java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product61.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:24:11,287 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:24:11,290 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:24:11,308 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:24:11,308 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:24:11,310 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:24:11,312 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:24:11,324 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:24:11,326 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:24:11,328 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:24:11,330 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:24:11,331 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:24:11,331 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:24:11,333 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:24:11,336 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:24:11,337 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:24:11,340 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:24:11,342 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:24:11,344 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:24:11,350 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:24:11,354 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:24:11,355 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:24:11,356 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:24:11,357 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:24:11,360 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:24:11,360 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:24:11,360 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:24:11,362 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:24:11,363 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:24:11,364 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:24:11,364 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:24:11,365 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:24:11,366 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:24:11,366 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:24:11,368 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:24:11,368 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:24:11,369 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:24:11,369 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:24:11,369 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:24:11,371 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:24:11,375 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:24:11,376 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 03:24:11,394 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:24:11,394 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:24:11,397 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:24:11,398 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:24:11,398 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:24:11,398 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:24:11,398 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:24:11,399 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:24:11,399 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:24:11,399 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:24:11,399 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:24:11,399 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:24:11,400 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:24:11,400 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:24:11,400 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:24:11,400 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:24:11,400 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:24:11,401 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:24:11,401 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:24:11,401 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:24:11,401 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:24:11,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:24:11,402 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:24:11,402 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:24:11,402 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:24:11,402 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:24:11,403 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:24:11,403 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:24:11,406 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 03:24:11,679 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:24:11,698 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:24:11,703 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:24:11,705 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:24:11,705 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:24:11,706 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product61.cil.c [2019-10-15 03:24:11,778 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a7fe4603/2f3dd547800d492dae28ed8fdd666f18/FLAGf5b9c0663 [2019-10-15 03:24:12,322 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:24:12,325 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product61.cil.c [2019-10-15 03:24:12,353 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a7fe4603/2f3dd547800d492dae28ed8fdd666f18/FLAGf5b9c0663 [2019-10-15 03:24:12,622 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a7fe4603/2f3dd547800d492dae28ed8fdd666f18 [2019-10-15 03:24:12,631 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:24:12,632 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:24:12,633 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:24:12,633 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:24:12,636 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:24:12,636 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:24:12" (1/1) ... [2019-10-15 03:24:12,639 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6aa59513 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:24:12, skipping insertion in model container [2019-10-15 03:24:12,640 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:24:12" (1/1) ... [2019-10-15 03:24:12,648 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:24:12,706 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:24:13,128 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:24:13,148 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:24:13,230 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:24:13,273 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:24:13,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:24:13 WrapperNode [2019-10-15 03:24:13,274 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:24:13,275 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:24:13,275 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:24:13,275 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:24:13,287 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:24:13" (1/1) ... [2019-10-15 03:24:13,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:24:13" (1/1) ... [2019-10-15 03:24:13,309 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:24:13" (1/1) ... [2019-10-15 03:24:13,309 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:24:13" (1/1) ... [2019-10-15 03:24:13,338 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:24:13" (1/1) ... [2019-10-15 03:24:13,349 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:24:13" (1/1) ... [2019-10-15 03:24:13,354 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:24:13" (1/1) ... [2019-10-15 03:24:13,368 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:24:13,369 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:24:13,369 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:24:13,369 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:24:13,370 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:24:13" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:24:13,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:24:13,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:24:13,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:24:13,422 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:24:13,423 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-15 03:24:13,423 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-15 03:24:13,423 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-15 03:24:13,423 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-10-15 03:24:13,423 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-15 03:24:13,423 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-15 03:24:13,424 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-15 03:24:13,424 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-15 03:24:13,424 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-15 03:24:13,424 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-15 03:24:13,424 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-15 03:24:13,425 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-15 03:24:13,425 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-15 03:24:13,425 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-15 03:24:13,425 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-15 03:24:13,425 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-15 03:24:13,425 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-15 03:24:13,426 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-15 03:24:13,426 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-15 03:24:13,426 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-15 03:24:13,426 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-15 03:24:13,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:24:13,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:24:13,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:24:13,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:24:13,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:24:13,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:24:13,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-15 03:24:13,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-15 03:24:13,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-15 03:24:13,428 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:24:13,428 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:24:13,428 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:24:13,428 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:24:13,429 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:24:13,429 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-15 03:24:13,429 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-15 03:24:13,429 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:24:13,429 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-15 03:24:13,429 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:24:13,429 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:24:13,430 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:24:13,430 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:24:13,430 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-15 03:24:13,430 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-15 03:24:13,430 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-15 03:24:13,430 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-15 03:24:13,431 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:24:13,431 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-15 03:24:13,431 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-15 03:24:13,431 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-15 03:24:13,431 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-15 03:24:13,431 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-15 03:24:13,431 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-15 03:24:13,432 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-15 03:24:13,432 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-15 03:24:13,432 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-15 03:24:13,432 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-15 03:24:13,432 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-15 03:24:13,432 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-15 03:24:13,433 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-15 03:24:13,433 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-15 03:24:13,433 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-15 03:24:13,433 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-15 03:24:13,433 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-10-15 03:24:13,433 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-15 03:24:13,434 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-15 03:24:13,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:24:13,434 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-15 03:24:13,434 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:24:13,434 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:24:13,434 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:24:13,435 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:24:13,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:24:13,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:24:13,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:24:13,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:24:13,435 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:24:13,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:24:13,436 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:24:13,436 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:24:13,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:24:13,436 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:24:13,436 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:24:13,437 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:24:13,437 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:24:13,437 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-15 03:24:13,437 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:24:13,437 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:24:13,437 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:24:13,437 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:24:13,438 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-15 03:24:13,438 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:24:13,438 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-15 03:24:13,438 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:24:13,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:24:13,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:24:13,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:24:14,936 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:24:14,936 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-15 03:24:14,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:24:14 BoogieIcfgContainer [2019-10-15 03:24:14,939 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:24:14,940 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:24:14,941 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:24:14,945 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:24:14,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:24:12" (1/3) ... [2019-10-15 03:24:14,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34aee1e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:24:14, skipping insertion in model container [2019-10-15 03:24:14,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:24:13" (2/3) ... [2019-10-15 03:24:14,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34aee1e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:24:14, skipping insertion in model container [2019-10-15 03:24:14,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:24:14" (3/3) ... [2019-10-15 03:24:14,951 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product61.cil.c [2019-10-15 03:24:14,964 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:24:14,976 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:24:14,990 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:24:15,043 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:24:15,043 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:24:15,044 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:24:15,044 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:24:15,044 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:24:15,045 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:24:15,046 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:24:15,046 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:24:15,074 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states. [2019-10-15 03:24:15,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-15 03:24:15,089 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:24:15,090 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:24:15,092 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:24:15,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:24:15,099 INFO L82 PathProgramCache]: Analyzing trace with hash 842087760, now seen corresponding path program 1 times [2019-10-15 03:24:15,110 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:24:15,114 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134333216] [2019-10-15 03:24:15,114 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:24:15,114 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:24:15,115 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:24:15,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:24:15,535 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:24:15,536 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134333216] [2019-10-15 03:24:15,537 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:24:15,538 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:24:15,538 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144971661] [2019-10-15 03:24:15,546 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:24:15,547 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:24:15,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:24:15,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:24:15,564 INFO L87 Difference]: Start difference. First operand 170 states. Second operand 2 states. [2019-10-15 03:24:15,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:24:15,617 INFO L93 Difference]: Finished difference Result 270 states and 327 transitions. [2019-10-15 03:24:15,618 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:24:15,619 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2019-10-15 03:24:15,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:24:15,638 INFO L225 Difference]: With dead ends: 270 [2019-10-15 03:24:15,638 INFO L226 Difference]: Without dead ends: 137 [2019-10-15 03:24:15,653 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:24:15,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2019-10-15 03:24:15,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2019-10-15 03:24:15,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2019-10-15 03:24:15,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 159 transitions. [2019-10-15 03:24:15,710 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 159 transitions. Word has length 52 [2019-10-15 03:24:15,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:24:15,710 INFO L462 AbstractCegarLoop]: Abstraction has 137 states and 159 transitions. [2019-10-15 03:24:15,711 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:24:15,711 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 159 transitions. [2019-10-15 03:24:15,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-10-15 03:24:15,716 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:24:15,716 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:24:15,716 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:24:15,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:24:15,717 INFO L82 PathProgramCache]: Analyzing trace with hash 1118537415, now seen corresponding path program 1 times [2019-10-15 03:24:15,717 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:24:15,718 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064099416] [2019-10-15 03:24:15,718 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:24:15,718 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:24:15,718 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:24:15,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:24:15,946 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:24:15,947 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064099416] [2019-10-15 03:24:15,947 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:24:15,947 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:24:15,948 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483657666] [2019-10-15 03:24:15,950 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:24:15,950 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:24:15,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:24:15,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:24:15,951 INFO L87 Difference]: Start difference. First operand 137 states and 159 transitions. Second operand 7 states. [2019-10-15 03:24:16,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:24:16,398 INFO L93 Difference]: Finished difference Result 249 states and 296 transitions. [2019-10-15 03:24:16,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 03:24:16,399 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 55 [2019-10-15 03:24:16,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:24:16,402 INFO L225 Difference]: With dead ends: 249 [2019-10-15 03:24:16,402 INFO L226 Difference]: Without dead ends: 137 [2019-10-15 03:24:16,404 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-15 03:24:16,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2019-10-15 03:24:16,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2019-10-15 03:24:16,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2019-10-15 03:24:16,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 158 transitions. [2019-10-15 03:24:16,441 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 158 transitions. Word has length 55 [2019-10-15 03:24:16,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:24:16,445 INFO L462 AbstractCegarLoop]: Abstraction has 137 states and 158 transitions. [2019-10-15 03:24:16,445 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:24:16,445 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 158 transitions. [2019-10-15 03:24:16,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-10-15 03:24:16,452 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:24:16,452 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:24:16,452 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:24:16,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:24:16,453 INFO L82 PathProgramCache]: Analyzing trace with hash -1433403420, now seen corresponding path program 1 times [2019-10-15 03:24:16,453 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:24:16,454 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187394288] [2019-10-15 03:24:16,454 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:24:16,454 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:24:16,458 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:24:16,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:24:16,644 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:24:16,644 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187394288] [2019-10-15 03:24:16,645 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:24:16,645 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:24:16,646 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771862660] [2019-10-15 03:24:16,647 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:24:16,647 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:24:16,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:24:16,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:24:16,648 INFO L87 Difference]: Start difference. First operand 137 states and 158 transitions. Second operand 3 states. [2019-10-15 03:24:16,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:24:16,675 INFO L93 Difference]: Finished difference Result 228 states and 264 transitions. [2019-10-15 03:24:16,675 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:24:16,676 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2019-10-15 03:24:16,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:24:16,684 INFO L225 Difference]: With dead ends: 228 [2019-10-15 03:24:16,685 INFO L226 Difference]: Without dead ends: 129 [2019-10-15 03:24:16,688 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:24:16,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2019-10-15 03:24:16,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2019-10-15 03:24:16,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2019-10-15 03:24:16,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 147 transitions. [2019-10-15 03:24:16,705 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 147 transitions. Word has length 70 [2019-10-15 03:24:16,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:24:16,705 INFO L462 AbstractCegarLoop]: Abstraction has 129 states and 147 transitions. [2019-10-15 03:24:16,706 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:24:16,706 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 147 transitions. [2019-10-15 03:24:16,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-10-15 03:24:16,708 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:24:16,708 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:24:16,709 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:24:16,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:24:16,709 INFO L82 PathProgramCache]: Analyzing trace with hash 1054835444, now seen corresponding path program 1 times [2019-10-15 03:24:16,709 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:24:16,710 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121348039] [2019-10-15 03:24:16,710 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:24:16,710 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:24:16,710 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:24:16,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:24:16,817 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:24:16,817 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121348039] [2019-10-15 03:24:16,817 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:24:16,817 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 03:24:16,818 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140625789] [2019-10-15 03:24:16,821 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 03:24:16,821 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:24:16,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 03:24:16,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 03:24:16,822 INFO L87 Difference]: Start difference. First operand 129 states and 147 transitions. Second operand 5 states. [2019-10-15 03:24:17,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:24:17,477 INFO L93 Difference]: Finished difference Result 337 states and 398 transitions. [2019-10-15 03:24:17,479 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 03:24:17,480 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 72 [2019-10-15 03:24:17,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:24:17,483 INFO L225 Difference]: With dead ends: 337 [2019-10-15 03:24:17,483 INFO L226 Difference]: Without dead ends: 233 [2019-10-15 03:24:17,487 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-15 03:24:17,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2019-10-15 03:24:17,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 218. [2019-10-15 03:24:17,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2019-10-15 03:24:17,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 241 transitions. [2019-10-15 03:24:17,529 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 241 transitions. Word has length 72 [2019-10-15 03:24:17,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:24:17,531 INFO L462 AbstractCegarLoop]: Abstraction has 218 states and 241 transitions. [2019-10-15 03:24:17,531 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 03:24:17,532 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 241 transitions. [2019-10-15 03:24:17,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-10-15 03:24:17,538 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:24:17,538 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:24:17,539 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:24:17,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:24:17,539 INFO L82 PathProgramCache]: Analyzing trace with hash 1642495861, now seen corresponding path program 1 times [2019-10-15 03:24:17,539 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:24:17,539 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063205293] [2019-10-15 03:24:17,540 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:24:17,540 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:24:17,541 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:24:17,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:24:17,703 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-15 03:24:17,704 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063205293] [2019-10-15 03:24:17,704 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:24:17,704 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:24:17,704 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539607348] [2019-10-15 03:24:17,706 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:24:17,706 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:24:17,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:24:17,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:24:17,708 INFO L87 Difference]: Start difference. First operand 218 states and 241 transitions. Second operand 7 states. [2019-10-15 03:24:18,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:24:18,397 INFO L93 Difference]: Finished difference Result 425 states and 483 transitions. [2019-10-15 03:24:18,398 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 03:24:18,398 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 82 [2019-10-15 03:24:18,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:24:18,401 INFO L225 Difference]: With dead ends: 425 [2019-10-15 03:24:18,401 INFO L226 Difference]: Without dead ends: 232 [2019-10-15 03:24:18,402 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-15 03:24:18,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2019-10-15 03:24:18,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 217. [2019-10-15 03:24:18,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2019-10-15 03:24:18,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 238 transitions. [2019-10-15 03:24:18,421 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 238 transitions. Word has length 82 [2019-10-15 03:24:18,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:24:18,422 INFO L462 AbstractCegarLoop]: Abstraction has 217 states and 238 transitions. [2019-10-15 03:24:18,422 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:24:18,422 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 238 transitions. [2019-10-15 03:24:18,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2019-10-15 03:24:18,423 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:24:18,424 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:24:18,424 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:24:18,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:24:18,424 INFO L82 PathProgramCache]: Analyzing trace with hash 960203345, now seen corresponding path program 1 times [2019-10-15 03:24:18,425 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:24:18,425 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234831948] [2019-10-15 03:24:18,425 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:24:18,425 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:24:18,425 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:24:18,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:24:18,617 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:24:18,618 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234831948] [2019-10-15 03:24:18,618 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:24:18,618 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-15 03:24:18,619 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947463252] [2019-10-15 03:24:18,619 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-15 03:24:18,619 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:24:18,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-15 03:24:18,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2019-10-15 03:24:18,620 INFO L87 Difference]: Start difference. First operand 217 states and 238 transitions. Second operand 12 states. [2019-10-15 03:24:19,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:24:19,575 INFO L93 Difference]: Finished difference Result 556 states and 634 transitions. [2019-10-15 03:24:19,575 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-15 03:24:19,575 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 95 [2019-10-15 03:24:19,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:24:19,579 INFO L225 Difference]: With dead ends: 556 [2019-10-15 03:24:19,579 INFO L226 Difference]: Without dead ends: 364 [2019-10-15 03:24:19,580 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2019-10-15 03:24:19,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2019-10-15 03:24:19,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 355. [2019-10-15 03:24:19,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355 states. [2019-10-15 03:24:19,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 401 transitions. [2019-10-15 03:24:19,612 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 401 transitions. Word has length 95 [2019-10-15 03:24:19,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:24:19,613 INFO L462 AbstractCegarLoop]: Abstraction has 355 states and 401 transitions. [2019-10-15 03:24:19,613 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-15 03:24:19,613 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 401 transitions. [2019-10-15 03:24:19,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-10-15 03:24:19,615 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:24:19,615 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:24:19,615 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:24:19,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:24:19,616 INFO L82 PathProgramCache]: Analyzing trace with hash -696143968, now seen corresponding path program 1 times [2019-10-15 03:24:19,616 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:24:19,616 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899873907] [2019-10-15 03:24:19,616 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:24:19,617 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:24:19,617 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:24:19,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:24:19,822 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:24:19,823 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899873907] [2019-10-15 03:24:19,823 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:24:19,823 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-15 03:24:19,823 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553286643] [2019-10-15 03:24:19,824 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 03:24:19,825 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:24:19,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 03:24:19,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-15 03:24:19,825 INFO L87 Difference]: Start difference. First operand 355 states and 401 transitions. Second operand 9 states. [2019-10-15 03:24:20,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:24:20,836 INFO L93 Difference]: Finished difference Result 1095 states and 1273 transitions. [2019-10-15 03:24:20,837 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-15 03:24:20,837 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 98 [2019-10-15 03:24:20,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:24:20,845 INFO L225 Difference]: With dead ends: 1095 [2019-10-15 03:24:20,845 INFO L226 Difference]: Without dead ends: 827 [2019-10-15 03:24:20,847 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2019-10-15 03:24:20,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 827 states. [2019-10-15 03:24:20,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 827 to 725. [2019-10-15 03:24:20,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 725 states. [2019-10-15 03:24:20,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 825 transitions. [2019-10-15 03:24:20,924 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 825 transitions. Word has length 98 [2019-10-15 03:24:20,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:24:20,925 INFO L462 AbstractCegarLoop]: Abstraction has 725 states and 825 transitions. [2019-10-15 03:24:20,925 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 03:24:20,925 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 825 transitions. [2019-10-15 03:24:20,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2019-10-15 03:24:20,937 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:24:20,937 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:24:20,938 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:24:20,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:24:20,938 INFO L82 PathProgramCache]: Analyzing trace with hash 1941303312, now seen corresponding path program 1 times [2019-10-15 03:24:20,939 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:24:20,939 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132020258] [2019-10-15 03:24:20,939 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:24:20,940 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:24:20,940 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:24:20,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:24:21,234 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-15 03:24:21,234 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132020258] [2019-10-15 03:24:21,235 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [582354173] [2019-10-15 03:24:21,235 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:24:21,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:24:21,550 INFO L256 TraceCheckSpWp]: Trace formula consists of 966 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 03:24:21,571 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:24:21,770 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 30 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:24:21,770 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:24:22,361 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-15 03:24:22,362 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2145684441] [2019-10-15 03:24:22,411 INFO L162 IcfgInterpreter]: Started Sifa with 121 locations of interest [2019-10-15 03:24:22,411 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:24:22,419 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:24:22,428 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:24:22,429 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 03:24:29,978 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2019-10-15 03:24:31,628 WARN L191 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-15 03:24:31,787 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-15 03:24:31,925 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-15 03:24:32,096 WARN L191 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-15 03:24:32,376 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:24:32,596 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:24:32,818 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:24:33,016 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:24:33,318 WARN L191 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 546 DAG size of output: 544 [2019-10-15 03:24:33,427 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:24:33,577 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:24:33,707 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:24:33,871 WARN L191 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:24:33,995 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:24:34,004 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 187 for LOIs [2019-10-15 03:24:34,241 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 546 for LOIs [2019-10-15 03:24:34,342 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:24:34,480 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:24:34,615 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:34,728 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:24:35,079 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:35,202 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:24:35,313 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:24:35,436 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:35,693 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 546 [2019-10-15 03:24:35,941 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:36,149 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:24:36,298 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:36,506 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:24:36,635 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:36,835 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:24:36,970 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:37,286 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:37,638 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:37,840 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:24:37,960 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:38,277 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:38,387 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:24:38,606 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:38,810 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:24:38,928 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:39,079 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:39,224 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:39,346 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:39,553 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-15 03:24:39,662 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:39,789 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:39,900 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:40,014 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:40,142 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:40,289 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-15 03:24:40,401 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-15 03:24:40,524 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:40,644 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:40,756 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:40,881 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:41,100 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-15 03:24:41,210 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-15 03:24:41,331 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:41,443 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-15 03:24:41,553 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-15 03:24:41,685 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:41,796 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:41,910 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:42,047 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:24:42,175 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:42,287 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:42,413 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:24:42,625 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 568 DAG size of output: 564 [2019-10-15 03:24:42,737 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:42,890 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:24:43,000 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:43,112 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:43,241 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:24:43,454 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-15 03:24:43,567 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:43,696 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:43,903 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-15 03:24:44,013 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:44,268 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:44,457 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:44,566 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:44,687 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:44,816 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:44,928 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:45,064 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:45,301 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-15 03:24:45,412 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-15 03:24:45,537 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:45,732 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-15 03:24:45,843 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-15 03:24:45,965 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:46,175 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 571 DAG size of output: 564 [2019-10-15 03:24:46,288 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:46,410 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:46,601 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 573 DAG size of output: 566 [2019-10-15 03:24:46,714 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:24:46,839 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:24:47,049 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-15 03:24:47,175 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:47,300 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:47,501 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-15 03:24:47,610 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:47,729 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:47,840 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:47,950 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:48,069 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:48,288 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-15 03:24:48,399 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:48,521 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:48,721 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-15 03:24:48,834 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:48,972 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:49,080 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:49,193 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:49,317 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:49,543 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-15 03:24:49,653 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-15 03:24:49,775 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:49,892 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:50,007 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:50,149 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:50,340 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-15 03:24:50,450 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-15 03:24:50,570 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:50,830 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-15 03:24:50,939 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-15 03:24:51,063 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:51,263 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 568 DAG size of output: 564 [2019-10-15 03:24:51,378 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:51,512 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:24:51,729 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 568 DAG size of output: 564 [2019-10-15 03:24:51,840 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:51,962 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:24:52,162 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 568 DAG size of output: 564 [2019-10-15 03:24:52,286 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:52,412 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:24:52,650 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-15 03:24:52,761 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:52,881 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:53,086 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-15 03:24:53,195 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:53,316 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:53,424 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:53,536 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560