,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:23:33,276 INFO L225 Difference]: With dead ends: 182 [2019-10-15 03:23:33,276 INFO L226 Difference]: Without dead ends: 106 [2019-10-15 03:23:33,278 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 03:23:33,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2019-10-15 03:23:33,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2019-10-15 03:23:33,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-10-15 03:23:33,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 119 transitions. [2019-10-15 03:23:33,296 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 119 transitions. Word has length 53 [2019-10-15 03:23:33,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:23:33,296 INFO L462 AbstractCegarLoop]: Abstraction has 106 states and 119 transitions. [2019-10-15 03:23:33,296 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:23:33,296 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 119 transitions. [2019-10-15 03:23:33,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-10-15 03:23:33,299 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:23:33,299 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] [2019-10-15 03:23:33,299 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:23:33,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:23:33,300 INFO L82 PathProgramCache]: Analyzing trace with hash 720940157, now seen corresponding path program 1 times [2019-10-15 03:23:33,300 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:23:33,300 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855323022] [2019-10-15 03:23:33,301 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:33,301 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:33,301 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:23:33,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:23:33,518 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:23:33,519 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855323022] [2019-10-15 03:23:33,520 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:23:33,520 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:23:33,520 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700566125] [2019-10-15 03:23:33,523 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:23:33,523 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:23:33,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:23:33,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:23:33,524 INFO L87 Difference]: Start difference. First operand 106 states and 119 transitions. Second operand 7 states. [2019-10-15 03:23:33,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:23:33,894 INFO L93 Difference]: Finished difference Result 187 states and 214 transitions. [2019-10-15 03:23:33,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 03:23:33,895 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 55 [2019-10-15 03:23:33,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:23:33,898 INFO L225 Difference]: With dead ends: 187 [2019-10-15 03:23:33,898 INFO L226 Difference]: Without dead ends: 106 [2019-10-15 03:23:33,899 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 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 03:23:33,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2019-10-15 03:23:33,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2019-10-15 03:23:33,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-10-15 03:23:33,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 118 transitions. [2019-10-15 03:23:33,928 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 118 transitions. Word has length 55 [2019-10-15 03:23:33,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:23:33,933 INFO L462 AbstractCegarLoop]: Abstraction has 106 states and 118 transitions. [2019-10-15 03:23:33,933 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:23:33,933 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 118 transitions. [2019-10-15 03:23:33,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-10-15 03:23:33,942 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:23:33,942 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] [2019-10-15 03:23:33,942 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:23:33,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:23:33,943 INFO L82 PathProgramCache]: Analyzing trace with hash -472915247, now seen corresponding path program 1 times [2019-10-15 03:23:33,946 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:23:33,947 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253149002] [2019-10-15 03:23:33,947 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:33,947 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:33,947 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:23:34,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:23:34,140 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:23:34,140 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253149002] [2019-10-15 03:23:34,141 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:23:34,141 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 03:23:34,141 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758193507] [2019-10-15 03:23:34,142 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 03:23:34,142 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:23:34,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 03:23:34,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 03:23:34,143 INFO L87 Difference]: Start difference. First operand 106 states and 118 transitions. Second operand 5 states. [2019-10-15 03:23:34,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:23:34,693 INFO L93 Difference]: Finished difference Result 275 states and 323 transitions. [2019-10-15 03:23:34,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 03:23:34,695 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 68 [2019-10-15 03:23:34,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:23:34,700 INFO L225 Difference]: With dead ends: 275 [2019-10-15 03:23:34,702 INFO L226 Difference]: Without dead ends: 194 [2019-10-15 03:23:34,704 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-15 03:23:34,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2019-10-15 03:23:34,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 179. [2019-10-15 03:23:34,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2019-10-15 03:23:34,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 199 transitions. [2019-10-15 03:23:34,750 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 199 transitions. Word has length 68 [2019-10-15 03:23:34,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:23:34,750 INFO L462 AbstractCegarLoop]: Abstraction has 179 states and 199 transitions. [2019-10-15 03:23:34,750 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 03:23:34,750 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 199 transitions. [2019-10-15 03:23:34,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-10-15 03:23:34,754 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:23:34,755 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] [2019-10-15 03:23:34,755 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:23:34,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:23:34,755 INFO L82 PathProgramCache]: Analyzing trace with hash -1083393428, now seen corresponding path program 1 times [2019-10-15 03:23:34,756 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:23:34,756 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071905754] [2019-10-15 03:23:34,756 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:34,757 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:34,757 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:23:34,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:23:35,033 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:23:35,034 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071905754] [2019-10-15 03:23:35,034 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:23:35,034 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-15 03:23:35,034 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345156510] [2019-10-15 03:23:35,035 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-15 03:23:35,035 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:23:35,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-15 03:23:35,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2019-10-15 03:23:35,036 INFO L87 Difference]: Start difference. First operand 179 states and 199 transitions. Second operand 12 states. [2019-10-15 03:23:36,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:23:36,110 INFO L93 Difference]: Finished difference Result 475 states and 543 transitions. [2019-10-15 03:23:36,111 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-15 03:23:36,111 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 77 [2019-10-15 03:23:36,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:23:36,117 INFO L225 Difference]: With dead ends: 475 [2019-10-15 03:23:36,117 INFO L226 Difference]: Without dead ends: 321 [2019-10-15 03:23:36,119 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2019-10-15 03:23:36,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2019-10-15 03:23:36,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 309. [2019-10-15 03:23:36,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2019-10-15 03:23:36,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 352 transitions. [2019-10-15 03:23:36,170 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 352 transitions. Word has length 77 [2019-10-15 03:23:36,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:23:36,172 INFO L462 AbstractCegarLoop]: Abstraction has 309 states and 352 transitions. [2019-10-15 03:23:36,172 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-15 03:23:36,172 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 352 transitions. [2019-10-15 03:23:36,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-10-15 03:23:36,174 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:23:36,174 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] [2019-10-15 03:23:36,174 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:23:36,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:23:36,175 INFO L82 PathProgramCache]: Analyzing trace with hash 1154175996, now seen corresponding path program 1 times [2019-10-15 03:23:36,175 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:23:36,175 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700317471] [2019-10-15 03:23:36,175 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:36,176 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:36,176 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:23:36,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:23:36,266 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-15 03:23:36,266 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700317471] [2019-10-15 03:23:36,267 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:23:36,267 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:23:36,267 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294981470] [2019-10-15 03:23:36,268 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:23:36,268 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:23:36,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:23:36,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:23:36,269 INFO L87 Difference]: Start difference. First operand 309 states and 352 transitions. Second operand 7 states. [2019-10-15 03:23:36,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:23:36,854 INFO L93 Difference]: Finished difference Result 617 states and 725 transitions. [2019-10-15 03:23:36,855 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 03:23:36,856 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 77 [2019-10-15 03:23:36,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:23:36,859 INFO L225 Difference]: With dead ends: 617 [2019-10-15 03:23:36,859 INFO L226 Difference]: Without dead ends: 333 [2019-10-15 03:23:36,861 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-15 03:23:36,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2019-10-15 03:23:36,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 306. [2019-10-15 03:23:36,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2019-10-15 03:23:36,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 343 transitions. [2019-10-15 03:23:36,895 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 343 transitions. Word has length 77 [2019-10-15 03:23:36,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:23:36,895 INFO L462 AbstractCegarLoop]: Abstraction has 306 states and 343 transitions. [2019-10-15 03:23:36,895 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:23:36,896 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 343 transitions. [2019-10-15 03:23:36,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-10-15 03:23:36,898 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:23:36,898 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] [2019-10-15 03:23:36,898 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:23:36,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:23:36,899 INFO L82 PathProgramCache]: Analyzing trace with hash 949759218, now seen corresponding path program 1 times [2019-10-15 03:23:36,899 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:23:36,900 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299650199] [2019-10-15 03:23:36,900 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:36,900 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:36,900 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:23:36,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:23:37,137 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:23:37,137 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299650199] [2019-10-15 03:23:37,137 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:23:37,138 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-15 03:23:37,138 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613225421] [2019-10-15 03:23:37,138 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 03:23:37,139 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:23:37,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 03:23:37,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-15 03:23:37,140 INFO L87 Difference]: Start difference. First operand 306 states and 343 transitions. Second operand 9 states. [2019-10-15 03:23:38,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:23:38,042 INFO L93 Difference]: Finished difference Result 931 states and 1073 transitions. [2019-10-15 03:23:38,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-15 03:23:38,042 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 80 [2019-10-15 03:23:38,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:23:38,048 INFO L225 Difference]: With dead ends: 931 [2019-10-15 03:23:38,049 INFO L226 Difference]: Without dead ends: 707 [2019-10-15 03:23:38,051 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2019-10-15 03:23:38,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2019-10-15 03:23:38,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 610. [2019-10-15 03:23:38,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 610 states. [2019-10-15 03:23:38,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 691 transitions. [2019-10-15 03:23:38,126 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 691 transitions. Word has length 80 [2019-10-15 03:23:38,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:23:38,127 INFO L462 AbstractCegarLoop]: Abstraction has 610 states and 691 transitions. [2019-10-15 03:23:38,127 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 03:23:38,127 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 691 transitions. [2019-10-15 03:23:38,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2019-10-15 03:23:38,131 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:23:38,131 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:23:38,132 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:23:38,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:23:38,133 INFO L82 PathProgramCache]: Analyzing trace with hash -991184073, now seen corresponding path program 1 times [2019-10-15 03:23:38,134 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:23:38,134 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264565358] [2019-10-15 03:23:38,134 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:38,135 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:38,135 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:23:38,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:23:38,370 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-15 03:23:38,370 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264565358] [2019-10-15 03:23:38,370 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [86546133] [2019-10-15 03:23:38,371 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 03:23:38,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:23:38,590 INFO L256 TraceCheckSpWp]: Trace formula consists of 885 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 03:23:38,616 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:23:38,813 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 22 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:23:38,813 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:23:39,222 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-15 03:23:39,223 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1493756988] [2019-10-15 03:23:39,271 INFO L162 IcfgInterpreter]: Started Sifa with 99 locations of interest [2019-10-15 03:23:39,271 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:23:39,281 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:23:39,291 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:23:39,292 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 03:23:49,678 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2019-10-15 03:23:51,217 WARN L191 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-15 03:23:51,360 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-15 03:23:51,499 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-15 03:23:51,657 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-15 03:23:51,960 WARN L191 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:52,214 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:52,443 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:52,626 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:52,975 WARN L191 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 546 DAG size of output: 544 [2019-10-15 03:23:53,182 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:53,325 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:53,469 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:53,587 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:53,733 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:53,743 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 187 for LOIs [2019-10-15 03:23:54,043 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 513 [2019-10-15 03:23:54,044 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 546 for LOIs [2019-10-15 03:23:54,160 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:54,311 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:54,445 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:54,558 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:54,665 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:54,811 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:55,013 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:55,119 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:55,256 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:55,521 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 546 [2019-10-15 03:23:55,662 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:55,829 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:55,950 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:56,074 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:56,197 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:56,334 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:56,441 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:56,579 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:56,682 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:56,992 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:57,147 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:57,263 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:57,396 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:57,503 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:57,605 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:57,730 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:57,845 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:57,948 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:58,070 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:58,273 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:58,394 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:58,499 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:58,625 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:58,768 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:58,873 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:58,979 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:59,104 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:59,239 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:59,351 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:59,607 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:59,864 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-15 03:23:59,978 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:00,112 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:00,226 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:00,339 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:00,460 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:00,671 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:00,796 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:00,927 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:01,065 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:01,182 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:01,390 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:01,515 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:01,630 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:01,761 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:01,883 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 569 [2019-10-15 03:24:01,999 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 569 [2019-10-15 03:24:02,172 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 569 [2019-10-15 03:24:02,290 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 571 [2019-10-15 03:24:02,408 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 571 [2019-10-15 03:24:02,541 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 571 [2019-10-15 03:24:02,682 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 571 [2019-10-15 03:24:02,821 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 571 [2019-10-15 03:24:02,950 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 571 [2019-10-15 03:24:03,166 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 573 DAG size of output: 571 [2019-10-15 03:24:03,285 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 571 [2019-10-15 03:24:03,540 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 571 [2019-10-15 03:24:03,787 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 571 [2019-10-15 03:24:03,926 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 571 [2019-10-15 03:24:04,058 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 571 [2019-10-15 03:24:04,285 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-15 03:24:04,400 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:04,530 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:04,783 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-15 03:24:04,901 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:05,032 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:05,150 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:05,278 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:05,402 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:05,542 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:05,660 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:05,789 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:05,920 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:06,040 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:06,188 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:06,303 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:06,434 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:06,568 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:06,787 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 571 DAG size of output: 569 [2019-10-15 03:24:06,906 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 569 [2019-10-15 03:24:07,097 WARN L191 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 569 [2019-10-15 03:24:07,308 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 573 DAG size of output: 571 [2019-10-15 03:24:07,429 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 571 [2019-10-15 03:24:07,575 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 571 [2019-10-15 03:24:07,795 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-15 03:24:07,910 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:08,041 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:08,273 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-15 03:24:08,386 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:08,509 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:08,624 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:08,739 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:08,861 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:09,083 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-15 03:24:09,197 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:09,322 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:09,533 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-15 03:24:09,645 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:09,768 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:10,006 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560