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_product58.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:18:55,765 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:18:55,768 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:18:55,787 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:18:55,788 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:18:55,790 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:18:55,792 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:18:55,802 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:18:55,807 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:18:55,811 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:18:55,813 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:18:55,814 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:18:55,815 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:18:55,817 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:18:55,820 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:18:55,821 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:18:55,823 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:18:55,824 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:18:55,825 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:18:55,831 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:18:55,836 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:18:55,840 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:18:55,843 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:18:55,844 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:18:55,847 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:18:55,847 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:18:55,847 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:18:55,849 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:18:55,851 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:18:55,853 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:18:55,853 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:18:55,855 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:18:55,856 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:18:55,857 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:18:55,859 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:18:55,859 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:18:55,860 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:18:55,860 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:18:55,860 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:18:55,861 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:18:55,862 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:18:55,863 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 23:18:55,888 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:18:55,888 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:18:55,890 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:18:55,890 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:18:55,890 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:18:55,891 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:18:55,891 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:18:55,891 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:18:55,892 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:18:55,892 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:18:55,893 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:18:55,893 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:18:55,893 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:18:55,893 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:18:55,893 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:18:55,894 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:18:55,894 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:18:55,895 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:18:55,896 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:18:55,896 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:18:55,896 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:18:55,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:18:55,896 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:18:55,897 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:18:55,897 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:18:55,897 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:18:55,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:18:55,898 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:18:55,898 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 23:18:56,201 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:18:56,223 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:18:56,226 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:18:56,227 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:18:56,227 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:18:56,228 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product58.cil.c [2019-10-13 23:18:56,297 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e77a90199/84b925a61bd047c7acd89672d6a49995/FLAGc47a08921 [2019-10-13 23:18:56,806 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:18:56,807 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product58.cil.c [2019-10-13 23:18:56,829 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e77a90199/84b925a61bd047c7acd89672d6a49995/FLAGc47a08921 [2019-10-13 23:18:57,108 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e77a90199/84b925a61bd047c7acd89672d6a49995 [2019-10-13 23:18:57,118 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:18:57,120 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:18:57,121 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:18:57,122 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:18:57,125 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:18:57,126 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:18:57" (1/1) ... [2019-10-13 23:18:57,130 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dab14c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:57, skipping insertion in model container [2019-10-13 23:18:57,130 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:18:57" (1/1) ... [2019-10-13 23:18:57,138 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:18:57,195 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:18:57,584 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:18:57,609 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:18:57,723 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:18:57,764 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:18:57,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:57 WrapperNode [2019-10-13 23:18:57,765 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:18:57,766 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:18:57,766 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:18:57,766 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:18:57,781 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:57" (1/1) ... [2019-10-13 23:18:57,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:57" (1/1) ... [2019-10-13 23:18:57,816 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:57" (1/1) ... [2019-10-13 23:18:57,816 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:57" (1/1) ... [2019-10-13 23:18:57,855 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:57" (1/1) ... [2019-10-13 23:18:57,872 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:57" (1/1) ... [2019-10-13 23:18:57,881 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:57" (1/1) ... [2019-10-13 23:18:57,902 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:18:57,903 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:18:57,903 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:18:57,903 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:18:57,909 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:57" (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 23:18:57,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:18:57,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:18:57,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:18:57,988 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 23:18:57,988 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 23:18:57,989 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 23:18:57,990 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 23:18:57,990 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 23:18:57,990 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 23:18:57,991 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 23:18:57,991 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-13 23:18:57,992 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-13 23:18:57,992 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-13 23:18:57,992 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-13 23:18:57,992 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:18:57,992 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:18:57,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:18:57,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:18:57,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:18:57,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:18:57,996 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 23:18:57,996 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 23:18:57,997 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:18:57,997 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 23:18:57,997 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:18:57,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:18:57,998 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:18:57,998 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 23:18:57,998 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-13 23:18:57,998 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 23:18:57,998 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 23:18:57,999 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 23:18:57,999 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 23:18:57,999 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 23:18:57,999 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 23:18:58,000 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 23:18:58,000 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 23:18:58,000 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 23:18:58,000 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-13 23:18:58,000 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-13 23:18:58,000 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:18:58,000 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:18:58,001 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:18:58,001 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:18:58,001 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:18:58,001 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:18:58,001 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:18:58,001 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 23:18:58,002 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 23:18:58,002 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 23:18:58,002 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 23:18:58,002 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 23:18:58,002 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 23:18:58,002 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 23:18:58,002 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-13 23:18:58,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:18:58,003 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:18:58,003 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 23:18:58,003 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-13 23:18:58,004 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-13 23:18:58,004 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-13 23:18:58,004 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:18:58,004 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:18:58,004 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:18:58,004 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:18:58,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:18:58,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:18:58,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:18:58,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:18:58,005 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:18:58,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:18:58,005 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:18:58,006 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:18:58,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:18:58,007 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:18:58,007 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:18:58,008 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:18:58,008 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 23:18:58,008 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 23:18:58,008 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 23:18:58,008 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 23:18:58,009 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:18:58,009 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:18:58,009 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 23:18:58,010 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:18:58,010 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:18:58,010 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:18:58,011 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:18:58,011 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-13 23:18:58,011 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 23:18:58,012 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 23:18:58,012 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 23:18:58,012 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-13 23:18:58,012 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 23:18:58,012 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 23:18:58,012 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-13 23:18:58,012 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 23:18:58,013 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 23:18:58,013 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:18:58,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:18:58,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:18:58,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:18:59,659 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:18:59,659 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 23:18:59,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:18:59 BoogieIcfgContainer [2019-10-13 23:18:59,661 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:18:59,662 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:18:59,662 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:18:59,665 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:18:59,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:18:57" (1/3) ... [2019-10-13 23:18:59,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35bc79d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:18:59, skipping insertion in model container [2019-10-13 23:18:59,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:57" (2/3) ... [2019-10-13 23:18:59,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35bc79d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:18:59, skipping insertion in model container [2019-10-13 23:18:59,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:18:59" (3/3) ... [2019-10-13 23:18:59,669 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product58.cil.c [2019-10-13 23:18:59,679 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:18:59,688 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:18:59,699 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:18:59,728 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:18:59,728 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:18:59,728 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:18:59,728 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:18:59,729 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:18:59,729 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:18:59,729 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:18:59,729 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:18:59,752 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states. [2019-10-13 23:18:59,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-13 23:18:59,762 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:18:59,763 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 23:18:59,765 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:18:59,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:18:59,771 INFO L82 PathProgramCache]: Analyzing trace with hash -1293516070, now seen corresponding path program 1 times [2019-10-13 23:18:59,781 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:18:59,781 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149882913] [2019-10-13 23:18:59,782 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:59,782 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:59,782 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:18:59,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:19:00,137 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:19:00,138 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149882913] [2019-10-13 23:19:00,139 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:19:00,139 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:19:00,140 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282475037] [2019-10-13 23:19:00,145 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:19:00,145 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:19:00,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:19:00,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:19:00,163 INFO L87 Difference]: Start difference. First operand 164 states. Second operand 2 states. [2019-10-13 23:19:00,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:19:00,223 INFO L93 Difference]: Finished difference Result 258 states and 307 transitions. [2019-10-13 23:19:00,223 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:19:00,224 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2019-10-13 23:19:00,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:19:00,238 INFO L225 Difference]: With dead ends: 258 [2019-10-13 23:19:00,239 INFO L226 Difference]: Without dead ends: 131 [2019-10-13 23:19:00,246 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 23:19:00,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2019-10-13 23:19:00,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2019-10-13 23:19:00,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2019-10-13 23:19:00,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 149 transitions. [2019-10-13 23:19:00,345 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 149 transitions. Word has length 52 [2019-10-13 23:19:00,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:19:00,345 INFO L462 AbstractCegarLoop]: Abstraction has 131 states and 149 transitions. [2019-10-13 23:19:00,346 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:19:00,346 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 149 transitions. [2019-10-13 23:19:00,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-10-13 23:19:00,350 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:19:00,350 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 23:19:00,350 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:19:00,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:19:00,351 INFO L82 PathProgramCache]: Analyzing trace with hash 1293511669, now seen corresponding path program 1 times [2019-10-13 23:19:00,351 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:19:00,352 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10553112] [2019-10-13 23:19:00,352 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:00,352 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:00,353 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:19:00,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:19:00,507 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 23:19:00,508 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10553112] [2019-10-13 23:19:00,509 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:19:00,509 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:19:00,509 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914383048] [2019-10-13 23:19:00,513 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:19:00,513 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:19:00,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:19:00,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:19:00,515 INFO L87 Difference]: Start difference. First operand 131 states and 149 transitions. Second operand 3 states. [2019-10-13 23:19:00,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:19:00,560 INFO L93 Difference]: Finished difference Result 212 states and 241 transitions. [2019-10-13 23:19:00,561 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:19:00,561 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2019-10-13 23:19:00,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:19:00,566 INFO L225 Difference]: With dead ends: 212 [2019-10-13 23:19:00,566 INFO L226 Difference]: Without dead ends: 123 [2019-10-13 23:19:00,570 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 23:19:00,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2019-10-13 23:19:00,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2019-10-13 23:19:00,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2019-10-13 23:19:00,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 138 transitions. [2019-10-13 23:19:00,587 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 138 transitions. Word has length 53 [2019-10-13 23:19:00,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:19:00,587 INFO L462 AbstractCegarLoop]: Abstraction has 123 states and 138 transitions. [2019-10-13 23:19:00,587 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:19:00,588 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 138 transitions. [2019-10-13 23:19:00,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-10-13 23:19:00,590 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:19:00,590 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] [2019-10-13 23:19:00,590 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:19:00,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:19:00,591 INFO L82 PathProgramCache]: Analyzing trace with hash -613195749, now seen corresponding path program 1 times [2019-10-13 23:19:00,591 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:19:00,591 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686907568] [2019-10-13 23:19:00,592 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:00,592 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:00,592 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:19:00,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:19:00,802 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 23:19:00,803 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686907568] [2019-10-13 23:19:00,803 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:19:00,803 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:19:00,803 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024522790] [2019-10-13 23:19:00,804 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:19:00,804 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:19:00,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:19:00,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:19:00,805 INFO L87 Difference]: Start difference. First operand 123 states and 138 transitions. Second operand 7 states. [2019-10-13 23:19:01,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:19:01,142 INFO L93 Difference]: Finished difference Result 221 states and 252 transitions. [2019-10-13 23:19:01,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 23:19:01,143 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-10-13 23:19:01,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:19:01,145 INFO L225 Difference]: With dead ends: 221 [2019-10-13 23:19:01,145 INFO L226 Difference]: Without dead ends: 123 [2019-10-13 23:19:01,146 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-13 23:19:01,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2019-10-13 23:19:01,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2019-10-13 23:19:01,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2019-10-13 23:19:01,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 137 transitions. [2019-10-13 23:19:01,165 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 137 transitions. Word has length 56 [2019-10-13 23:19:01,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:19:01,168 INFO L462 AbstractCegarLoop]: Abstraction has 123 states and 137 transitions. [2019-10-13 23:19:01,168 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:19:01,168 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 137 transitions. [2019-10-13 23:19:01,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-10-13 23:19:01,171 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:19:01,171 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] [2019-10-13 23:19:01,171 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:19:01,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:19:01,172 INFO L82 PathProgramCache]: Analyzing trace with hash 368878537, now seen corresponding path program 1 times [2019-10-13 23:19:01,172 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:19:01,172 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877595761] [2019-10-13 23:19:01,172 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:01,172 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:01,173 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:19:01,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:19:01,300 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 23:19:01,300 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877595761] [2019-10-13 23:19:01,300 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:19:01,301 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 23:19:01,301 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2989778] [2019-10-13 23:19:01,301 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 23:19:01,302 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:19:01,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 23:19:01,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 23:19:01,302 INFO L87 Difference]: Start difference. First operand 123 states and 137 transitions. Second operand 5 states. [2019-10-13 23:19:01,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:19:01,814 INFO L93 Difference]: Finished difference Result 317 states and 372 transitions. [2019-10-13 23:19:01,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 23:19:01,816 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 69 [2019-10-13 23:19:01,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:19:01,818 INFO L225 Difference]: With dead ends: 317 [2019-10-13 23:19:01,819 INFO L226 Difference]: Without dead ends: 219 [2019-10-13 23:19:01,820 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 [2019-10-13 23:19:01,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2019-10-13 23:19:01,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 202. [2019-10-13 23:19:01,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2019-10-13 23:19:01,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 225 transitions. [2019-10-13 23:19:01,845 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 225 transitions. Word has length 69 [2019-10-13 23:19:01,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:19:01,846 INFO L462 AbstractCegarLoop]: Abstraction has 202 states and 225 transitions. [2019-10-13 23:19:01,846 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 23:19:01,846 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 225 transitions. [2019-10-13 23:19:01,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-10-13 23:19:01,848 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:19:01,848 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] [2019-10-13 23:19:01,848 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:19:01,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:19:01,849 INFO L82 PathProgramCache]: Analyzing trace with hash 578941751, now seen corresponding path program 1 times [2019-10-13 23:19:01,849 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:19:01,849 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217528196] [2019-10-13 23:19:01,850 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:01,850 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:01,850 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:19:01,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:19:01,981 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 23:19:01,981 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217528196] [2019-10-13 23:19:01,982 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:19:01,982 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:19:01,982 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913950064] [2019-10-13 23:19:01,982 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:19:01,983 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:19:01,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:19:01,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:19:01,983 INFO L87 Difference]: Start difference. First operand 202 states and 225 transitions. Second operand 7 states. [2019-10-13 23:19:02,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:19:02,589 INFO L93 Difference]: Finished difference Result 395 states and 455 transitions. [2019-10-13 23:19:02,589 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 23:19:02,589 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 78 [2019-10-13 23:19:02,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:19:02,592 INFO L225 Difference]: With dead ends: 395 [2019-10-13 23:19:02,592 INFO L226 Difference]: Without dead ends: 218 [2019-10-13 23:19:02,593 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-13 23:19:02,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2019-10-13 23:19:02,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 201. [2019-10-13 23:19:02,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2019-10-13 23:19:02,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 222 transitions. [2019-10-13 23:19:02,613 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 222 transitions. Word has length 78 [2019-10-13 23:19:02,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:19:02,613 INFO L462 AbstractCegarLoop]: Abstraction has 201 states and 222 transitions. [2019-10-13 23:19:02,613 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:19:02,614 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 222 transitions. [2019-10-13 23:19:02,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2019-10-13 23:19:02,615 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:19:02,615 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] [2019-10-13 23:19:02,616 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:19:02,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:19:02,616 INFO L82 PathProgramCache]: Analyzing trace with hash -151437386, now seen corresponding path program 1 times [2019-10-13 23:19:02,616 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:19:02,616 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578004105] [2019-10-13 23:19:02,617 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:02,617 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:02,617 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:19:02,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:19:02,870 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 23:19:02,871 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578004105] [2019-10-13 23:19:02,872 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:19:02,872 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 23:19:02,873 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173228868] [2019-10-13 23:19:02,873 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 23:19:02,874 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:19:02,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 23:19:02,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2019-10-13 23:19:02,875 INFO L87 Difference]: Start difference. First operand 201 states and 222 transitions. Second operand 12 states. [2019-10-13 23:19:04,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:19:04,006 INFO L93 Difference]: Finished difference Result 526 states and 603 transitions. [2019-10-13 23:19:04,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-13 23:19:04,009 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 91 [2019-10-13 23:19:04,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:19:04,013 INFO L225 Difference]: With dead ends: 526 [2019-10-13 23:19:04,013 INFO L226 Difference]: Without dead ends: 350 [2019-10-13 23:19:04,015 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2019-10-13 23:19:04,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2019-10-13 23:19:04,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 341. [2019-10-13 23:19:04,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states. [2019-10-13 23:19:04,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 388 transitions. [2019-10-13 23:19:04,044 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 388 transitions. Word has length 91 [2019-10-13 23:19:04,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:19:04,045 INFO L462 AbstractCegarLoop]: Abstraction has 341 states and 388 transitions. [2019-10-13 23:19:04,045 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 23:19:04,045 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 388 transitions. [2019-10-13 23:19:04,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-13 23:19:04,047 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:19:04,048 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] [2019-10-13 23:19:04,048 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:19:04,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:19:04,048 INFO L82 PathProgramCache]: Analyzing trace with hash -1054025491, now seen corresponding path program 1 times [2019-10-13 23:19:04,049 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:19:04,049 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603049733] [2019-10-13 23:19:04,049 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:04,049 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:04,049 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:19:04,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:19:04,249 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 23:19:04,250 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603049733] [2019-10-13 23:19:04,250 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:19:04,250 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 23:19:04,250 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050191535] [2019-10-13 23:19:04,251 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 23:19:04,251 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:19:04,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 23:19:04,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-13 23:19:04,252 INFO L87 Difference]: Start difference. First operand 341 states and 388 transitions. Second operand 9 states. [2019-10-13 23:19:05,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:19:05,216 INFO L93 Difference]: Finished difference Result 1059 states and 1240 transitions. [2019-10-13 23:19:05,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-13 23:19:05,216 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 94 [2019-10-13 23:19:05,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:19:05,222 INFO L225 Difference]: With dead ends: 1059 [2019-10-13 23:19:05,222 INFO L226 Difference]: Without dead ends: 804 [2019-10-13 23:19:05,224 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2019-10-13 23:19:05,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2019-10-13 23:19:05,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 699. [2019-10-13 23:19:05,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2019-10-13 23:19:05,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 802 transitions. [2019-10-13 23:19:05,299 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 802 transitions. Word has length 94 [2019-10-13 23:19:05,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:19:05,300 INFO L462 AbstractCegarLoop]: Abstraction has 699 states and 802 transitions. [2019-10-13 23:19:05,300 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 23:19:05,300 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 802 transitions. [2019-10-13 23:19:05,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-10-13 23:19:05,302 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:19:05,302 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:19:05,303 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:19:05,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:19:05,303 INFO L82 PathProgramCache]: Analyzing trace with hash -1307566572, now seen corresponding path program 1 times [2019-10-13 23:19:05,303 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:19:05,304 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545539166] [2019-10-13 23:19:05,304 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:05,304 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:05,304 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:19:05,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:19:05,440 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 19 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-13 23:19:05,440 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545539166] [2019-10-13 23:19:05,440 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2025606329] [2019-10-13 23:19:05,440 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 23:19:05,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:19:05,704 INFO L256 TraceCheckSpWp]: Trace formula consists of 942 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-13 23:19:05,718 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:19:05,925 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 23 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:19:05,926 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:19:06,439 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 19 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-13 23:19:06,440 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [367016460] [2019-10-13 23:19:06,478 INFO L162 IcfgInterpreter]: Started Sifa with 113 locations of interest [2019-10-13 23:19:06,478 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:19:06,487 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:19:06,495 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:19:06,495 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 23:19:16,717 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2019-10-13 23:19:18,409 WARN L191 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-13 23:19:18,534 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-13 23:19:18,723 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-13 23:19:18,851 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-13 23:19:19,097 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:19:19,322 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:19:19,550 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:19:19,742 WARN L191 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:19:20,098 WARN L191 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 546 DAG size of output: 544 [2019-10-13 23:19:20,226 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:19:20,356 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:19:20,462 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:19:20,595 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:19:20,713 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:19:20,721 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 187 for LOIs [2019-10-13 23:19:20,961 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 546 for LOIs [2019-10-13 23:19:21,080 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:19:21,217 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:19:21,350 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:21,463 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:19:21,566 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:19:21,732 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:21,858 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:19:21,971 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:19:22,175 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:22,455 WARN L191 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 546 [2019-10-13 23:19:22,562 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:19:22,703 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:23,037 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:23,404 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:23,609 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:19:23,739 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:23,863 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:19:24,089 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:24,406 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:24,517 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:19:24,626 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:19:24,747 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:25,060 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:25,270 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:19:25,415 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:25,619 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:19:25,739 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:25,873 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:25,984 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:26,128 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:26,345 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:19:26,458 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:26,607 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:26,718 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:26,832 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:26,951 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:27,131 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:19:27,265 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:19:27,396 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:19:27,612 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-13 23:19:27,723 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:19:27,851 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:19:27,962 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:19:28,075 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:19:28,208 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:19:28,325 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-13 23:19:28,440 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-13 23:19:28,590 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-13 23:19:28,709 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-13 23:19:28,825 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-13 23:19:28,954 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-13 23:19:29,115 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-13 23:19:29,259 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-13 23:19:29,409 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-13 23:19:29,530 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-13 23:19:29,646 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-13 23:19:29,776 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-13 23:19:29,891 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-13 23:19:30,007 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-13 23:19:30,134 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-13 23:19:30,359 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:19:30,470 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:30,595 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:30,802 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:19:30,914 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:31,043 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:31,152 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:31,262 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:31,405 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:31,530 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:19:31,660 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:19:31,786 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:19:31,909 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:19:32,022 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:19:32,157 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:19:32,271 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:19:32,394 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:19:32,520 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:19:32,720 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 575 DAG size of output: 566 [2019-10-13 23:19:32,831 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:19:32,957 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:19:33,156 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 577 DAG size of output: 568 [2019-10-13 23:19:33,269 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:19:33,400 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-13 23:19:33,633 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:19:33,743 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:33,870 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:34,077 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:19:34,187 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:34,331 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:34,440 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:34,550 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:34,669 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:34,885 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:19:34,996 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:35,124 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:35,341 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:19:35,451 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:35,573 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:35,683 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:35,794 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:35,921 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:36,059 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:19:36,173 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:19:36,298 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:19:36,660 WARN L191 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-13 23:19:36,772 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:19:36,897 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:19:37,094 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-13 23:19:37,207 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:19:37,330 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:19:37,534 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 575 DAG size of output: 568 [2019-10-13 23:19:37,647 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:19:37,772 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:19:37,975 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:19:38,084 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:38,205 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564