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_spec1_product57.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:19:15,717 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:19:15,719 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:19:15,734 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:19:15,735 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:19:15,737 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:19:15,739 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:19:15,749 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:19:15,754 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:19:15,757 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:19:15,758 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:19:15,759 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:19:15,760 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:19:15,761 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:19:15,764 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:19:15,766 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:19:15,767 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:19:15,770 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:19:15,771 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:19:15,777 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:19:15,782 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:19:15,785 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:19:15,788 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:19:15,789 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:19:15,791 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:19:15,791 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:19:15,791 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:19:15,793 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:19:15,795 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:19:15,796 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:19:15,796 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:19:15,798 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:19:15,799 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:19:15,799 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:19:15,801 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:19:15,801 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:19:15,802 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:19:15,802 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:19:15,802 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:19:15,803 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:19:15,805 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:19:15,805 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 03:19:15,833 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:19:15,833 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:19:15,835 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:19:15,835 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:19:15,835 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:19:15,835 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:19:15,835 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:19:15,836 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:19:15,836 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:19:15,836 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:19:15,836 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:19:15,836 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:19:15,837 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:19:15,837 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:19:15,837 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:19:15,837 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:19:15,837 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:19:15,838 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:19:15,838 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:19:15,838 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:19:15,838 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:19:15,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:19:15,839 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:19:15,839 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:19:15,839 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:19:15,839 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:19:15,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:19:15,839 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:19:15,840 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 03:19:16,123 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:19:16,144 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:19:16,147 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:19:16,149 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:19:16,149 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:19:16,150 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product57.cil.c [2019-10-15 03:19:16,225 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/224dc648a/ab8a1c36ca0b492a997e85a6e7d5b7a3/FLAGf91d2beb6 [2019-10-15 03:19:16,792 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:19:16,799 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product57.cil.c [2019-10-15 03:19:16,814 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/224dc648a/ab8a1c36ca0b492a997e85a6e7d5b7a3/FLAGf91d2beb6 [2019-10-15 03:19:17,092 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/224dc648a/ab8a1c36ca0b492a997e85a6e7d5b7a3 [2019-10-15 03:19:17,102 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:19:17,104 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:19:17,105 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:19:17,105 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:19:17,108 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:19:17,110 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:19:17" (1/1) ... [2019-10-15 03:19:17,112 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e20f8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:19:17, skipping insertion in model container [2019-10-15 03:19:17,112 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:19:17" (1/1) ... [2019-10-15 03:19:17,118 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:19:17,174 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:19:17,599 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:19:17,614 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:19:17,733 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:19:17,791 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:19:17,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:19:17 WrapperNode [2019-10-15 03:19:17,791 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:19:17,792 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:19:17,792 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:19:17,792 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:19:17,803 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:19:17" (1/1) ... [2019-10-15 03:19:17,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:19:17" (1/1) ... [2019-10-15 03:19:17,820 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:19:17" (1/1) ... [2019-10-15 03:19:17,821 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:19:17" (1/1) ... [2019-10-15 03:19:17,849 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:19:17" (1/1) ... [2019-10-15 03:19:17,861 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:19:17" (1/1) ... [2019-10-15 03:19:17,866 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:19:17" (1/1) ... [2019-10-15 03:19:17,874 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:19:17,876 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:19:17,876 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:19:17,876 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:19:17,880 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:19:17" (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 03:19:17,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:19:17,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:19:17,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:19:17,960 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-10-15 03:19:17,961 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:19:17,961 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:19:17,961 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:19:17,961 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:19:17,961 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:19:17,962 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:19:17,962 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:19:17,962 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:19:17,962 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:19:17,962 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:19:17,962 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:19:17,963 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-15 03:19:17,963 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-15 03:19:17,963 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-15 03:19:17,963 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-15 03:19:17,963 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-15 03:19:17,964 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-15 03:19:17,964 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-15 03:19:17,964 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-15 03:19:17,964 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-15 03:19:17,964 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-15 03:19:17,964 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-15 03:19:17,965 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-15 03:19:17,965 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-15 03:19:17,965 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-15 03:19:17,965 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:19:17,965 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-15 03:19:17,965 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:19:17,966 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-15 03:19:17,966 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-15 03:19:17,966 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-15 03:19:17,966 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-15 03:19:17,966 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-15 03:19:17,966 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-15 03:19:17,966 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-15 03:19:17,967 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-15 03:19:17,967 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:19:17,967 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:19:17,967 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:19:17,967 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:19:17,967 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:19:17,968 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-15 03:19:17,968 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-15 03:19:17,968 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-10-15 03:19:17,968 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:19:17,968 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:19:17,968 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:19:17,968 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:19:17,969 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:19:17,969 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:19:17,969 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:19:17,969 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:19:17,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:19:17,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:19:17,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:19:17,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:19:17,970 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:19:17,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:19:17,970 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:19:17,970 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:19:17,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:19:17,971 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:19:17,971 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:19:17,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:19:17,971 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:19:17,971 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-15 03:19:17,971 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-15 03:19:17,972 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-15 03:19:17,972 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-15 03:19:17,972 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:19:17,972 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-15 03:19:17,972 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-15 03:19:17,972 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-15 03:19:17,973 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-15 03:19:17,973 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-15 03:19:17,973 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-15 03:19:17,973 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-15 03:19:17,973 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-15 03:19:17,973 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-15 03:19:17,974 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-15 03:19:17,974 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-15 03:19:17,974 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-15 03:19:17,974 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-15 03:19:17,974 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-15 03:19:17,974 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-15 03:19:17,974 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:19:17,975 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-15 03:19:17,975 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:19:17,975 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-15 03:19:17,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:19:17,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:19:17,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:19:19,789 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:19:19,789 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-15 03:19:19,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:19:19 BoogieIcfgContainer [2019-10-15 03:19:19,791 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:19:19,792 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:19:19,793 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:19:19,796 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:19:19,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:19:17" (1/3) ... [2019-10-15 03:19:19,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fc2e12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:19:19, skipping insertion in model container [2019-10-15 03:19:19,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:19:17" (2/3) ... [2019-10-15 03:19:19,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fc2e12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:19:19, skipping insertion in model container [2019-10-15 03:19:19,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:19:19" (3/3) ... [2019-10-15 03:19:19,800 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product57.cil.c [2019-10-15 03:19:19,813 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:19:19,822 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:19:19,837 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:19:19,865 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:19:19,865 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:19:19,865 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:19:19,865 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:19:19,866 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:19:19,866 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:19:19,866 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:19:19,866 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:19:19,892 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states. [2019-10-15 03:19:19,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-10-15 03:19:19,906 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:19:19,907 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:19:19,912 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:19:19,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:19:19,919 INFO L82 PathProgramCache]: Analyzing trace with hash 499766542, now seen corresponding path program 1 times [2019-10-15 03:19:19,930 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:19:19,931 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939539911] [2019-10-15 03:19:19,931 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:19:19,931 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:19:19,931 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:19:20,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:19:20,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:19:20,303 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939539911] [2019-10-15 03:19:20,304 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:19:20,305 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:19:20,306 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962190366] [2019-10-15 03:19:20,313 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:19:20,314 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:19:20,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:19:20,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:19:20,335 INFO L87 Difference]: Start difference. First operand 150 states. Second operand 2 states. [2019-10-15 03:19:20,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:19:20,413 INFO L93 Difference]: Finished difference Result 233 states and 278 transitions. [2019-10-15 03:19:20,414 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:19:20,415 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 42 [2019-10-15 03:19:20,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:19:20,433 INFO L225 Difference]: With dead ends: 233 [2019-10-15 03:19:20,434 INFO L226 Difference]: Without dead ends: 117 [2019-10-15 03:19:20,440 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 03:19:20,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2019-10-15 03:19:20,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2019-10-15 03:19:20,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2019-10-15 03:19:20,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 133 transitions. [2019-10-15 03:19:20,494 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 133 transitions. Word has length 42 [2019-10-15 03:19:20,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:19:20,494 INFO L462 AbstractCegarLoop]: Abstraction has 117 states and 133 transitions. [2019-10-15 03:19:20,495 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:19:20,495 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 133 transitions. [2019-10-15 03:19:20,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-10-15 03:19:20,498 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:19:20,499 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:19:20,499 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:19:20,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:19:20,500 INFO L82 PathProgramCache]: Analyzing trace with hash -2009821160, now seen corresponding path program 1 times [2019-10-15 03:19:20,500 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:19:20,500 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517614663] [2019-10-15 03:19:20,500 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:19:20,501 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:19:20,501 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:19:20,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:19:20,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:19:20,633 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517614663] [2019-10-15 03:19:20,633 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:19:20,633 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:19:20,634 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683035838] [2019-10-15 03:19:20,635 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:19:20,636 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:19:20,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:19:20,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:19:20,637 INFO L87 Difference]: Start difference. First operand 117 states and 133 transitions. Second operand 3 states. [2019-10-15 03:19:20,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:19:20,679 INFO L93 Difference]: Finished difference Result 191 states and 217 transitions. [2019-10-15 03:19:20,679 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:19:20,679 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2019-10-15 03:19:20,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:19:20,682 INFO L225 Difference]: With dead ends: 191 [2019-10-15 03:19:20,683 INFO L226 Difference]: Without dead ends: 109 [2019-10-15 03:19:20,684 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 03:19:20,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2019-10-15 03:19:20,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2019-10-15 03:19:20,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-10-15 03:19:20,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 122 transitions. [2019-10-15 03:19:20,699 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 122 transitions. Word has length 43 [2019-10-15 03:19:20,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:19:20,699 INFO L462 AbstractCegarLoop]: Abstraction has 109 states and 122 transitions. [2019-10-15 03:19:20,699 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:19:20,700 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 122 transitions. [2019-10-15 03:19:20,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-10-15 03:19:20,724 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:19:20,724 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:19:20,725 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:19:20,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:19:20,725 INFO L82 PathProgramCache]: Analyzing trace with hash 1905984228, now seen corresponding path program 1 times [2019-10-15 03:19:20,725 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:19:20,726 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497028650] [2019-10-15 03:19:20,726 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:19:20,726 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:19:20,726 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:19:20,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:19:20,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:19:20,865 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497028650] [2019-10-15 03:19:20,865 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:19:20,865 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:19:20,866 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443718313] [2019-10-15 03:19:20,867 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:19:20,868 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:19:20,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:19:20,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:19:20,869 INFO L87 Difference]: Start difference. First operand 109 states and 122 transitions. Second operand 7 states. [2019-10-15 03:19:21,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:19:21,193 INFO L93 Difference]: Finished difference Result 196 states and 223 transitions. [2019-10-15 03:19:21,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 03:19:21,195 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2019-10-15 03:19:21,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:19:21,197 INFO L225 Difference]: With dead ends: 196 [2019-10-15 03:19:21,197 INFO L226 Difference]: Without dead ends: 109 [2019-10-15 03:19:21,198 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 03:19:21,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2019-10-15 03:19:21,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2019-10-15 03:19:21,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-10-15 03:19:21,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 121 transitions. [2019-10-15 03:19:21,224 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 121 transitions. Word has length 45 [2019-10-15 03:19:21,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:19:21,225 INFO L462 AbstractCegarLoop]: Abstraction has 109 states and 121 transitions. [2019-10-15 03:19:21,225 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:19:21,225 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 121 transitions. [2019-10-15 03:19:21,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-10-15 03:19:21,228 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:19:21,228 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:19:21,228 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:19:21,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:19:21,229 INFO L82 PathProgramCache]: Analyzing trace with hash -1680231948, now seen corresponding path program 1 times [2019-10-15 03:19:21,229 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:19:21,229 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921546921] [2019-10-15 03:19:21,229 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:19:21,229 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:19:21,230 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:19:21,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:19:21,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:19:21,319 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921546921] [2019-10-15 03:19:21,319 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:19:21,319 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 03:19:21,319 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817560322] [2019-10-15 03:19:21,320 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 03:19:21,320 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:19:21,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 03:19:21,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 03:19:21,321 INFO L87 Difference]: Start difference. First operand 109 states and 121 transitions. Second operand 5 states. [2019-10-15 03:19:21,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:19:21,799 INFO L93 Difference]: Finished difference Result 280 states and 325 transitions. [2019-10-15 03:19:21,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 03:19:21,803 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2019-10-15 03:19:21,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:19:21,805 INFO L225 Difference]: With dead ends: 280 [2019-10-15 03:19:21,806 INFO L226 Difference]: Without dead ends: 193 [2019-10-15 03:19:21,807 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 03:19:21,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2019-10-15 03:19:21,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 178. [2019-10-15 03:19:21,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2019-10-15 03:19:21,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 195 transitions. [2019-10-15 03:19:21,849 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 195 transitions. Word has length 58 [2019-10-15 03:19:21,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:19:21,849 INFO L462 AbstractCegarLoop]: Abstraction has 178 states and 195 transitions. [2019-10-15 03:19:21,849 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 03:19:21,850 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 195 transitions. [2019-10-15 03:19:21,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-10-15 03:19:21,856 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:19:21,856 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:19:21,857 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:19:21,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:19:21,860 INFO L82 PathProgramCache]: Analyzing trace with hash -1031765746, now seen corresponding path program 1 times [2019-10-15 03:19:21,860 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:19:21,860 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558549770] [2019-10-15 03:19:21,860 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:19:21,861 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:19:21,861 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:19:21,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:19:21,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:19:21,977 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558549770] [2019-10-15 03:19:21,978 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:19:21,978 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 03:19:21,978 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446109685] [2019-10-15 03:19:21,979 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 03:19:21,979 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:19:21,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 03:19:21,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 03:19:21,980 INFO L87 Difference]: Start difference. First operand 178 states and 195 transitions. Second operand 6 states. [2019-10-15 03:19:22,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:19:22,188 INFO L93 Difference]: Finished difference Result 476 states and 538 transitions. [2019-10-15 03:19:22,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 03:19:22,189 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 67 [2019-10-15 03:19:22,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:19:22,194 INFO L225 Difference]: With dead ends: 476 [2019-10-15 03:19:22,194 INFO L226 Difference]: Without dead ends: 320 [2019-10-15 03:19:22,195 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-15 03:19:22,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2019-10-15 03:19:22,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 310. [2019-10-15 03:19:22,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 310 states. [2019-10-15 03:19:22,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 339 transitions. [2019-10-15 03:19:22,229 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 339 transitions. Word has length 67 [2019-10-15 03:19:22,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:19:22,229 INFO L462 AbstractCegarLoop]: Abstraction has 310 states and 339 transitions. [2019-10-15 03:19:22,230 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 03:19:22,230 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 339 transitions. [2019-10-15 03:19:22,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-10-15 03:19:22,232 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:19:22,232 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:19:22,232 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:19:22,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:19:22,233 INFO L82 PathProgramCache]: Analyzing trace with hash 1152524610, now seen corresponding path program 1 times [2019-10-15 03:19:22,233 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:19:22,233 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690519737] [2019-10-15 03:19:22,233 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:19:22,233 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:19:22,234 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:19:22,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:19:22,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:19:22,389 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690519737] [2019-10-15 03:19:22,389 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:19:22,389 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:19:22,389 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296270607] [2019-10-15 03:19:22,390 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:19:22,390 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:19:22,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:19:22,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:19:22,391 INFO L87 Difference]: Start difference. First operand 310 states and 339 transitions. Second operand 7 states. [2019-10-15 03:19:22,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:19:22,966 INFO L93 Difference]: Finished difference Result 336 states and 376 transitions. [2019-10-15 03:19:22,967 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 03:19:22,967 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 70 [2019-10-15 03:19:22,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:19:22,970 INFO L225 Difference]: With dead ends: 336 [2019-10-15 03:19:22,970 INFO L226 Difference]: Without dead ends: 333 [2019-10-15 03:19:22,971 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-15 03:19:22,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2019-10-15 03:19:22,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 310. [2019-10-15 03:19:22,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 310 states. [2019-10-15 03:19:22,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 338 transitions. [2019-10-15 03:19:22,995 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 338 transitions. Word has length 70 [2019-10-15 03:19:22,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:19:22,995 INFO L462 AbstractCegarLoop]: Abstraction has 310 states and 338 transitions. [2019-10-15 03:19:22,996 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:19:22,996 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 338 transitions. [2019-10-15 03:19:22,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-10-15 03:19:22,998 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:19:22,998 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] [2019-10-15 03:19:22,998 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:19:22,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:19:22,998 INFO L82 PathProgramCache]: Analyzing trace with hash 1201888274, now seen corresponding path program 1 times [2019-10-15 03:19:22,999 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:19:22,999 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665255135] [2019-10-15 03:19:22,999 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:19:22,999 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:19:22,999 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:19:23,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:19:23,190 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-15 03:19:23,190 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665255135] [2019-10-15 03:19:23,191 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [298179289] [2019-10-15 03:19:23,191 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 03:19:23,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:19:23,423 INFO L256 TraceCheckSpWp]: Trace formula consists of 733 conjuncts, 25 conjunts are in the unsatisfiable core [2019-10-15 03:19:23,434 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:19:23,567 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:19:23,567 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:19:24,118 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-15 03:19:24,118 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 03:19:24,119 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [14, 11] total 23 [2019-10-15 03:19:24,119 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702209947] [2019-10-15 03:19:24,119 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 03:19:24,120 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:19:24,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 03:19:24,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=431, Unknown=0, NotChecked=0, Total=506 [2019-10-15 03:19:24,120 INFO L87 Difference]: Start difference. First operand 310 states and 338 transitions. Second operand 11 states. [2019-10-15 03:19:24,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:19:24,820 INFO L93 Difference]: Finished difference Result 709 states and 805 transitions. [2019-10-15 03:19:24,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-15 03:19:24,822 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 83 [2019-10-15 03:19:24,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:19:24,827 INFO L225 Difference]: With dead ends: 709 [2019-10-15 03:19:24,827 INFO L226 Difference]: Without dead ends: 421 [2019-10-15 03:19:24,830 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=129, Invalid=683, Unknown=0, NotChecked=0, Total=812 [2019-10-15 03:19:24,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2019-10-15 03:19:24,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 413. [2019-10-15 03:19:24,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2019-10-15 03:19:24,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 453 transitions. [2019-10-15 03:19:24,892 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 453 transitions. Word has length 83 [2019-10-15 03:19:24,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:19:24,893 INFO L462 AbstractCegarLoop]: Abstraction has 413 states and 453 transitions. [2019-10-15 03:19:24,893 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 03:19:24,893 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 453 transitions. [2019-10-15 03:19:24,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2019-10-15 03:19:24,896 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:19:24,897 INFO L380 BasicCegarLoop]: trace histogram [3, 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] [2019-10-15 03:19:25,101 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:19:25,102 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:19:25,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:19:25,103 INFO L82 PathProgramCache]: Analyzing trace with hash -1415977376, now seen corresponding path program 1 times [2019-10-15 03:19:25,104 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:19:25,104 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386442548] [2019-10-15 03:19:25,104 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:19:25,104 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:19:25,104 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:19:25,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:19:25,405 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-15 03:19:25,405 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386442548] [2019-10-15 03:19:25,405 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1367698750] [2019-10-15 03:19:25,405 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:19:25,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:19:25,609 INFO L256 TraceCheckSpWp]: Trace formula consists of 846 conjuncts, 27 conjunts are in the unsatisfiable core [2019-10-15 03:19:25,616 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:19:25,774 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:19:25,867 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:19:26,004 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:19:26,004 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:19:26,375 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:19:26,728 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:19:26,729 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:19:27,356 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:19:27,391 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:19:27,612 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-15 03:19:27,613 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 03:19:27,613 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [14, 12] total 34 [2019-10-15 03:19:27,613 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892920352] [2019-10-15 03:19:27,614 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-15 03:19:27,614 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:19:27,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-15 03:19:27,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=964, Unknown=0, NotChecked=0, Total=1122 [2019-10-15 03:19:27,615 INFO L87 Difference]: Start difference. First operand 413 states and 453 transitions. Second operand 12 states. [2019-10-15 03:19:29,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:19:29,537 INFO L93 Difference]: Finished difference Result 1051 states and 1219 transitions. [2019-10-15 03:19:29,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-10-15 03:19:29,538 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 128 [2019-10-15 03:19:29,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:19:29,543 INFO L225 Difference]: With dead ends: 1051 [2019-10-15 03:19:29,543 INFO L226 Difference]: Without dead ends: 660 [2019-10-15 03:19:29,546 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 232 SyntacticMatches, 9 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=396, Invalid=2054, Unknown=0, NotChecked=0, Total=2450 [2019-10-15 03:19:29,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2019-10-15 03:19:29,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 631. [2019-10-15 03:19:29,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 631 states. [2019-10-15 03:19:29,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 713 transitions. [2019-10-15 03:19:29,589 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 713 transitions. Word has length 128 [2019-10-15 03:19:29,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:19:29,590 INFO L462 AbstractCegarLoop]: Abstraction has 631 states and 713 transitions. [2019-10-15 03:19:29,590 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-15 03:19:29,590 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 713 transitions. [2019-10-15 03:19:29,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2019-10-15 03:19:29,593 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:19:29,594 INFO L380 BasicCegarLoop]: trace histogram [3, 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] [2019-10-15 03:19:29,804 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:19:29,804 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:19:29,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:19:29,805 INFO L82 PathProgramCache]: Analyzing trace with hash 1008843704, now seen corresponding path program 1 times [2019-10-15 03:19:29,805 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:19:29,806 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133756671] [2019-10-15 03:19:29,806 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:19:29,806 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:19:29,807 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:19:29,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:19:30,156 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:19:30,157 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133756671] [2019-10-15 03:19:30,157 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1426506023] [2019-10-15 03:19:30,157 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:19:30,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:19:30,364 INFO L256 TraceCheckSpWp]: Trace formula consists of 852 conjuncts, 50 conjunts are in the unsatisfiable core [2019-10-15 03:19:30,408 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:19:30,579 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:19:30,615 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:19:30,773 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:19:30,773 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:19:31,120 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:19:31,163 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:19:31,165 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:19:31,246 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:19:31,247 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:19:31,365 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:19:31,397 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:19:31,397 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:19:31,419 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:19:31,420 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:19:31,564 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:19:31,565 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:19:31,648 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:19:31,819 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-15 03:19:31,820 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1140427641] [2019-10-15 03:19:31,849 INFO L162 IcfgInterpreter]: Started Sifa with 105 locations of interest [2019-10-15 03:19:31,849 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:19:31,856 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:19:31,871 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:19:31,871 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 03:19:40,606 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-15 03:19:42,471 WARN L191 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-15 03:19:42,609 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-15 03:19:42,736 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-15 03:19:42,863 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-15 03:19:43,115 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:19:43,357 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:19:43,548 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:19:43,742 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:19:44,126 WARN L191 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 542 DAG size of output: 540 [2019-10-15 03:19:44,284 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:19:44,448 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:19:44,576 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:19:44,724 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:19:44,892 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:19:44,899 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 184 for LOIs [2019-10-15 03:19:45,191 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 509 [2019-10-15 03:19:45,193 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 544 for LOIs [2019-10-15 03:19:45,307 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:19:45,446 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:19:45,575 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-15 03:19:45,702 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:19:45,810 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:19:45,934 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-15 03:19:46,092 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:19:46,308 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-15 03:19:46,520 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 554 DAG size of output: 544 [2019-10-15 03:19:46,758 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-15 03:19:46,873 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:19:46,976 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:19:47,089 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-15 03:19:47,299 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:19:47,502 WARN L191 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-15 03:19:47,810 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-15 03:19:48,135 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-15 03:19:48,442 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-15 03:19:48,766 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-15 03:19:48,878 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:19:49,088 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-15 03:19:49,299 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:19:49,411 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-15 03:19:49,621 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:19:49,733 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-15 03:19:49,859 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-15 03:19:49,964 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-15 03:19:50,081 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-15 03:19:50,316 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 554 DAG size of output: 552 [2019-10-15 03:19:50,444 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-15 03:19:50,584 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-15 03:19:50,688 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-15 03:19:50,792 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-15 03:19:50,903 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-15 03:19:51,026 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-10-15 03:19:51,130 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-10-15 03:19:51,258 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:19:51,488 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-15 03:19:51,595 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:19:51,786 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:19:51,977 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 554 [2019-10-15 03:19:52,105 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-10-15 03:19:52,229 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:19:52,355 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-15 03:19:52,463 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-15 03:19:52,603 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-15 03:19:52,713 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-15 03:19:52,822 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-15 03:19:52,947 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-15 03:19:53,080 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-15 03:19:53,192 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-15 03:19:53,316 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-15 03:19:53,430 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-15 03:19:53,539 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-15 03:19:53,667 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-15 03:19:53,776 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-15 03:19:53,884 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-15 03:19:54,003 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-15 03:19:54,252 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 554 DAG size of output: 552 [2019-10-15 03:19:54,357 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-15 03:19:54,474 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-15 03:19:54,662 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 554 DAG size of output: 552 [2019-10-15 03:19:54,768 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-15 03:19:54,882 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-15 03:19:54,986 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-15 03:19:55,089 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-15 03:19:55,203 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-15 03:19:55,331 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:19:55,438 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:19:55,567 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:19:55,893 WARN L191 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 554 [2019-10-15 03:19:55,998 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-10-15 03:19:56,163 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:19:56,372 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 554 [2019-10-15 03:19:56,477 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-10-15 03:19:56,592 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:19:56,781 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 563 DAG size of output: 554 [2019-10-15 03:19:56,886 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 554