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_product63.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:17:36,151 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:17:36,153 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:17:36,164 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:17:36,164 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:17:36,165 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:17:36,167 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:17:36,169 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:17:36,170 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:17:36,171 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:17:36,177 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:17:36,179 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:17:36,179 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:17:36,180 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:17:36,181 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:17:36,182 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:17:36,183 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:17:36,183 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:17:36,185 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:17:36,187 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:17:36,189 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:17:36,190 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:17:36,191 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:17:36,192 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:17:36,196 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:17:36,196 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:17:36,197 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:17:36,199 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:17:36,200 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:17:36,201 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:17:36,201 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:17:36,202 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:17:36,202 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:17:36,203 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:17:36,204 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:17:36,204 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:17:36,205 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:17:36,205 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:17:36,205 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:17:36,206 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:17:36,207 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:17:36,208 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 23:17:36,222 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:17:36,222 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:17:36,223 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:17:36,223 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:17:36,223 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:17:36,224 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:17:36,224 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:17:36,224 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:17:36,224 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:17:36,224 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:17:36,225 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:17:36,225 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:17:36,225 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:17:36,225 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:17:36,225 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:17:36,226 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:17:36,226 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:17:36,226 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:17:36,226 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:17:36,226 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:17:36,227 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:17:36,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:17:36,227 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:17:36,227 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:17:36,227 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:17:36,228 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:17:36,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:17:36,228 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:17:36,228 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 23:17:36,504 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:17:36,517 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:17:36,520 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:17:36,522 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:17:36,522 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:17:36,523 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product63.cil.c [2019-10-13 23:17:36,583 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/955654da8/6f77cd5ac48848eaa216c2d7ef56b903/FLAGe0a16e213 [2019-10-13 23:17:37,117 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:17:37,117 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product63.cil.c [2019-10-13 23:17:37,142 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/955654da8/6f77cd5ac48848eaa216c2d7ef56b903/FLAGe0a16e213 [2019-10-13 23:17:37,424 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/955654da8/6f77cd5ac48848eaa216c2d7ef56b903 [2019-10-13 23:17:37,436 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:17:37,438 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:17:37,440 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:17:37,440 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:17:37,443 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:17:37,444 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:17:37" (1/1) ... [2019-10-13 23:17:37,447 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3863fac2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:37, skipping insertion in model container [2019-10-13 23:17:37,447 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:17:37" (1/1) ... [2019-10-13 23:17:37,455 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:17:37,513 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:17:37,906 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:17:37,919 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:17:38,021 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:17:38,063 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:17:38,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:38 WrapperNode [2019-10-13 23:17:38,063 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:17:38,064 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:17:38,064 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:17:38,064 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:17:38,078 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:38" (1/1) ... [2019-10-13 23:17:38,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:38" (1/1) ... [2019-10-13 23:17:38,112 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:38" (1/1) ... [2019-10-13 23:17:38,112 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:38" (1/1) ... [2019-10-13 23:17:38,139 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:38" (1/1) ... [2019-10-13 23:17:38,150 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:38" (1/1) ... [2019-10-13 23:17:38,155 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:38" (1/1) ... [2019-10-13 23:17:38,163 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:17:38,163 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:17:38,164 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:17:38,164 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:17:38,165 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:38" (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 23:17:38,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:17:38,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:17:38,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:17:38,242 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:17:38,243 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:17:38,244 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:17:38,244 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:17:38,245 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:17:38,245 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:17:38,245 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 23:17:38,245 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 23:17:38,246 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:17:38,246 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 23:17:38,246 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:17:38,247 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:17:38,247 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:17:38,249 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:17:38,249 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:17:38,249 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-10-13 23:17:38,249 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 23:17:38,249 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 23:17:38,250 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 23:17:38,250 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 23:17:38,250 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 23:17:38,250 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 23:17:38,250 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 23:17:38,251 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-13 23:17:38,251 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:17:38,251 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 23:17:38,251 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-13 23:17:38,251 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 23:17:38,251 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-10-13 23:17:38,252 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 23:17:38,252 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 23:17:38,252 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 23:17:38,252 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 23:17:38,253 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 23:17:38,253 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 23:17:38,253 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 23:17:38,253 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 23:17:38,253 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-13 23:17:38,253 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-13 23:17:38,254 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:17:38,254 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:17:38,254 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:17:38,254 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:17:38,254 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:17:38,254 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:17:38,255 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:17:38,255 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:17:38,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:17:38,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:17:38,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:17:38,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:17:38,255 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:17:38,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:17:38,256 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:17:38,256 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:17:38,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:17:38,256 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:17:38,257 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:17:38,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:17:38,257 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:17:38,257 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 23:17:38,257 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 23:17:38,258 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 23:17:38,258 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 23:17:38,258 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 23:17:38,258 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 23:17:38,258 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:17:38,258 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:17:38,258 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 23:17:38,259 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:17:38,260 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:17:38,260 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:17:38,260 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:17:38,261 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:17:38,261 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:17:38,261 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 23:17:38,261 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 23:17:38,262 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-10-13 23:17:38,262 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 23:17:38,262 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 23:17:38,262 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 23:17:38,263 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 23:17:38,263 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-13 23:17:38,263 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 23:17:38,264 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 23:17:38,264 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-13 23:17:38,264 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 23:17:38,264 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-13 23:17:38,264 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 23:17:38,264 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 23:17:38,265 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-13 23:17:38,265 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-10-13 23:17:38,265 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 23:17:38,265 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 23:17:38,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:17:38,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:17:38,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:17:40,001 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:17:40,001 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 23:17:40,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:17:40 BoogieIcfgContainer [2019-10-13 23:17:40,003 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:17:40,004 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:17:40,004 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:17:40,008 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:17:40,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:17:37" (1/3) ... [2019-10-13 23:17:40,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bf4f5d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:17:40, skipping insertion in model container [2019-10-13 23:17:40,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:38" (2/3) ... [2019-10-13 23:17:40,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bf4f5d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:17:40, skipping insertion in model container [2019-10-13 23:17:40,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:17:40" (3/3) ... [2019-10-13 23:17:40,012 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product63.cil.c [2019-10-13 23:17:40,024 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:17:40,034 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:17:40,047 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:17:40,075 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:17:40,076 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:17:40,076 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:17:40,076 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:17:40,077 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:17:40,077 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:17:40,078 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:17:40,078 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:17:40,108 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states. [2019-10-13 23:17:40,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-10-13 23:17:40,124 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:40,125 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 23:17:40,130 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:40,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:40,136 INFO L82 PathProgramCache]: Analyzing trace with hash -627710674, now seen corresponding path program 1 times [2019-10-13 23:17:40,145 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:40,146 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241025437] [2019-10-13 23:17:40,146 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:40,146 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:40,147 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:40,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:40,498 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 23:17:40,499 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241025437] [2019-10-13 23:17:40,500 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:17:40,501 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:17:40,501 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360193854] [2019-10-13 23:17:40,507 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:17:40,508 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:40,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:17:40,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:17:40,520 INFO L87 Difference]: Start difference. First operand 169 states. Second operand 2 states. [2019-10-13 23:17:40,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:40,578 INFO L93 Difference]: Finished difference Result 271 states and 332 transitions. [2019-10-13 23:17:40,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:17:40,579 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 42 [2019-10-13 23:17:40,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:40,593 INFO L225 Difference]: With dead ends: 271 [2019-10-13 23:17:40,593 INFO L226 Difference]: Without dead ends: 136 [2019-10-13 23:17:40,598 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 23:17:40,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2019-10-13 23:17:40,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2019-10-13 23:17:40,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2019-10-13 23:17:40,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 160 transitions. [2019-10-13 23:17:40,658 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 160 transitions. Word has length 42 [2019-10-13 23:17:40,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:40,659 INFO L462 AbstractCegarLoop]: Abstraction has 136 states and 160 transitions. [2019-10-13 23:17:40,659 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:17:40,660 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 160 transitions. [2019-10-13 23:17:40,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-10-13 23:17:40,664 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:40,664 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 23:17:40,664 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:40,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:40,665 INFO L82 PathProgramCache]: Analyzing trace with hash 577917647, now seen corresponding path program 1 times [2019-10-13 23:17:40,665 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:40,665 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610528227] [2019-10-13 23:17:40,666 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:40,666 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:40,666 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:40,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:40,804 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 23:17:40,805 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610528227] [2019-10-13 23:17:40,805 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:17:40,805 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:17:40,805 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437726021] [2019-10-13 23:17:40,808 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:17:40,808 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:40,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:17:40,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:17:40,809 INFO L87 Difference]: Start difference. First operand 136 states and 160 transitions. Second operand 3 states. [2019-10-13 23:17:40,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:40,857 INFO L93 Difference]: Finished difference Result 222 states and 260 transitions. [2019-10-13 23:17:40,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:17:40,858 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2019-10-13 23:17:40,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:40,863 INFO L225 Difference]: With dead ends: 222 [2019-10-13 23:17:40,864 INFO L226 Difference]: Without dead ends: 128 [2019-10-13 23:17:40,867 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 23:17:40,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2019-10-13 23:17:40,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2019-10-13 23:17:40,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2019-10-13 23:17:40,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 149 transitions. [2019-10-13 23:17:40,892 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 149 transitions. Word has length 43 [2019-10-13 23:17:40,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:40,893 INFO L462 AbstractCegarLoop]: Abstraction has 128 states and 149 transitions. [2019-10-13 23:17:40,893 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:17:40,893 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 149 transitions. [2019-10-13 23:17:40,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-13 23:17:40,895 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:40,896 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 23:17:40,896 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:40,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:40,896 INFO L82 PathProgramCache]: Analyzing trace with hash 1796130562, now seen corresponding path program 1 times [2019-10-13 23:17:40,897 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:40,897 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574517541] [2019-10-13 23:17:40,897 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:40,897 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:40,898 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:40,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:41,087 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 23:17:41,087 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574517541] [2019-10-13 23:17:41,088 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:17:41,088 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:17:41,088 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354531964] [2019-10-13 23:17:41,090 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:17:41,090 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:41,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:17:41,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:17:41,091 INFO L87 Difference]: Start difference. First operand 128 states and 149 transitions. Second operand 7 states. [2019-10-13 23:17:41,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:41,574 INFO L93 Difference]: Finished difference Result 384 states and 460 transitions. [2019-10-13 23:17:41,575 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 23:17:41,575 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 46 [2019-10-13 23:17:41,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:41,587 INFO L225 Difference]: With dead ends: 384 [2019-10-13 23:17:41,587 INFO L226 Difference]: Without dead ends: 278 [2019-10-13 23:17:41,592 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-13 23:17:41,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2019-10-13 23:17:41,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 270. [2019-10-13 23:17:41,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2019-10-13 23:17:41,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 323 transitions. [2019-10-13 23:17:41,685 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 323 transitions. Word has length 46 [2019-10-13 23:17:41,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:41,685 INFO L462 AbstractCegarLoop]: Abstraction has 270 states and 323 transitions. [2019-10-13 23:17:41,686 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:17:41,686 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 323 transitions. [2019-10-13 23:17:41,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-13 23:17:41,692 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:41,692 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 23:17:41,697 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:41,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:41,698 INFO L82 PathProgramCache]: Analyzing trace with hash -851174668, now seen corresponding path program 1 times [2019-10-13 23:17:41,698 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:41,698 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758740207] [2019-10-13 23:17:41,698 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:41,698 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:41,699 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:41,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:41,899 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 23:17:41,900 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758740207] [2019-10-13 23:17:41,900 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:17:41,900 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 23:17:41,901 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26446149] [2019-10-13 23:17:41,901 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 23:17:41,901 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:41,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 23:17:41,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-10-13 23:17:41,902 INFO L87 Difference]: Start difference. First operand 270 states and 323 transitions. Second operand 10 states. [2019-10-13 23:17:42,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:42,560 INFO L93 Difference]: Finished difference Result 975 states and 1214 transitions. [2019-10-13 23:17:42,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-13 23:17:42,562 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 51 [2019-10-13 23:17:42,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:42,568 INFO L225 Difference]: With dead ends: 975 [2019-10-13 23:17:42,568 INFO L226 Difference]: Without dead ends: 727 [2019-10-13 23:17:42,570 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 23:17:42,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2019-10-13 23:17:42,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 703. [2019-10-13 23:17:42,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 703 states. [2019-10-13 23:17:42,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 860 transitions. [2019-10-13 23:17:42,658 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 860 transitions. Word has length 51 [2019-10-13 23:17:42,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:42,659 INFO L462 AbstractCegarLoop]: Abstraction has 703 states and 860 transitions. [2019-10-13 23:17:42,659 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 23:17:42,659 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 860 transitions. [2019-10-13 23:17:42,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-10-13 23:17:42,663 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:42,664 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] [2019-10-13 23:17:42,664 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:42,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:42,664 INFO L82 PathProgramCache]: Analyzing trace with hash 367047727, now seen corresponding path program 1 times [2019-10-13 23:17:42,665 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:42,665 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79022816] [2019-10-13 23:17:42,665 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:42,665 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:42,665 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:42,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:42,734 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 23:17:42,734 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79022816] [2019-10-13 23:17:42,735 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:17:42,735 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 23:17:42,735 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267650953] [2019-10-13 23:17:42,735 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 23:17:42,736 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:42,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 23:17:42,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 23:17:42,736 INFO L87 Difference]: Start difference. First operand 703 states and 860 transitions. Second operand 4 states. [2019-10-13 23:17:43,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:43,159 INFO L93 Difference]: Finished difference Result 1708 states and 2242 transitions. [2019-10-13 23:17:43,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 23:17:43,159 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2019-10-13 23:17:43,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:43,166 INFO L225 Difference]: With dead ends: 1708 [2019-10-13 23:17:43,167 INFO L226 Difference]: Without dead ends: 1027 [2019-10-13 23:17:43,170 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 23:17:43,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2019-10-13 23:17:43,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 897. [2019-10-13 23:17:43,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 897 states. [2019-10-13 23:17:43,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1060 transitions. [2019-10-13 23:17:43,242 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1060 transitions. Word has length 54 [2019-10-13 23:17:43,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:43,243 INFO L462 AbstractCegarLoop]: Abstraction has 897 states and 1060 transitions. [2019-10-13 23:17:43,243 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 23:17:43,243 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1060 transitions. [2019-10-13 23:17:43,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-10-13 23:17:43,245 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:43,246 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 23:17:43,246 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:43,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:43,246 INFO L82 PathProgramCache]: Analyzing trace with hash 1521884808, now seen corresponding path program 1 times [2019-10-13 23:17:43,247 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:43,247 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241690529] [2019-10-13 23:17:43,247 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:43,247 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:43,247 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:43,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:43,371 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 23:17:43,371 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241690529] [2019-10-13 23:17:43,371 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1688951860] [2019-10-13 23:17:43,372 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 23:17:43,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:43,567 INFO L256 TraceCheckSpWp]: Trace formula consists of 738 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-13 23:17:43,577 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:17:43,630 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 23:17:43,631 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:17:43,766 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 23:17:43,766 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-13 23:17:43,767 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [7] total 9 [2019-10-13 23:17:43,767 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208500288] [2019-10-13 23:17:43,768 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:17:43,768 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:43,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:17:43,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-10-13 23:17:43,770 INFO L87 Difference]: Start difference. First operand 897 states and 1060 transitions. Second operand 7 states. [2019-10-13 23:17:44,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:44,091 INFO L93 Difference]: Finished difference Result 910 states and 1076 transitions. [2019-10-13 23:17:44,091 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 23:17:44,092 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 78 [2019-10-13 23:17:44,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:44,100 INFO L225 Difference]: With dead ends: 910 [2019-10-13 23:17:44,101 INFO L226 Difference]: Without dead ends: 907 [2019-10-13 23:17:44,102 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2019-10-13 23:17:44,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2019-10-13 23:17:44,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 897. [2019-10-13 23:17:44,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 897 states. [2019-10-13 23:17:44,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1057 transitions. [2019-10-13 23:17:44,171 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1057 transitions. Word has length 78 [2019-10-13 23:17:44,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:44,172 INFO L462 AbstractCegarLoop]: Abstraction has 897 states and 1057 transitions. [2019-10-13 23:17:44,172 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:17:44,172 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1057 transitions. [2019-10-13 23:17:44,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2019-10-13 23:17:44,178 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:44,178 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 23:17:44,385 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:17:44,385 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:44,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:44,386 INFO L82 PathProgramCache]: Analyzing trace with hash 2004119821, now seen corresponding path program 1 times [2019-10-13 23:17:44,386 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:44,387 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505322768] [2019-10-13 23:17:44,388 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:44,389 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:44,389 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:44,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:44,487 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-13 23:17:44,488 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505322768] [2019-10-13 23:17:44,488 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:17:44,489 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:17:44,489 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231243759] [2019-10-13 23:17:44,489 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:17:44,490 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:44,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:17:44,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:17:44,496 INFO L87 Difference]: Start difference. First operand 897 states and 1057 transitions. Second operand 3 states. [2019-10-13 23:17:44,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:44,556 INFO L93 Difference]: Finished difference Result 1023 states and 1210 transitions. [2019-10-13 23:17:44,556 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:17:44,557 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 118 [2019-10-13 23:17:44,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:44,561 INFO L225 Difference]: With dead ends: 1023 [2019-10-13 23:17:44,561 INFO L226 Difference]: Without dead ends: 401 [2019-10-13 23:17:44,563 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 23:17:44,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2019-10-13 23:17:44,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 401. [2019-10-13 23:17:44,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 401 states. [2019-10-13 23:17:44,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 458 transitions. [2019-10-13 23:17:44,585 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 458 transitions. Word has length 118 [2019-10-13 23:17:44,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:44,586 INFO L462 AbstractCegarLoop]: Abstraction has 401 states and 458 transitions. [2019-10-13 23:17:44,586 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:17:44,586 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 458 transitions. [2019-10-13 23:17:44,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-13 23:17:44,589 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:44,589 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, 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] [2019-10-13 23:17:44,589 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:44,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:44,590 INFO L82 PathProgramCache]: Analyzing trace with hash -428086081, now seen corresponding path program 1 times [2019-10-13 23:17:44,590 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:44,590 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84781866] [2019-10-13 23:17:44,590 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:44,590 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:44,591 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:44,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:44,896 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 16 proven. 12 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2019-10-13 23:17:44,896 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84781866] [2019-10-13 23:17:44,897 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2103977477] [2019-10-13 23:17:44,897 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 23:17:45,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:45,123 INFO L256 TraceCheckSpWp]: Trace formula consists of 908 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-13 23:17:45,130 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:17:45,228 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 21 proven. 9 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-10-13 23:17:45,228 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:17:45,622 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 19 proven. 9 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2019-10-13 23:17:45,622 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1200465103] [2019-10-13 23:17:45,651 INFO L162 IcfgInterpreter]: Started Sifa with 94 locations of interest [2019-10-13 23:17:45,652 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:17:45,659 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:17:45,667 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:17:45,667 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 23:17:54,374 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-13 23:17:56,074 WARN L191 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-13 23:17:56,219 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-13 23:17:56,360 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-13 23:17:56,486 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-13 23:17:56,762 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:57,019 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:57,251 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:57,520 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:57,861 WARN L191 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 542 DAG size of output: 540 [2019-10-13 23:17:58,061 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:58,207 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:58,330 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:58,439 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:58,571 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:58,585 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 184 for LOIs [2019-10-13 23:17:58,830 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 542 for LOIs [2019-10-13 23:17:58,950 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-13 23:17:59,066 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-13 23:17:59,240 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:59,361 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-13 23:17:59,595 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:59,830 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-13 23:17:59,948 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:00,172 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 542 [2019-10-13 23:18:00,285 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-13 23:18:00,447 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:00,555 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-13 23:18:00,765 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:01,106 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:01,212 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-13 23:18:01,424 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:01,771 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:02,079 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:02,185 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-13 23:18:02,295 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-13 23:18:02,420 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:02,529 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-13 23:18:02,739 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:03,059 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:03,264 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-13 23:18:03,406 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:03,582 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:03,689 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:03,928 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:04,134 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:18:04,239 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:04,370 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:04,479 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:04,584 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:04,698 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:04,842 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:04,950 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:05,069 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:05,186 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:05,315 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:05,455 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:05,563 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:05,670 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:05,790 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:05,898 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:18:06,007 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:18:06,129 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:06,239 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:06,351 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:06,477 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-13 23:18:06,599 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:06,705 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:06,828 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-13 23:18:07,031 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 564 DAG size of output: 560 [2019-10-13 23:18:07,139 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:07,303 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-13 23:18:07,425 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:07,532 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:07,651 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-13 23:18:07,878 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:18:07,983 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:08,111 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:08,310 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:18:08,419 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:08,541 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:08,652 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:08,758 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:08,872 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:09,006 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:09,114 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:09,233 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:09,360 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:09,471 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:09,611 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:09,720 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:09,829 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:10,023 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:10,229 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 567 DAG size of output: 560 [2019-10-13 23:18:10,337 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:10,460 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:10,647 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 569 DAG size of output: 562 [2019-10-13 23:18:10,758 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-13 23:18:10,884 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-13 23:18:11,099 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:18:11,207 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:11,324 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:11,523 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:18:11,628 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:11,747 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:11,870 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:11,976 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:12,091 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:12,293 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:18:12,406 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:12,523 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:12,712 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:18:12,817 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:12,933 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:13,039 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:13,144 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:13,262 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:13,381 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:13,489 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:13,623 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:13,741 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:13,848 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:13,966 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:14,073 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:14,193 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:14,309 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:14,493 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-13 23:18:14,599 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:18:14,717 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:14,919 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:18:15,025 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:15,142 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:15,335 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:18:15,441 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:15,558 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:15,664 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:15,769 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:15,882 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:16,062 WARN L191 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:16,170 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:16,288 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:16,479 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-13 23:18:16,595 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:18:16,714 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:16,914 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:18:17,020 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:17,139 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:17,446 WARN L191 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:18:17,558 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:17,673 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:17,870 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:18:17,975 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:18,092 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:18,284 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:18:18,394 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556