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_product61.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:19:30,646 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:19:30,650 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:19:30,667 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:19:30,667 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:19:30,668 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:19:30,669 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:19:30,671 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:19:30,673 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:19:30,674 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:19:30,678 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:19:30,680 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:19:30,680 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:19:30,683 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:19:30,684 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:19:30,686 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:19:30,688 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:19:30,689 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:19:30,691 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:19:30,693 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:19:30,697 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:19:30,698 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:19:30,700 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:19:30,701 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:19:30,706 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:19:30,707 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:19:30,707 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:19:30,708 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:19:30,708 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:19:30,709 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:19:30,709 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:19:30,710 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:19:30,711 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:19:30,712 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:19:30,712 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:19:30,713 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:19:30,713 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:19:30,714 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:19:30,714 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:19:30,715 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:19:30,715 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:19:30,716 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 23:19:30,739 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:19:30,739 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:19:30,741 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:19:30,741 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:19:30,742 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:19:30,742 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:19:30,742 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:19:30,742 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:19:30,743 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:19:30,743 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:19:30,744 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:19:30,744 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:19:30,744 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:19:30,745 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:19:30,745 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:19:30,745 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:19:30,746 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:19:30,746 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:19:30,746 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:19:30,746 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:19:30,747 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:19:30,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:19:30,747 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:19:30,747 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:19:30,748 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:19:30,748 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:19:30,748 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:19:30,748 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:19:30,748 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 23:19:31,061 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:19:31,075 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:19:31,078 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:19:31,080 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:19:31,080 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:19:31,081 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product61.cil.c [2019-10-13 23:19:31,154 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/936007432/485ca4716d9b48fa9bcb39ec5c016575/FLAGee7db9757 [2019-10-13 23:19:31,662 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:19:31,663 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product61.cil.c [2019-10-13 23:19:31,677 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/936007432/485ca4716d9b48fa9bcb39ec5c016575/FLAGee7db9757 [2019-10-13 23:19:31,983 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/936007432/485ca4716d9b48fa9bcb39ec5c016575 [2019-10-13 23:19:31,993 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:19:31,995 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:19:31,996 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:19:31,996 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:19:31,998 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:19:31,999 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:19:31" (1/1) ... [2019-10-13 23:19:32,002 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40ae5ff6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:32, skipping insertion in model container [2019-10-13 23:19:32,002 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:19:31" (1/1) ... [2019-10-13 23:19:32,010 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:19:32,070 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:19:32,561 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:19:32,575 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:19:32,687 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:19:32,740 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:19:32,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:32 WrapperNode [2019-10-13 23:19:32,742 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:19:32,743 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:19:32,743 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:19:32,743 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:19:32,758 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:32" (1/1) ... [2019-10-13 23:19:32,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:32" (1/1) ... [2019-10-13 23:19:32,792 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:32" (1/1) ... [2019-10-13 23:19:32,793 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:32" (1/1) ... [2019-10-13 23:19:32,838 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:32" (1/1) ... [2019-10-13 23:19:32,847 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:32" (1/1) ... [2019-10-13 23:19:32,852 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:32" (1/1) ... [2019-10-13 23:19:32,860 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:19:32,861 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:19:32,861 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:19:32,861 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:19:32,862 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:32" (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 23:19:32,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:19:32,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:19:32,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:19:32,959 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:19:32,959 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 23:19:32,960 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-13 23:19:32,961 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 23:19:32,961 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-10-13 23:19:32,961 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 23:19:32,961 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 23:19:32,961 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 23:19:32,962 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 23:19:32,962 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 23:19:32,963 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 23:19:32,963 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 23:19:32,963 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 23:19:32,965 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-13 23:19:32,965 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 23:19:32,965 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 23:19:32,966 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 23:19:32,966 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 23:19:32,966 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 23:19:32,966 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 23:19:32,966 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 23:19:32,967 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-13 23:19:32,967 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:19:32,967 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:19:32,967 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:19:32,967 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:19:32,968 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:19:32,968 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:19:32,968 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-13 23:19:32,968 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-13 23:19:32,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-13 23:19:32,969 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:19:32,969 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:19:32,969 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:19:32,969 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:19:32,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:19:32,970 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 23:19:32,970 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 23:19:32,970 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:19:32,970 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 23:19:32,970 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:19:32,971 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:19:32,971 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:19:32,971 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:19:32,973 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 23:19:32,973 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 23:19:32,973 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 23:19:32,973 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 23:19:32,973 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:19:32,973 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 23:19:32,973 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 23:19:32,974 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 23:19:32,974 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 23:19:32,974 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-13 23:19:32,974 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 23:19:32,974 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 23:19:32,975 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 23:19:32,975 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 23:19:32,975 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-13 23:19:32,975 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-13 23:19:32,975 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 23:19:32,976 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-13 23:19:32,976 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 23:19:32,976 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 23:19:32,976 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-13 23:19:32,976 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-10-13 23:19:32,976 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 23:19:32,977 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 23:19:32,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:19:32,977 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 23:19:32,978 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:19:32,978 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:19:32,978 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:19:32,979 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:19:32,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:19:32,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:19:32,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:19:32,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:19:32,980 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:19:32,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:19:32,981 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:19:32,981 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:19:32,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:19:32,981 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:19:32,982 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:19:32,982 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:19:32,982 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:19:32,982 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-13 23:19:32,983 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:19:32,983 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:19:32,983 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:19:32,983 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:19:32,983 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 23:19:32,983 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:19:32,983 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 23:19:32,984 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:19:32,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:19:32,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:19:32,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:19:34,662 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:19:34,662 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 23:19:34,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:19:34 BoogieIcfgContainer [2019-10-13 23:19:34,664 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:19:34,665 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:19:34,666 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:19:34,669 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:19:34,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:19:31" (1/3) ... [2019-10-13 23:19:34,670 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60596908 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:19:34, skipping insertion in model container [2019-10-13 23:19:34,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:32" (2/3) ... [2019-10-13 23:19:34,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60596908 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:19:34, skipping insertion in model container [2019-10-13 23:19:34,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:19:34" (3/3) ... [2019-10-13 23:19:34,673 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product61.cil.c [2019-10-13 23:19:34,683 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:19:34,693 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:19:34,705 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:19:34,744 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:19:34,745 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:19:34,745 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:19:34,745 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:19:34,745 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:19:34,745 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:19:34,745 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:19:34,746 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:19:34,768 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states. [2019-10-13 23:19:34,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-13 23:19:34,777 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:19:34,779 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] [2019-10-13 23:19:34,781 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:19:34,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:19:34,787 INFO L82 PathProgramCache]: Analyzing trace with hash 842087760, now seen corresponding path program 1 times [2019-10-13 23:19:34,797 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:19:34,797 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948169585] [2019-10-13 23:19:34,798 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:34,798 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:34,798 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:19:35,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:19:35,162 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 23:19:35,163 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948169585] [2019-10-13 23:19:35,165 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:19:35,166 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:19:35,166 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57009567] [2019-10-13 23:19:35,172 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:19:35,173 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:19:35,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:19:35,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:19:35,185 INFO L87 Difference]: Start difference. First operand 170 states. Second operand 2 states. [2019-10-13 23:19:35,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:19:35,271 INFO L93 Difference]: Finished difference Result 270 states and 327 transitions. [2019-10-13 23:19:35,271 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:19:35,276 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2019-10-13 23:19:35,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:19:35,298 INFO L225 Difference]: With dead ends: 270 [2019-10-13 23:19:35,299 INFO L226 Difference]: Without dead ends: 137 [2019-10-13 23:19:35,308 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 23:19:35,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2019-10-13 23:19:35,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2019-10-13 23:19:35,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2019-10-13 23:19:35,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 159 transitions. [2019-10-13 23:19:35,411 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 159 transitions. Word has length 52 [2019-10-13 23:19:35,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:19:35,411 INFO L462 AbstractCegarLoop]: Abstraction has 137 states and 159 transitions. [2019-10-13 23:19:35,412 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:19:35,412 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 159 transitions. [2019-10-13 23:19:35,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-10-13 23:19:35,422 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:19:35,422 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] [2019-10-13 23:19:35,422 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:19:35,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:19:35,423 INFO L82 PathProgramCache]: Analyzing trace with hash -1643394089, now seen corresponding path program 1 times [2019-10-13 23:19:35,423 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:19:35,423 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597816399] [2019-10-13 23:19:35,424 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:35,424 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:35,424 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:19:35,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:19:35,619 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 23:19:35,619 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597816399] [2019-10-13 23:19:35,620 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:19:35,620 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:19:35,620 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950433095] [2019-10-13 23:19:35,622 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:19:35,622 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:19:35,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:19:35,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:19:35,623 INFO L87 Difference]: Start difference. First operand 137 states and 159 transitions. Second operand 3 states. [2019-10-13 23:19:35,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:19:35,646 INFO L93 Difference]: Finished difference Result 228 states and 266 transitions. [2019-10-13 23:19:35,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:19:35,647 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2019-10-13 23:19:35,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:19:35,649 INFO L225 Difference]: With dead ends: 228 [2019-10-13 23:19:35,650 INFO L226 Difference]: Without dead ends: 129 [2019-10-13 23:19:35,652 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 23:19:35,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2019-10-13 23:19:35,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2019-10-13 23:19:35,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2019-10-13 23:19:35,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 148 transitions. [2019-10-13 23:19:35,667 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 148 transitions. Word has length 53 [2019-10-13 23:19:35,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:19:35,668 INFO L462 AbstractCegarLoop]: Abstraction has 129 states and 148 transitions. [2019-10-13 23:19:35,668 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:19:35,668 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 148 transitions. [2019-10-13 23:19:35,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-10-13 23:19:35,670 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:19:35,670 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] [2019-10-13 23:19:35,671 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:19:35,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:19:35,671 INFO L82 PathProgramCache]: Analyzing trace with hash 1118537415, now seen corresponding path program 1 times [2019-10-13 23:19:35,673 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:19:35,673 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484301721] [2019-10-13 23:19:35,674 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:35,674 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:35,674 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:19:35,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:19:35,859 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 23:19:35,860 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484301721] [2019-10-13 23:19:35,860 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:19:35,860 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:19:35,860 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957704020] [2019-10-13 23:19:35,861 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:19:35,861 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:19:35,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:19:35,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:19:35,862 INFO L87 Difference]: Start difference. First operand 129 states and 148 transitions. Second operand 7 states. [2019-10-13 23:19:36,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:19:36,235 INFO L93 Difference]: Finished difference Result 233 states and 272 transitions. [2019-10-13 23:19:36,235 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 23:19:36,236 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 55 [2019-10-13 23:19:36,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:19:36,238 INFO L225 Difference]: With dead ends: 233 [2019-10-13 23:19:36,238 INFO L226 Difference]: Without dead ends: 129 [2019-10-13 23:19:36,239 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 [2019-10-13 23:19:36,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2019-10-13 23:19:36,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2019-10-13 23:19:36,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2019-10-13 23:19:36,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 147 transitions. [2019-10-13 23:19:36,254 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 147 transitions. Word has length 55 [2019-10-13 23:19:36,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:19:36,256 INFO L462 AbstractCegarLoop]: Abstraction has 129 states and 147 transitions. [2019-10-13 23:19:36,256 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:19:36,256 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 147 transitions. [2019-10-13 23:19:36,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-10-13 23:19:36,258 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:19:36,258 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] [2019-10-13 23:19:36,259 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:19:36,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:19:36,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1054835444, now seen corresponding path program 1 times [2019-10-13 23:19:36,259 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:19:36,259 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101015389] [2019-10-13 23:19:36,260 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:36,260 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:36,260 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:19:36,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:19:36,360 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 23:19:36,361 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101015389] [2019-10-13 23:19:36,361 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:19:36,361 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 23:19:36,362 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047746751] [2019-10-13 23:19:36,362 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 23:19:36,365 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:19:36,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 23:19:36,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 23:19:36,366 INFO L87 Difference]: Start difference. First operand 129 states and 147 transitions. Second operand 5 states. [2019-10-13 23:19:36,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:19:36,946 INFO L93 Difference]: Finished difference Result 337 states and 398 transitions. [2019-10-13 23:19:36,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 23:19:36,947 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 72 [2019-10-13 23:19:36,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:19:36,952 INFO L225 Difference]: With dead ends: 337 [2019-10-13 23:19:36,953 INFO L226 Difference]: Without dead ends: 233 [2019-10-13 23:19:36,954 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-13 23:19:36,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2019-10-13 23:19:36,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 218. [2019-10-13 23:19:36,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2019-10-13 23:19:36,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 241 transitions. [2019-10-13 23:19:36,995 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 241 transitions. Word has length 72 [2019-10-13 23:19:36,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:19:36,996 INFO L462 AbstractCegarLoop]: Abstraction has 218 states and 241 transitions. [2019-10-13 23:19:36,996 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 23:19:36,996 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 241 transitions. [2019-10-13 23:19:36,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-10-13 23:19:36,999 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:19:36,999 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] [2019-10-13 23:19:36,999 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:19:36,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:19:37,000 INFO L82 PathProgramCache]: Analyzing trace with hash 1642495861, now seen corresponding path program 1 times [2019-10-13 23:19:37,000 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:19:37,001 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256825918] [2019-10-13 23:19:37,001 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:37,001 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:37,001 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:19:37,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:19:37,162 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 23:19:37,162 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256825918] [2019-10-13 23:19:37,163 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:19:37,163 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:19:37,163 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894587285] [2019-10-13 23:19:37,165 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:19:37,165 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:19:37,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:19:37,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:19:37,167 INFO L87 Difference]: Start difference. First operand 218 states and 241 transitions. Second operand 7 states. [2019-10-13 23:19:37,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:19:37,826 INFO L93 Difference]: Finished difference Result 425 states and 483 transitions. [2019-10-13 23:19:37,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 23:19:37,827 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 82 [2019-10-13 23:19:37,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:19:37,830 INFO L225 Difference]: With dead ends: 425 [2019-10-13 23:19:37,830 INFO L226 Difference]: Without dead ends: 232 [2019-10-13 23:19:37,831 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-13 23:19:37,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2019-10-13 23:19:37,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 217. [2019-10-13 23:19:37,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2019-10-13 23:19:37,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 238 transitions. [2019-10-13 23:19:37,853 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 238 transitions. Word has length 82 [2019-10-13 23:19:37,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:19:37,854 INFO L462 AbstractCegarLoop]: Abstraction has 217 states and 238 transitions. [2019-10-13 23:19:37,854 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:19:37,854 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 238 transitions. [2019-10-13 23:19:37,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2019-10-13 23:19:37,855 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:19:37,855 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, 1, 1, 1, 1, 1, 1] [2019-10-13 23:19:37,856 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:19:37,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:19:37,856 INFO L82 PathProgramCache]: Analyzing trace with hash 960203345, now seen corresponding path program 1 times [2019-10-13 23:19:37,856 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:19:37,857 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975248289] [2019-10-13 23:19:37,857 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:37,857 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:37,857 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:19:37,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:19:38,112 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 23:19:38,113 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975248289] [2019-10-13 23:19:38,113 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:19:38,113 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 23:19:38,113 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968904262] [2019-10-13 23:19:38,114 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 23:19:38,114 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:19:38,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 23:19:38,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2019-10-13 23:19:38,115 INFO L87 Difference]: Start difference. First operand 217 states and 238 transitions. Second operand 12 states. [2019-10-13 23:19:39,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:19:39,006 INFO L93 Difference]: Finished difference Result 556 states and 634 transitions. [2019-10-13 23:19:39,007 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-13 23:19:39,007 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 95 [2019-10-13 23:19:39,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:19:39,011 INFO L225 Difference]: With dead ends: 556 [2019-10-13 23:19:39,011 INFO L226 Difference]: Without dead ends: 364 [2019-10-13 23:19:39,012 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2019-10-13 23:19:39,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2019-10-13 23:19:39,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 355. [2019-10-13 23:19:39,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355 states. [2019-10-13 23:19:39,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 401 transitions. [2019-10-13 23:19:39,045 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 401 transitions. Word has length 95 [2019-10-13 23:19:39,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:19:39,045 INFO L462 AbstractCegarLoop]: Abstraction has 355 states and 401 transitions. [2019-10-13 23:19:39,045 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 23:19:39,046 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 401 transitions. [2019-10-13 23:19:39,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-10-13 23:19:39,047 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:19:39,048 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:19:39,048 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:19:39,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:19:39,048 INFO L82 PathProgramCache]: Analyzing trace with hash -696143968, now seen corresponding path program 1 times [2019-10-13 23:19:39,049 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:19:39,049 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14637507] [2019-10-13 23:19:39,049 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:39,049 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:39,049 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:19:39,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:19:39,202 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 23:19:39,203 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14637507] [2019-10-13 23:19:39,203 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:19:39,204 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 23:19:39,204 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178743032] [2019-10-13 23:19:39,204 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 23:19:39,205 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:19:39,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 23:19:39,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-13 23:19:39,205 INFO L87 Difference]: Start difference. First operand 355 states and 401 transitions. Second operand 9 states. [2019-10-13 23:19:40,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:19:40,240 INFO L93 Difference]: Finished difference Result 1095 states and 1273 transitions. [2019-10-13 23:19:40,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-13 23:19:40,241 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 98 [2019-10-13 23:19:40,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:19:40,249 INFO L225 Difference]: With dead ends: 1095 [2019-10-13 23:19:40,253 INFO L226 Difference]: Without dead ends: 827 [2019-10-13 23:19:40,256 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 [2019-10-13 23:19:40,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 827 states. [2019-10-13 23:19:40,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 827 to 725. [2019-10-13 23:19:40,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 725 states. [2019-10-13 23:19:40,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 825 transitions. [2019-10-13 23:19:40,336 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 825 transitions. Word has length 98 [2019-10-13 23:19:40,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:19:40,341 INFO L462 AbstractCegarLoop]: Abstraction has 725 states and 825 transitions. [2019-10-13 23:19:40,341 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 23:19:40,341 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 825 transitions. [2019-10-13 23:19:40,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2019-10-13 23:19:40,351 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:19:40,352 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:19:40,353 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:19:40,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:19:40,353 INFO L82 PathProgramCache]: Analyzing trace with hash 1941303312, now seen corresponding path program 1 times [2019-10-13 23:19:40,354 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:19:40,354 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344427496] [2019-10-13 23:19:40,354 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:40,355 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:40,355 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:19:40,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:19:40,545 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-13 23:19:40,546 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344427496] [2019-10-13 23:19:40,546 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729541262] [2019-10-13 23:19:40,546 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 23:19:40,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:19:40,842 INFO L256 TraceCheckSpWp]: Trace formula consists of 966 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-13 23:19:40,864 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:19:41,071 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 30 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:19:41,071 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:19:41,598 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-13 23:19:41,599 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1548038223] [2019-10-13 23:19:41,630 INFO L162 IcfgInterpreter]: Started Sifa with 121 locations of interest [2019-10-13 23:19:41,630 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:19:41,637 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:19:41,646 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:19:41,646 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 23:19:49,370 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2019-10-13 23:19:51,145 WARN L191 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-13 23:19:51,290 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-13 23:19:51,501 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-13 23:19:51,624 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-13 23:19:51,859 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:19:52,043 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:19:52,284 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:19:52,485 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:19:52,831 WARN L191 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 546 DAG size of output: 544 [2019-10-13 23:19:52,946 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:19:53,080 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:19:53,223 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:19:53,374 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:19:53,489 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:19:53,498 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 187 for LOIs [2019-10-13 23:19:53,740 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 546 for LOIs [2019-10-13 23:19:53,877 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:19:53,992 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:19:54,131 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:54,340 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:19:54,494 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:54,610 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:19:54,843 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:55,203 WARN L191 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 546 [2019-10-13 23:19:55,324 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:19:55,461 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:55,582 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:19:55,841 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:55,946 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:19:56,052 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:19:56,189 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:56,291 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:19:56,412 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:19:56,531 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:56,842 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:57,057 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:19:57,199 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:57,409 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:19:57,528 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:57,855 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:58,166 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:58,476 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:58,652 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:58,777 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:58,922 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:59,134 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-13 23:19:59,247 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:59,383 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:59,491 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:59,612 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:59,732 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:59,871 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-13 23:19:59,983 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-13 23:20:00,111 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:00,236 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:00,350 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:00,493 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:00,787 WARN L191 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-13 23:20:00,904 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-13 23:20:01,024 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:01,145 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-13 23:20:01,258 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-13 23:20:01,466 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:01,581 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:01,691 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:01,814 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:20:01,940 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:02,052 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:02,175 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:20:02,395 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 568 DAG size of output: 564 [2019-10-13 23:20:02,517 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:02,651 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:20:02,761 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:02,874 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:02,996 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:20:03,214 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-13 23:20:03,323 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:20:03,458 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:20:03,663 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-13 23:20:03,771 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:20:03,897 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:20:04,010 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:20:04,120 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:20:04,238 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:20:04,375 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:04,486 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:04,621 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:04,855 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-13 23:20:04,969 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-13 23:20:05,108 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:05,307 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-13 23:20:05,418 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-13 23:20:05,539 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:05,743 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 571 DAG size of output: 564 [2019-10-13 23:20:05,853 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:05,980 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:06,169 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 573 DAG size of output: 566 [2019-10-13 23:20:06,285 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:20:06,429 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:20:06,651 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-13 23:20:06,760 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:20:06,879 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:20:07,082 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-13 23:20:07,190 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:20:07,311 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:20:07,423 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:20:07,535 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:20:07,651 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:20:07,865 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-13 23:20:07,974 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:20:08,097 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:20:08,294 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-13 23:20:08,410 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:20:08,532 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:20:08,640 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:20:08,748 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:20:08,867 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:20:09,080 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-13 23:20:09,188 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-13 23:20:09,318 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:09,435 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:09,546 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:09,671 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:09,863 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-13 23:20:09,972 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-13 23:20:10,102 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:10,369 WARN L191 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-13 23:20:10,478 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-13 23:20:10,610 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:10,818 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 568 DAG size of output: 564 [2019-10-13 23:20:10,931 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:11,054 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:20:11,259 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 568 DAG size of output: 564 [2019-10-13 23:20:11,367 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:11,489 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:20:11,691 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 568 DAG size of output: 564 [2019-10-13 23:20:11,800 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:11,927 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:20:12,132 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-13 23:20:12,239 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:20:12,358 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560