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_spec4_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:16:56,834 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:16:56,837 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:16:56,855 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:16:56,855 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:16:56,857 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:16:56,860 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:16:56,869 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:16:56,874 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:16:56,877 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:16:56,878 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:16:56,880 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:16:56,880 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:16:56,882 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:16:56,884 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:16:56,886 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:16:56,887 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:16:56,887 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:16:56,889 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:16:56,891 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:16:56,892 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:16:56,894 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:16:56,897 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:16:56,898 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:16:56,900 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:16:56,900 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:16:56,901 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:16:56,902 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:16:56,904 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:16:56,906 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:16:56,906 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:16:56,908 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:16:56,908 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:16:56,909 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:16:56,911 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:16:56,911 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:16:56,912 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:16:56,912 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:16:56,912 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:16:56,913 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:16:56,914 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:16:56,915 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 23:16:56,943 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:16:56,943 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:16:56,944 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:16:56,945 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:16:56,945 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:16:56,945 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:16:56,945 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:16:56,946 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:16:56,946 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:16:56,946 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:16:56,946 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:16:56,946 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:16:56,946 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:16:56,947 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:16:56,947 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:16:56,947 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:16:56,947 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:16:56,947 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:16:56,948 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:16:56,948 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:16:56,948 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:16:56,948 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:16:56,948 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:16:56,949 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:16:56,949 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:16:56,949 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:16:56,949 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:16:56,949 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:16:56,950 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 23:16:57,236 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:16:57,252 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:16:57,257 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:16:57,259 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:16:57,260 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:16:57,260 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product55.cil.c [2019-10-13 23:16:57,341 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f6469164/cf4f43c170594fa59ad8b4b5316c853d/FLAG1f8d25c81 [2019-10-13 23:16:57,900 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:16:57,901 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product55.cil.c [2019-10-13 23:16:57,916 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f6469164/cf4f43c170594fa59ad8b4b5316c853d/FLAG1f8d25c81 [2019-10-13 23:16:58,192 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f6469164/cf4f43c170594fa59ad8b4b5316c853d [2019-10-13 23:16:58,201 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:16:58,203 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:16:58,204 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:16:58,204 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:16:58,208 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:16:58,208 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:16:58" (1/1) ... [2019-10-13 23:16:58,211 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5370fc2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:58, skipping insertion in model container [2019-10-13 23:16:58,211 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:16:58" (1/1) ... [2019-10-13 23:16:58,217 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:16:58,276 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:16:58,751 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:16:58,778 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:16:58,893 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:16:58,940 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:16:58,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:58 WrapperNode [2019-10-13 23:16:58,940 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:16:58,941 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:16:58,941 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:16:58,942 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:16:58,956 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:58" (1/1) ... [2019-10-13 23:16:58,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:58" (1/1) ... [2019-10-13 23:16:58,975 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:58" (1/1) ... [2019-10-13 23:16:58,975 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:58" (1/1) ... [2019-10-13 23:16:59,003 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:58" (1/1) ... [2019-10-13 23:16:59,014 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:58" (1/1) ... [2019-10-13 23:16:59,019 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:58" (1/1) ... [2019-10-13 23:16:59,027 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:16:59,028 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:16:59,028 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:16:59,028 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:16:59,029 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:58" (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 23:16:59,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:16:59,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:16:59,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:16:59,109 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:16:59,109 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 23:16:59,110 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-13 23:16:59,110 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 23:16:59,111 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2019-10-13 23:16:59,111 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 23:16:59,112 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 23:16:59,112 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 23:16:59,113 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 23:16:59,113 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 23:16:59,113 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 23:16:59,113 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 23:16:59,114 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-13 23:16:59,116 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-13 23:16:59,116 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-10-13 23:16:59,117 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:16:59,117 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:16:59,117 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:16:59,117 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:16:59,118 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:16:59,118 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 23:16:59,118 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 23:16:59,118 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:16:59,118 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 23:16:59,118 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:16:59,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:16:59,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:16:59,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:16:59,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:16:59,120 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:16:59,120 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:16:59,120 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 23:16:59,120 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 23:16:59,120 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 23:16:59,120 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 23:16:59,120 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 23:16:59,121 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 23:16:59,121 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 23:16:59,121 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-13 23:16:59,121 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:16:59,121 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:16:59,121 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:16:59,122 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 23:16:59,122 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 23:16:59,122 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-13 23:16:59,122 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 23:16:59,122 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 23:16:59,122 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:16:59,122 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 23:16:59,123 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 23:16:59,123 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 23:16:59,123 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 23:16:59,123 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-13 23:16:59,123 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 23:16:59,123 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 23:16:59,124 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 23:16:59,124 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 23:16:59,124 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-10-13 23:16:59,125 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 23:16:59,125 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-13 23:16:59,125 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 23:16:59,125 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 23:16:59,125 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-13 23:16:59,125 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2019-10-13 23:16:59,125 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 23:16:59,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:16:59,126 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:16:59,126 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 23:16:59,126 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:16:59,126 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:16:59,127 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:16:59,127 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:16:59,127 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 23:16:59,128 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:16:59,128 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 23:16:59,128 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:16:59,129 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:16:59,129 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:16:59,130 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:16:59,130 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:16:59,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:16:59,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:16:59,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:16:59,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:16:59,131 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:16:59,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:16:59,131 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:16:59,132 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:16:59,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:16:59,132 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:16:59,132 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:16:59,132 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:16:59,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:16:59,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:16:59,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:17:00,727 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:17:00,727 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 23:17:00,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:17:00 BoogieIcfgContainer [2019-10-13 23:17:00,729 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:17:00,730 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:17:00,730 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:17:00,733 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:17:00,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:16:58" (1/3) ... [2019-10-13 23:17:00,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a466d09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:17:00, skipping insertion in model container [2019-10-13 23:17:00,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:58" (2/3) ... [2019-10-13 23:17:00,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a466d09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:17:00, skipping insertion in model container [2019-10-13 23:17:00,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:17:00" (3/3) ... [2019-10-13 23:17:00,737 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product55.cil.c [2019-10-13 23:17:00,747 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:17:00,756 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:17:00,768 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:17:00,800 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:17:00,800 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:17:00,800 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:17:00,801 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:17:00,801 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:17:00,801 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:17:00,801 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:17:00,802 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:17:00,825 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states. [2019-10-13 23:17:00,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-10-13 23:17:00,834 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:00,835 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] [2019-10-13 23:17:00,838 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:00,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:00,844 INFO L82 PathProgramCache]: Analyzing trace with hash -1667852070, now seen corresponding path program 1 times [2019-10-13 23:17:00,853 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:00,854 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646511846] [2019-10-13 23:17:00,854 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:00,854 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:00,855 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:01,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:01,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:17:01,227 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646511846] [2019-10-13 23:17:01,228 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:17:01,229 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:17:01,229 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283236392] [2019-10-13 23:17:01,234 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:17:01,234 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:01,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:17:01,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:17:01,252 INFO L87 Difference]: Start difference. First operand 162 states. Second operand 2 states. [2019-10-13 23:17:01,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:01,300 INFO L93 Difference]: Finished difference Result 257 states and 314 transitions. [2019-10-13 23:17:01,305 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:17:01,306 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 42 [2019-10-13 23:17:01,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:01,329 INFO L225 Difference]: With dead ends: 257 [2019-10-13 23:17:01,329 INFO L226 Difference]: Without dead ends: 129 [2019-10-13 23:17:01,348 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 23:17:01,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2019-10-13 23:17:01,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2019-10-13 23:17:01,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2019-10-13 23:17:01,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 151 transitions. [2019-10-13 23:17:01,468 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 151 transitions. Word has length 42 [2019-10-13 23:17:01,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:01,469 INFO L462 AbstractCegarLoop]: Abstraction has 129 states and 151 transitions. [2019-10-13 23:17:01,469 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:17:01,470 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 151 transitions. [2019-10-13 23:17:01,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-10-13 23:17:01,481 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:01,481 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] [2019-10-13 23:17:01,482 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:01,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:01,485 INFO L82 PathProgramCache]: Analyzing trace with hash -934226068, now seen corresponding path program 1 times [2019-10-13 23:17:01,485 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:01,486 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610836593] [2019-10-13 23:17:01,486 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:01,487 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:01,487 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:01,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:01,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:17:01,645 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610836593] [2019-10-13 23:17:01,645 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:17:01,645 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:17:01,646 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552389947] [2019-10-13 23:17:01,648 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:17:01,649 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:01,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:17:01,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:17:01,650 INFO L87 Difference]: Start difference. First operand 129 states and 151 transitions. Second operand 3 states. [2019-10-13 23:17:01,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:01,695 INFO L93 Difference]: Finished difference Result 208 states and 242 transitions. [2019-10-13 23:17:01,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:17:01,700 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2019-10-13 23:17:01,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:01,704 INFO L225 Difference]: With dead ends: 208 [2019-10-13 23:17:01,704 INFO L226 Difference]: Without dead ends: 121 [2019-10-13 23:17:01,710 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 23:17:01,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2019-10-13 23:17:01,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2019-10-13 23:17:01,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2019-10-13 23:17:01,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 140 transitions. [2019-10-13 23:17:01,731 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 140 transitions. Word has length 43 [2019-10-13 23:17:01,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:01,732 INFO L462 AbstractCegarLoop]: Abstraction has 121 states and 140 transitions. [2019-10-13 23:17:01,732 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:17:01,732 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 140 transitions. [2019-10-13 23:17:01,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-13 23:17:01,739 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:01,739 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] [2019-10-13 23:17:01,740 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:01,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:01,741 INFO L82 PathProgramCache]: Analyzing trace with hash -1714663435, now seen corresponding path program 1 times [2019-10-13 23:17:01,741 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:01,741 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104747991] [2019-10-13 23:17:01,742 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:01,742 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:01,742 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:01,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:01,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:17:01,937 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104747991] [2019-10-13 23:17:01,937 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:17:01,937 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:17:01,937 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285702919] [2019-10-13 23:17:01,938 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:17:01,938 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:01,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:17:01,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:17:01,939 INFO L87 Difference]: Start difference. First operand 121 states and 140 transitions. Second operand 7 states. [2019-10-13 23:17:02,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:02,489 INFO L93 Difference]: Finished difference Result 363 states and 433 transitions. [2019-10-13 23:17:02,490 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 23:17:02,490 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 46 [2019-10-13 23:17:02,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:02,500 INFO L225 Difference]: With dead ends: 363 [2019-10-13 23:17:02,500 INFO L226 Difference]: Without dead ends: 264 [2019-10-13 23:17:02,504 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-13 23:17:02,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2019-10-13 23:17:02,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 256. [2019-10-13 23:17:02,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2019-10-13 23:17:02,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 305 transitions. [2019-10-13 23:17:02,561 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 305 transitions. Word has length 46 [2019-10-13 23:17:02,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:02,562 INFO L462 AbstractCegarLoop]: Abstraction has 256 states and 305 transitions. [2019-10-13 23:17:02,562 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:17:02,562 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 305 transitions. [2019-10-13 23:17:02,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-13 23:17:02,564 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:02,565 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] [2019-10-13 23:17:02,565 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:02,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:02,565 INFO L82 PathProgramCache]: Analyzing trace with hash 1924130010, now seen corresponding path program 1 times [2019-10-13 23:17:02,566 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:02,566 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776152131] [2019-10-13 23:17:02,566 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:02,566 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:02,567 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:02,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:02,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:17:02,703 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776152131] [2019-10-13 23:17:02,704 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:17:02,704 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 23:17:02,704 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717103124] [2019-10-13 23:17:02,705 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 23:17:02,705 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:02,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 23:17:02,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-10-13 23:17:02,706 INFO L87 Difference]: Start difference. First operand 256 states and 305 transitions. Second operand 10 states. [2019-10-13 23:17:03,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:03,428 INFO L93 Difference]: Finished difference Result 919 states and 1142 transitions. [2019-10-13 23:17:03,428 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-13 23:17:03,429 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 51 [2019-10-13 23:17:03,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:03,435 INFO L225 Difference]: With dead ends: 919 [2019-10-13 23:17:03,435 INFO L226 Difference]: Without dead ends: 685 [2019-10-13 23:17:03,437 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2019-10-13 23:17:03,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2019-10-13 23:17:03,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 661. [2019-10-13 23:17:03,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 661 states. [2019-10-13 23:17:03,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 806 transitions. [2019-10-13 23:17:03,508 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 806 transitions. Word has length 51 [2019-10-13 23:17:03,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:03,509 INFO L462 AbstractCegarLoop]: Abstraction has 661 states and 806 transitions. [2019-10-13 23:17:03,509 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 23:17:03,509 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 806 transitions. [2019-10-13 23:17:03,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-10-13 23:17:03,515 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:03,516 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] [2019-10-13 23:17:03,516 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:03,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:03,516 INFO L82 PathProgramCache]: Analyzing trace with hash 26521400, now seen corresponding path program 1 times [2019-10-13 23:17:03,517 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:03,517 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964596261] [2019-10-13 23:17:03,517 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:03,518 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:03,518 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:03,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:03,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:17:03,638 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964596261] [2019-10-13 23:17:03,638 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:17:03,638 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 23:17:03,638 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624154996] [2019-10-13 23:17:03,639 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 23:17:03,639 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:03,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 23:17:03,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 23:17:03,640 INFO L87 Difference]: Start difference. First operand 661 states and 806 transitions. Second operand 4 states. [2019-10-13 23:17:04,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:04,051 INFO L93 Difference]: Finished difference Result 1576 states and 2092 transitions. [2019-10-13 23:17:04,051 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 23:17:04,051 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2019-10-13 23:17:04,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:04,058 INFO L225 Difference]: With dead ends: 1576 [2019-10-13 23:17:04,059 INFO L226 Difference]: Without dead ends: 937 [2019-10-13 23:17:04,061 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-13 23:17:04,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2019-10-13 23:17:04,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 807. [2019-10-13 23:17:04,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 807 states. [2019-10-13 23:17:04,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 964 transitions. [2019-10-13 23:17:04,125 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 964 transitions. Word has length 57 [2019-10-13 23:17:04,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:04,126 INFO L462 AbstractCegarLoop]: Abstraction has 807 states and 964 transitions. [2019-10-13 23:17:04,126 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 23:17:04,126 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 964 transitions. [2019-10-13 23:17:04,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-10-13 23:17:04,128 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:04,129 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 23:17:04,129 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:04,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:04,129 INFO L82 PathProgramCache]: Analyzing trace with hash 154264185, now seen corresponding path program 1 times [2019-10-13 23:17:04,130 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:04,130 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035536450] [2019-10-13 23:17:04,130 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:04,130 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:04,130 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:04,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:04,232 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-13 23:17:04,233 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035536450] [2019-10-13 23:17:04,233 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1244545605] [2019-10-13 23:17:04,233 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 23:17:04,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:04,420 INFO L256 TraceCheckSpWp]: Trace formula consists of 738 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-13 23:17:04,429 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:17:04,471 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-13 23:17:04,472 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:17:04,579 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:17:04,579 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-13 23:17:04,580 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [7] total 9 [2019-10-13 23:17:04,580 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142287545] [2019-10-13 23:17:04,581 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:17:04,581 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:04,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:17:04,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-10-13 23:17:04,582 INFO L87 Difference]: Start difference. First operand 807 states and 964 transitions. Second operand 7 states. [2019-10-13 23:17:04,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:04,875 INFO L93 Difference]: Finished difference Result 820 states and 980 transitions. [2019-10-13 23:17:04,875 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 23:17:04,875 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 78 [2019-10-13 23:17:04,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:04,881 INFO L225 Difference]: With dead ends: 820 [2019-10-13 23:17:04,881 INFO L226 Difference]: Without dead ends: 817 [2019-10-13 23:17:04,882 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2019-10-13 23:17:04,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 817 states. [2019-10-13 23:17:04,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 817 to 807. [2019-10-13 23:17:04,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 807 states. [2019-10-13 23:17:04,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 961 transitions. [2019-10-13 23:17:04,935 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 961 transitions. Word has length 78 [2019-10-13 23:17:04,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:04,936 INFO L462 AbstractCegarLoop]: Abstraction has 807 states and 961 transitions. [2019-10-13 23:17:04,936 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:17:04,936 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 961 transitions. [2019-10-13 23:17:04,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-10-13 23:17:04,940 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:04,940 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-13 23:17:05,144 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:17:05,145 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:05,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:05,146 INFO L82 PathProgramCache]: Analyzing trace with hash 1634049548, now seen corresponding path program 1 times [2019-10-13 23:17:05,146 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:05,147 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185129656] [2019-10-13 23:17:05,147 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:05,147 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:05,147 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:05,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:05,219 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-10-13 23:17:05,220 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185129656] [2019-10-13 23:17:05,220 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:17:05,220 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 23:17:05,220 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400171425] [2019-10-13 23:17:05,221 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 23:17:05,221 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:05,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 23:17:05,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 23:17:05,223 INFO L87 Difference]: Start difference. First operand 807 states and 961 transitions. Second operand 4 states. [2019-10-13 23:17:05,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:05,422 INFO L93 Difference]: Finished difference Result 933 states and 1114 transitions. [2019-10-13 23:17:05,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 23:17:05,422 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 132 [2019-10-13 23:17:05,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:05,425 INFO L225 Difference]: With dead ends: 933 [2019-10-13 23:17:05,425 INFO L226 Difference]: Without dead ends: 356 [2019-10-13 23:17:05,427 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 23:17:05,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2019-10-13 23:17:05,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2019-10-13 23:17:05,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2019-10-13 23:17:05,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 410 transitions. [2019-10-13 23:17:05,449 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 410 transitions. Word has length 132 [2019-10-13 23:17:05,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:05,450 INFO L462 AbstractCegarLoop]: Abstraction has 356 states and 410 transitions. [2019-10-13 23:17:05,450 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 23:17:05,450 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 410 transitions. [2019-10-13 23:17:05,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2019-10-13 23:17:05,452 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:05,453 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-13 23:17:05,453 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:05,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:05,454 INFO L82 PathProgramCache]: Analyzing trace with hash -1852288223, now seen corresponding path program 1 times [2019-10-13 23:17:05,454 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:05,454 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762612408] [2019-10-13 23:17:05,454 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:05,454 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:05,455 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:05,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:05,609 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-13 23:17:05,609 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762612408] [2019-10-13 23:17:05,609 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1185879415] [2019-10-13 23:17:05,610 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 [2019-10-13 23:17:05,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:05,854 INFO L256 TraceCheckSpWp]: Trace formula consists of 876 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-13 23:17:05,860 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:17:05,943 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 26 proven. 7 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-13 23:17:05,944 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:17:06,126 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:06,170 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:06,373 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-13 23:17:06,373 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [975115184] [2019-10-13 23:17:06,412 INFO L162 IcfgInterpreter]: Started Sifa with 94 locations of interest [2019-10-13 23:17:06,412 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:17:06,423 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:17:06,443 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:17:06,444 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 23:17:16,037 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-13 23:17:17,814 WARN L191 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-13 23:17:17,951 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-13 23:17:18,138 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-13 23:17:18,343 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-13 23:17:18,699 WARN L191 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:18,927 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:19,115 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:19,391 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:19,874 WARN L191 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 542 DAG size of output: 540 [2019-10-13 23:17:20,098 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:20,273 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:20,397 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:20,514 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:20,652 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:20,662 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 184 for LOIs [2019-10-13 23:17:20,947 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 509 [2019-10-13 23:17:20,949 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 544 for LOIs [2019-10-13 23:17:21,117 WARN L191 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:17:21,280 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:17:21,417 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:21,539 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:17:21,656 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:17:21,824 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:21,947 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:17:22,058 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:17:22,187 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:22,482 WARN L191 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 544 [2019-10-13 23:17:22,600 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:17:22,813 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:22,963 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:17:23,208 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:23,317 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:17:23,421 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:17:23,541 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:23,654 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:17:23,908 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:24,010 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:17:24,233 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:24,336 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:17:24,574 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:24,679 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:17:24,898 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:25,000 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:17:25,223 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:25,358 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:17:25,462 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:17:25,584 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:25,786 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:17:25,907 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:26,077 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:26,202 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:26,362 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:26,570 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:17:26,695 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:26,826 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:26,936 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:27,053 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:27,203 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:27,336 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:27,451 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:27,590 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:27,830 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-13 23:17:27,943 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:17:28,087 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:28,305 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-13 23:17:28,419 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:17:28,541 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:28,658 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-13 23:17:28,775 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-13 23:17:28,908 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-13 23:17:29,035 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:17:29,165 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:17:29,296 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:17:29,442 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:17:29,560 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:17:29,688 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:17:29,810 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:17:29,926 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:17:30,080 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:17:30,201 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:17:30,319 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:17:30,445 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:17:30,671 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:17:30,784 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:30,907 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:31,137 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:17:31,263 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:31,399 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:31,513 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:31,625 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:31,745 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:31,887 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:32,002 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:32,174 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:32,302 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:32,423 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:32,553 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:32,669 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:32,803 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:32,925 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:33,138 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 567 DAG size of output: 565 [2019-10-13 23:17:33,254 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-13 23:17:33,385 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-13 23:17:33,613 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 569 DAG size of output: 567 [2019-10-13 23:17:33,731 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:17:33,860 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:17:34,102 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:17:34,215 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:34,344 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:34,564 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:17:34,678 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:34,803 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:34,915 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:35,027 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:35,152 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:35,373 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:17:35,487 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:35,611 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:35,843 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:17:35,957 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:36,080 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:36,193 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:36,305 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:36,432 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:36,569 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:36,691 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:36,822 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:36,991 WARN L191 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:37,107 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:37,233 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:37,349 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:37,462 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:37,584 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:37,796 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 567 DAG size of output: 565 [2019-10-13 23:17:37,912 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-13 23:17:38,039 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-13 23:17:38,280 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:17:38,391 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:38,515 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 556