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_product58.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:19:15,897 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:19:15,900 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:19:15,911 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:19:15,912 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:19:15,913 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:19:15,914 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:19:15,916 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:19:15,917 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:19:15,918 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:19:15,919 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:19:15,920 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:19:15,920 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:19:15,921 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:19:15,922 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:19:15,923 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:19:15,924 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:19:15,925 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:19:15,926 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:19:15,928 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:19:15,930 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:19:15,930 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:19:15,931 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:19:15,932 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:19:15,934 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:19:15,934 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:19:15,934 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:19:15,935 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:19:15,936 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:19:15,936 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:19:15,937 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:19:15,937 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:19:15,938 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:19:15,939 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:19:15,940 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:19:15,940 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:19:15,941 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:19:15,941 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:19:15,941 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:19:15,942 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:19:15,943 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:19:15,945 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 03:19:15,959 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:19:15,959 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:19:15,960 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:19:15,960 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:19:15,961 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:19:15,961 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:19:15,961 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:19:15,961 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:19:15,961 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:19:15,962 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:19:15,962 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:19:15,962 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:19:15,962 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:19:15,962 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:19:15,963 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:19:15,963 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:19:15,963 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:19:15,963 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:19:15,963 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:19:15,964 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:19:15,964 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:19:15,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:19:15,964 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:19:15,964 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:19:15,964 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:19:15,965 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:19:15,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:19:15,965 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:19:15,965 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 03:19:16,243 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:19:16,256 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:19:16,260 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:19:16,261 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:19:16,261 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:19:16,262 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product58.cil.c [2019-10-15 03:19:16,325 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41f5f7091/3872a0e7a4d04495b1afdebf6c98a114/FLAG5b2f66302 [2019-10-15 03:19:16,842 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:19:16,842 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product58.cil.c [2019-10-15 03:19:16,854 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41f5f7091/3872a0e7a4d04495b1afdebf6c98a114/FLAG5b2f66302 [2019-10-15 03:19:17,173 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41f5f7091/3872a0e7a4d04495b1afdebf6c98a114 [2019-10-15 03:19:17,184 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:19:17,185 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:19:17,186 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:19:17,186 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:19:17,193 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:19:17,194 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:19:17" (1/1) ... [2019-10-15 03:19:17,196 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39a2ee5e 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 03:19:17,196 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:19:17" (1/1) ... [2019-10-15 03:19:17,204 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:19:17,260 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:19:17,760 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:19:17,787 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:19:17,873 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:19:17,916 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:19:17,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:19:17 WrapperNode [2019-10-15 03:19:17,917 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:19:17,917 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:19:17,918 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:19:17,918 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:19:17,929 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 03:19:17,929 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 03:19:17,962 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 03:19:17,962 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 03:19:18,000 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 03:19:18,010 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 03:19:18,015 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 03:19:18,023 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:19:18,024 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:19:18,024 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:19:18,024 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:19:18,025 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 03:19:18,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:19:18,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:19:18,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:19:18,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:19:18,112 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-15 03:19:18,113 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-15 03:19:18,114 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-15 03:19:18,114 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-15 03:19:18,114 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-15 03:19:18,114 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-15 03:19:18,115 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-15 03:19:18,115 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-15 03:19:18,116 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-15 03:19:18,116 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-15 03:19:18,116 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:19:18,116 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-15 03:19:18,119 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:19:18,119 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-15 03:19:18,119 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-15 03:19:18,119 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-15 03:19:18,120 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-15 03:19:18,120 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-15 03:19:18,121 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-15 03:19:18,121 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-15 03:19:18,121 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-15 03:19:18,121 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-15 03:19:18,121 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-15 03:19:18,122 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-15 03:19:18,122 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-15 03:19:18,122 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-15 03:19:18,122 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-10-15 03:19:18,122 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:19:18,122 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:19:18,123 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:19:18,123 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:19:18,123 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:19:18,124 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:19:18,124 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:19:18,124 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:19:18,124 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:19:18,124 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:19:18,124 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:19:18,125 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:19:18,125 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:19:18,125 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:19:18,125 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:19:18,125 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-15 03:19:18,125 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-15 03:19:18,126 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-15 03:19:18,126 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-15 03:19:18,126 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-15 03:19:18,126 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-15 03:19:18,126 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-15 03:19:18,126 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-15 03:19:18,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:19:18,127 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-15 03:19:18,127 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-15 03:19:18,127 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-15 03:19:18,127 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-15 03:19:18,128 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:19:18,128 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:19:18,128 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-15 03:19:18,128 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:19:18,128 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:19:18,128 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:19:18,129 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:19:18,129 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-15 03:19:18,129 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-15 03:19:18,129 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-15 03:19:18,129 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-15 03:19:18,129 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-10-15 03:19:18,129 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-15 03:19:18,130 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-15 03:19:18,130 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-15 03:19:18,131 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-15 03:19:18,131 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-15 03:19:18,131 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-15 03:19:18,132 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-15 03:19:18,132 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:19:18,132 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:19:18,133 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:19:18,133 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:19:18,133 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:19:18,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:19:18,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:19:18,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:19:18,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:19:18,135 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:19:18,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:19:18,135 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:19:18,135 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:19:18,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:19:18,136 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:19:18,136 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:19:18,136 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:19:18,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:19:18,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:19:18,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:19:20,062 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:19:20,062 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-15 03:19:20,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:19:20 BoogieIcfgContainer [2019-10-15 03:19:20,064 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:19:20,065 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:19:20,065 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:19:20,069 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:19:20,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:19:17" (1/3) ... [2019-10-15 03:19:20,070 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b4ebb2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:19:20, skipping insertion in model container [2019-10-15 03:19:20,070 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 03:19:20,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b4ebb2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:19:20, skipping insertion in model container [2019-10-15 03:19:20,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:19:20" (3/3) ... [2019-10-15 03:19:20,073 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product58.cil.c [2019-10-15 03:19:20,083 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:19:20,093 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:19:20,105 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:19:20,142 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:19:20,142 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:19:20,142 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:19:20,142 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:19:20,143 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:19:20,143 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:19:20,143 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:19:20,144 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:19:20,171 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states. [2019-10-15 03:19:20,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-10-15 03:19:20,181 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:19:20,182 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 03:19:20,184 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:19:20,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:19:20,190 INFO L82 PathProgramCache]: Analyzing trace with hash 1144410370, now seen corresponding path program 1 times [2019-10-15 03:19:20,200 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:19:20,201 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120163729] [2019-10-15 03:19:20,201 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:19:20,202 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:19:20,202 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:19:20,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:19:20,624 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 03:19:20,625 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120163729] [2019-10-15 03:19:20,625 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:19:20,626 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:19:20,626 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793454693] [2019-10-15 03:19:20,631 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:19:20,632 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:19:20,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:19:20,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:19:20,646 INFO L87 Difference]: Start difference. First operand 154 states. Second operand 2 states. [2019-10-15 03:19:20,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:19:20,691 INFO L93 Difference]: Finished difference Result 241 states and 288 transitions. [2019-10-15 03:19:20,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:19:20,694 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 42 [2019-10-15 03:19:20,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:19:20,707 INFO L225 Difference]: With dead ends: 241 [2019-10-15 03:19:20,708 INFO L226 Difference]: Without dead ends: 121 [2019-10-15 03:19:20,713 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 03:19:20,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2019-10-15 03:19:20,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2019-10-15 03:19:20,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2019-10-15 03:19:20,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 138 transitions. [2019-10-15 03:19:20,775 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 138 transitions. Word has length 42 [2019-10-15 03:19:20,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:19:20,776 INFO L462 AbstractCegarLoop]: Abstraction has 121 states and 138 transitions. [2019-10-15 03:19:20,776 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:19:20,777 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 138 transitions. [2019-10-15 03:19:20,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-10-15 03:19:20,784 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:19:20,784 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 03:19:20,785 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:19:20,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:19:20,786 INFO L82 PathProgramCache]: Analyzing trace with hash -1234064028, now seen corresponding path program 1 times [2019-10-15 03:19:20,787 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:19:20,787 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440066990] [2019-10-15 03:19:20,787 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:19:20,787 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:19:20,787 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:19:20,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:19:20,982 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 03:19:20,982 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440066990] [2019-10-15 03:19:20,983 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:19:20,983 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:19:20,983 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106551472] [2019-10-15 03:19:20,985 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:19:20,986 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:19:20,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:19:20,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:19:20,987 INFO L87 Difference]: Start difference. First operand 121 states and 138 transitions. Second operand 3 states. [2019-10-15 03:19:21,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:19:21,019 INFO L93 Difference]: Finished difference Result 195 states and 222 transitions. [2019-10-15 03:19:21,025 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:19:21,026 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2019-10-15 03:19:21,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:19:21,028 INFO L225 Difference]: With dead ends: 195 [2019-10-15 03:19:21,029 INFO L226 Difference]: Without dead ends: 113 [2019-10-15 03:19:21,030 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 03:19:21,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2019-10-15 03:19:21,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2019-10-15 03:19:21,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-10-15 03:19:21,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 127 transitions. [2019-10-15 03:19:21,063 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 127 transitions. Word has length 43 [2019-10-15 03:19:21,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:19:21,064 INFO L462 AbstractCegarLoop]: Abstraction has 113 states and 127 transitions. [2019-10-15 03:19:21,064 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:19:21,064 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 127 transitions. [2019-10-15 03:19:21,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-15 03:19:21,068 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:19:21,069 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:19:21,069 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:19:21,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:19:21,072 INFO L82 PathProgramCache]: Analyzing trace with hash -25820174, now seen corresponding path program 1 times [2019-10-15 03:19:21,072 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:19:21,072 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689792627] [2019-10-15 03:19:21,072 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:19:21,073 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:19:21,073 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:19:21,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:19:21,262 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 03:19:21,263 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689792627] [2019-10-15 03:19:21,263 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:19:21,263 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:19:21,264 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555931718] [2019-10-15 03:19:21,264 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:19:21,264 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:19:21,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:19:21,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:19:21,265 INFO L87 Difference]: Start difference. First operand 113 states and 127 transitions. Second operand 7 states. [2019-10-15 03:19:21,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:19:21,576 INFO L93 Difference]: Finished difference Result 204 states and 233 transitions. [2019-10-15 03:19:21,576 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 03:19:21,576 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 46 [2019-10-15 03:19:21,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:19:21,578 INFO L225 Difference]: With dead ends: 204 [2019-10-15 03:19:21,579 INFO L226 Difference]: Without dead ends: 113 [2019-10-15 03:19:21,580 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 [2019-10-15 03:19:21,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2019-10-15 03:19:21,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2019-10-15 03:19:21,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-10-15 03:19:21,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 126 transitions. [2019-10-15 03:19:21,593 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 126 transitions. Word has length 46 [2019-10-15 03:19:21,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:19:21,593 INFO L462 AbstractCegarLoop]: Abstraction has 113 states and 126 transitions. [2019-10-15 03:19:21,593 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:19:21,593 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 126 transitions. [2019-10-15 03:19:21,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-10-15 03:19:21,595 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:19:21,595 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] [2019-10-15 03:19:21,596 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:19:21,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:19:21,596 INFO L82 PathProgramCache]: Analyzing trace with hash 1368748269, now seen corresponding path program 1 times [2019-10-15 03:19:21,596 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:19:21,597 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656976291] [2019-10-15 03:19:21,597 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:19:21,597 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:19:21,597 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:19:21,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:19:21,681 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 03:19:21,682 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656976291] [2019-10-15 03:19:21,682 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:19:21,682 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 03:19:21,683 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515490789] [2019-10-15 03:19:21,683 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 03:19:21,683 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:19:21,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 03:19:21,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 03:19:21,684 INFO L87 Difference]: Start difference. First operand 113 states and 126 transitions. Second operand 5 states. [2019-10-15 03:19:22,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:19:22,173 INFO L93 Difference]: Finished difference Result 294 states and 344 transitions. [2019-10-15 03:19:22,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 03:19:22,174 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 59 [2019-10-15 03:19:22,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:19:22,178 INFO L225 Difference]: With dead ends: 294 [2019-10-15 03:19:22,178 INFO L226 Difference]: Without dead ends: 203 [2019-10-15 03:19:22,183 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 03:19:22,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2019-10-15 03:19:22,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 186. [2019-10-15 03:19:22,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2019-10-15 03:19:22,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 205 transitions. [2019-10-15 03:19:22,264 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 205 transitions. Word has length 59 [2019-10-15 03:19:22,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:19:22,265 INFO L462 AbstractCegarLoop]: Abstraction has 186 states and 205 transitions. [2019-10-15 03:19:22,265 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 03:19:22,266 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 205 transitions. [2019-10-15 03:19:22,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-10-15 03:19:22,271 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:19:22,271 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] [2019-10-15 03:19:22,271 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:19:22,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:19:22,272 INFO L82 PathProgramCache]: Analyzing trace with hash -508188684, now seen corresponding path program 1 times [2019-10-15 03:19:22,272 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:19:22,272 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143296684] [2019-10-15 03:19:22,273 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:19:22,273 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:19:22,273 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:19:22,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:19:22,401 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 03:19:22,402 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143296684] [2019-10-15 03:19:22,402 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:19:22,402 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 03:19:22,402 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203298356] [2019-10-15 03:19:22,403 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 03:19:22,403 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:19:22,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 03:19:22,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 03:19:22,404 INFO L87 Difference]: Start difference. First operand 186 states and 205 transitions. Second operand 6 states. [2019-10-15 03:19:22,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:19:22,616 INFO L93 Difference]: Finished difference Result 500 states and 568 transitions. [2019-10-15 03:19:22,617 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 03:19:22,617 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 68 [2019-10-15 03:19:22,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:19:22,621 INFO L225 Difference]: With dead ends: 500 [2019-10-15 03:19:22,622 INFO L226 Difference]: Without dead ends: 336 [2019-10-15 03:19:22,623 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 03:19:22,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2019-10-15 03:19:22,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 326. [2019-10-15 03:19:22,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 326 states. [2019-10-15 03:19:22,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 359 transitions. [2019-10-15 03:19:22,656 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 359 transitions. Word has length 68 [2019-10-15 03:19:22,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:19:22,657 INFO L462 AbstractCegarLoop]: Abstraction has 326 states and 359 transitions. [2019-10-15 03:19:22,657 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 03:19:22,657 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 359 transitions. [2019-10-15 03:19:22,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2019-10-15 03:19:22,659 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:19:22,659 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, 1] [2019-10-15 03:19:22,659 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:19:22,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:19:22,659 INFO L82 PathProgramCache]: Analyzing trace with hash 1063035098, now seen corresponding path program 1 times [2019-10-15 03:19:22,660 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:19:22,660 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130305229] [2019-10-15 03:19:22,660 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:19:22,660 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:19:22,660 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:19:22,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:19:22,794 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 03:19:22,794 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130305229] [2019-10-15 03:19:22,795 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:19:22,795 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:19:22,795 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795346351] [2019-10-15 03:19:22,796 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:19:22,796 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:19:22,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:19:22,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:19:22,797 INFO L87 Difference]: Start difference. First operand 326 states and 359 transitions. Second operand 7 states. [2019-10-15 03:19:23,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:19:23,374 INFO L93 Difference]: Finished difference Result 356 states and 404 transitions. [2019-10-15 03:19:23,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 03:19:23,374 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 71 [2019-10-15 03:19:23,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:19:23,377 INFO L225 Difference]: With dead ends: 356 [2019-10-15 03:19:23,378 INFO L226 Difference]: Without dead ends: 353 [2019-10-15 03:19:23,378 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-15 03:19:23,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2019-10-15 03:19:23,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 326. [2019-10-15 03:19:23,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 326 states. [2019-10-15 03:19:23,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 358 transitions. [2019-10-15 03:19:23,407 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 358 transitions. Word has length 71 [2019-10-15 03:19:23,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:19:23,407 INFO L462 AbstractCegarLoop]: Abstraction has 326 states and 358 transitions. [2019-10-15 03:19:23,407 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:19:23,408 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 358 transitions. [2019-10-15 03:19:23,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-10-15 03:19:23,409 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:19:23,409 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] [2019-10-15 03:19:23,410 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:19:23,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:19:23,410 INFO L82 PathProgramCache]: Analyzing trace with hash -1507615519, now seen corresponding path program 1 times [2019-10-15 03:19:23,410 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:19:23,411 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242586409] [2019-10-15 03:19:23,411 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:19:23,411 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:19:23,411 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:19:23,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:19:23,590 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 03:19:23,591 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242586409] [2019-10-15 03:19:23,591 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1384752730] [2019-10-15 03:19:23,591 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 03:19:23,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:19:23,795 INFO L256 TraceCheckSpWp]: Trace formula consists of 750 conjuncts, 25 conjunts are in the unsatisfiable core [2019-10-15 03:19:23,806 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:19:23,905 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 03:19:23,906 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:19:24,559 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 03:19:24,560 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 03:19:24,560 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [14, 11] total 23 [2019-10-15 03:19:24,561 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811700639] [2019-10-15 03:19:24,561 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 03:19:24,561 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:19:24,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 03:19:24,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=431, Unknown=0, NotChecked=0, Total=506 [2019-10-15 03:19:24,562 INFO L87 Difference]: Start difference. First operand 326 states and 358 transitions. Second operand 11 states. [2019-10-15 03:19:25,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:19:25,234 INFO L93 Difference]: Finished difference Result 749 states and 855 transitions. [2019-10-15 03:19:25,235 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-15 03:19:25,235 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 84 [2019-10-15 03:19:25,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:19:25,238 INFO L225 Difference]: With dead ends: 749 [2019-10-15 03:19:25,239 INFO L226 Difference]: Without dead ends: 445 [2019-10-15 03:19:25,240 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 165 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 03:19:25,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2019-10-15 03:19:25,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 437. [2019-10-15 03:19:25,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2019-10-15 03:19:25,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 483 transitions. [2019-10-15 03:19:25,283 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 483 transitions. Word has length 84 [2019-10-15 03:19:25,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:19:25,291 INFO L462 AbstractCegarLoop]: Abstraction has 437 states and 483 transitions. [2019-10-15 03:19:25,291 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 03:19:25,291 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 483 transitions. [2019-10-15 03:19:25,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2019-10-15 03:19:25,294 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:19:25,295 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:19:25,499 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:19:25,500 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:19:25,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:19:25,501 INFO L82 PathProgramCache]: Analyzing trace with hash -1609686826, now seen corresponding path program 1 times [2019-10-15 03:19:25,501 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:19:25,501 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740874243] [2019-10-15 03:19:25,502 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:19:25,502 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:19:25,502 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:19:25,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:19:25,796 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-15 03:19:25,797 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740874243] [2019-10-15 03:19:25,797 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [276531870] [2019-10-15 03:19:25,797 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 03:19:26,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:19:26,004 INFO L256 TraceCheckSpWp]: Trace formula consists of 868 conjuncts, 33 conjunts are in the unsatisfiable core [2019-10-15 03:19:26,015 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:19:26,170 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:19:26,253 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:19:26,320 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:19:26,321 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:19:27,113 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:19:27,711 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:19:27,712 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:19:27,712 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:19:27,737 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:19:28,023 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-15 03:19:28,024 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 03:19:28,024 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [14, 13] total 35 [2019-10-15 03:19:28,024 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036642717] [2019-10-15 03:19:28,025 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-15 03:19:28,025 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:19:28,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-15 03:19:28,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=1039, Unknown=0, NotChecked=0, Total=1190 [2019-10-15 03:19:28,027 INFO L87 Difference]: Start difference. First operand 437 states and 483 transitions. Second operand 14 states. [2019-10-15 03:19:30,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:19:30,571 INFO L93 Difference]: Finished difference Result 1131 states and 1322 transitions. [2019-10-15 03:19:30,572 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-10-15 03:19:30,573 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 130 [2019-10-15 03:19:30,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:19:30,580 INFO L225 Difference]: With dead ends: 1131 [2019-10-15 03:19:30,580 INFO L226 Difference]: Without dead ends: 716 [2019-10-15 03:19:30,584 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 237 SyntacticMatches, 8 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 818 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=386, Invalid=2476, Unknown=0, NotChecked=0, Total=2862 [2019-10-15 03:19:30,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2019-10-15 03:19:30,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 683. [2019-10-15 03:19:30,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 683 states. [2019-10-15 03:19:30,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 778 transitions. [2019-10-15 03:19:30,649 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 778 transitions. Word has length 130 [2019-10-15 03:19:30,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:19:30,650 INFO L462 AbstractCegarLoop]: Abstraction has 683 states and 778 transitions. [2019-10-15 03:19:30,650 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-15 03:19:30,650 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 778 transitions. [2019-10-15 03:19:30,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2019-10-15 03:19:30,657 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:19:30,657 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, 1, 1, 1, 1, 1] [2019-10-15 03:19:30,862 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:19:30,863 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:19:30,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:19:30,863 INFO L82 PathProgramCache]: Analyzing trace with hash -1315888121, now seen corresponding path program 1 times [2019-10-15 03:19:30,864 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:19:30,864 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556161227] [2019-10-15 03:19:30,864 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:19:30,864 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:19:30,864 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:19:30,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:19:31,211 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-15 03:19:31,212 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556161227] [2019-10-15 03:19:31,212 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [323121008] [2019-10-15 03:19:31,212 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 03:19:31,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:19:31,424 INFO L256 TraceCheckSpWp]: Trace formula consists of 874 conjuncts, 56 conjunts are in the unsatisfiable core [2019-10-15 03:19:31,431 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:19:31,525 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:19:31,561 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:19:31,764 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:19:31,764 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:19:32,118 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:19:32,160 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:19:32,162 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:19:32,240 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:19:32,241 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:19:32,376 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:19:32,393 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:19:32,491 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:19:32,491 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:19:32,544 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:19:32,690 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-15 03:19:32,691 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [567082977] [2019-10-15 03:19:32,718 INFO L162 IcfgInterpreter]: Started Sifa with 106 locations of interest [2019-10-15 03:19:32,719 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:19:32,725 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:19:32,734 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:19:32,734 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 03:19:42,856 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-15 03:19:44,638 WARN L191 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-15 03:19:44,759 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-15 03:19:44,939 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-15 03:19:45,130 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-15 03:19:45,411 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:19:45,625 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:19:45,812 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:19:46,071 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:19:46,496 WARN L191 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 542 DAG size of output: 540 [2019-10-15 03:19:46,670 WARN L191 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:19:46,841 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:19:46,958 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:19:47,074 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:19:47,191 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:19:47,198 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 184 for LOIs [2019-10-15 03:19:47,422 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 509 [2019-10-15 03:19:47,424 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 544 for LOIs [2019-10-15 03:19:47,557 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:19:47,662 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:19:47,790 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:19:47,914 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:19:48,041 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:19:48,158 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:19:48,328 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:19:48,432 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:19:48,550 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:19:48,824 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 544 [2019-10-15 03:19:48,926 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:19:49,076 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:19:49,184 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:19:49,398 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:19:49,512 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:19:49,728 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:19:49,839 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:19:50,054 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:19:50,199 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:19:50,414 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:19:50,726 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:19:50,940 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:19:51,059 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:19:51,367 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:19:51,581 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:19:51,711 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:19:51,832 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:19:51,941 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:19:52,057 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:19:52,196 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:19:52,302 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:19:52,421 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:19:52,633 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-15 03:19:52,740 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:19:52,859 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:19:52,965 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:19:53,073 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:19:53,191 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:19:53,332 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:19:53,442 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:19:53,590 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:19:53,800 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-15 03:19:53,910 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-15 03:19:54,033 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:19:54,227 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-15 03:19:54,337 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-15 03:19:54,456 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:19:54,575 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-15 03:19:54,683 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-15 03:19:54,876 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:19:54,985 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:19:55,095 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:19:55,220 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-15 03:19:55,350 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:19:55,459 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:19:55,610 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-15 03:19:55,813 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 564 DAG size of output: 560 [2019-10-15 03:19:55,922 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:19:56,051 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-15 03:19:56,162 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:19:56,269 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:19:56,389 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-15 03:19:56,833 WARN L191 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-15 03:19:56,942 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:19:57,067 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556