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_spec2_product40.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:15:19,274 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:15:19,277 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:15:19,299 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:15:19,300 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:15:19,302 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:15:19,304 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:15:19,314 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:15:19,321 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:15:19,324 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:15:19,326 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:15:19,327 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:15:19,327 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:15:19,329 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:15:19,331 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:15:19,333 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:15:19,334 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:15:19,335 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:15:19,337 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:15:19,342 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:15:19,347 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:15:19,350 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:15:19,353 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:15:19,354 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:15:19,356 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:15:19,356 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:15:19,356 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:15:19,358 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:15:19,359 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:15:19,360 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:15:19,360 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:15:19,362 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:15:19,364 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:15:19,365 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:15:19,367 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:15:19,367 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:15:19,368 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:15:19,368 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:15:19,368 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:15:19,369 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:15:19,370 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:15:19,371 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 23:15:19,401 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:15:19,402 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:15:19,403 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:15:19,403 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:15:19,403 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:15:19,404 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:15:19,404 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:15:19,404 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:15:19,404 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:15:19,404 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:15:19,405 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:15:19,405 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:15:19,405 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:15:19,405 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:15:19,405 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:15:19,406 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:15:19,406 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:15:19,406 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:15:19,406 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:15:19,406 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:15:19,407 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:15:19,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:15:19,407 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:15:19,407 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:15:19,408 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:15:19,408 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:15:19,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:15:19,408 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:15:19,408 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 23:15:19,728 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:15:19,741 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:15:19,745 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:15:19,746 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:15:19,747 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:15:19,748 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product40.cil.c [2019-10-13 23:15:19,811 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52abc45b9/691cba49df8f4b99a2518f9e39c0afb8/FLAG256fa5346 [2019-10-13 23:15:20,320 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:15:20,321 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product40.cil.c [2019-10-13 23:15:20,339 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52abc45b9/691cba49df8f4b99a2518f9e39c0afb8/FLAG256fa5346 [2019-10-13 23:15:20,614 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52abc45b9/691cba49df8f4b99a2518f9e39c0afb8 [2019-10-13 23:15:20,629 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:15:20,630 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:15:20,631 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:15:20,632 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:15:20,636 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:15:20,637 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:15:20" (1/1) ... [2019-10-13 23:15:20,640 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b893c0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:15:20, skipping insertion in model container [2019-10-13 23:15:20,640 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:15:20" (1/1) ... [2019-10-13 23:15:20,649 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:15:20,705 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:15:21,174 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:15:21,189 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:15:21,272 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:15:21,327 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:15:21,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:15:21 WrapperNode [2019-10-13 23:15:21,328 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:15:21,328 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:15:21,329 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:15:21,329 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:15:21,343 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:15:21" (1/1) ... [2019-10-13 23:15:21,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:15:21" (1/1) ... [2019-10-13 23:15:21,370 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:15:21" (1/1) ... [2019-10-13 23:15:21,370 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:15:21" (1/1) ... [2019-10-13 23:15:21,420 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:15:21" (1/1) ... [2019-10-13 23:15:21,432 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:15:21" (1/1) ... [2019-10-13 23:15:21,437 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:15:21" (1/1) ... [2019-10-13 23:15:21,444 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:15:21,445 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:15:21,445 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:15:21,445 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:15:21,446 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:15:21" (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 23:15:21,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:15:21,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:15:21,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:15:21,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-10-13 23:15:21,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-10-13 23:15:21,514 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 23:15:21,514 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 23:15:21,515 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 23:15:21,515 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 23:15:21,515 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 23:15:21,515 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 23:15:21,516 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 23:15:21,516 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:15:21,517 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 23:15:21,517 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-13 23:15:21,517 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 23:15:21,519 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 23:15:21,519 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 23:15:21,520 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 23:15:21,520 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 23:15:21,520 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 23:15:21,521 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 23:15:21,521 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 23:15:21,521 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-13 23:15:21,521 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-13 23:15:21,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:15:21,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:15:21,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:15:21,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:15:21,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:15:21,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:15:21,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:15:21,523 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 23:15:21,523 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 23:15:21,523 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:15:21,524 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 23:15:21,524 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:15:21,524 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:15:21,524 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:15:21,524 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:15:21,524 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:15:21,525 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:15:21,525 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:15:21,525 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:15:21,525 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:15:21,525 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 23:15:21,525 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 23:15:21,525 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-10-13 23:15:21,525 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-10-13 23:15:21,526 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 23:15:21,526 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 23:15:21,526 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 23:15:21,526 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 23:15:21,526 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 23:15:21,526 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 23:15:21,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:15:21,527 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-13 23:15:21,527 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-13 23:15:21,527 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 23:15:21,527 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 23:15:21,527 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:15:21,527 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 23:15:21,528 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 23:15:21,528 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 23:15:21,528 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 23:15:21,528 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-13 23:15:21,528 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 23:15:21,528 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 23:15:21,529 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 23:15:21,529 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:15:21,529 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:15:21,529 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:15:21,529 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:15:21,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:15:21,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:15:21,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:15:21,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:15:21,530 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:15:21,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:15:21,530 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:15:21,530 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:15:21,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:15:21,531 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:15:21,531 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:15:21,531 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:15:21,531 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 23:15:21,531 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:15:21,532 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 23:15:21,532 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:15:21,532 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:15:21,532 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:15:21,532 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:15:21,532 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:15:21,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:15:21,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:15:21,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:15:23,010 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:15:23,010 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 23:15:23,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:15:23 BoogieIcfgContainer [2019-10-13 23:15:23,012 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:15:23,014 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:15:23,015 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:15:23,018 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:15:23,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:15:20" (1/3) ... [2019-10-13 23:15:23,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45dd7a09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:15:23, skipping insertion in model container [2019-10-13 23:15:23,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:15:21" (2/3) ... [2019-10-13 23:15:23,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45dd7a09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:15:23, skipping insertion in model container [2019-10-13 23:15:23,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:15:23" (3/3) ... [2019-10-13 23:15:23,023 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product40.cil.c [2019-10-13 23:15:23,033 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:15:23,043 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:15:23,055 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:15:23,102 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:15:23,102 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:15:23,103 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:15:23,103 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:15:23,103 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:15:23,104 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:15:23,104 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:15:23,104 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:15:23,140 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states. [2019-10-13 23:15:23,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-13 23:15:23,156 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:15:23,158 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 23:15:23,164 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:15:23,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:15:23,171 INFO L82 PathProgramCache]: Analyzing trace with hash 1308768615, now seen corresponding path program 1 times [2019-10-13 23:15:23,184 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:15:23,185 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435210244] [2019-10-13 23:15:23,185 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:23,185 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:23,185 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:15:23,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:15:23,611 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 23:15:23,612 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435210244] [2019-10-13 23:15:23,612 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:15:23,613 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:15:23,613 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081639253] [2019-10-13 23:15:23,618 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:15:23,619 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:15:23,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:15:23,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:15:23,633 INFO L87 Difference]: Start difference. First operand 151 states. Second operand 2 states. [2019-10-13 23:15:23,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:15:23,673 INFO L93 Difference]: Finished difference Result 232 states and 285 transitions. [2019-10-13 23:15:23,673 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:15:23,674 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-10-13 23:15:23,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:15:23,689 INFO L225 Difference]: With dead ends: 232 [2019-10-13 23:15:23,689 INFO L226 Difference]: Without dead ends: 118 [2019-10-13 23:15:23,694 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 23:15:23,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2019-10-13 23:15:23,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2019-10-13 23:15:23,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2019-10-13 23:15:23,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 138 transitions. [2019-10-13 23:15:23,758 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 138 transitions. Word has length 46 [2019-10-13 23:15:23,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:15:23,759 INFO L462 AbstractCegarLoop]: Abstraction has 118 states and 138 transitions. [2019-10-13 23:15:23,759 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:15:23,760 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 138 transitions. [2019-10-13 23:15:23,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-13 23:15:23,764 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:15:23,764 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] [2019-10-13 23:15:23,764 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:15:23,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:15:23,765 INFO L82 PathProgramCache]: Analyzing trace with hash 932254501, now seen corresponding path program 1 times [2019-10-13 23:15:23,765 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:15:23,766 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379989743] [2019-10-13 23:15:23,766 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:23,766 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:23,766 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:15:23,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:15:23,921 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 23:15:23,922 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379989743] [2019-10-13 23:15:23,922 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:15:23,923 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:15:23,923 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430063819] [2019-10-13 23:15:23,925 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:15:23,925 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:15:23,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:15:23,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:15:23,926 INFO L87 Difference]: Start difference. First operand 118 states and 138 transitions. Second operand 3 states. [2019-10-13 23:15:23,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:15:23,949 INFO L93 Difference]: Finished difference Result 180 states and 210 transitions. [2019-10-13 23:15:23,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:15:23,950 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-10-13 23:15:23,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:15:23,953 INFO L225 Difference]: With dead ends: 180 [2019-10-13 23:15:23,953 INFO L226 Difference]: Without dead ends: 110 [2019-10-13 23:15:23,955 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 23:15:23,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-10-13 23:15:23,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2019-10-13 23:15:23,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-10-13 23:15:23,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 127 transitions. [2019-10-13 23:15:23,971 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 127 transitions. Word has length 47 [2019-10-13 23:15:23,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:15:23,972 INFO L462 AbstractCegarLoop]: Abstraction has 110 states and 127 transitions. [2019-10-13 23:15:23,972 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:15:23,972 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 127 transitions. [2019-10-13 23:15:23,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-13 23:15:23,975 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:15:23,975 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 23:15:23,975 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:15:23,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:15:23,976 INFO L82 PathProgramCache]: Analyzing trace with hash 597037751, now seen corresponding path program 1 times [2019-10-13 23:15:23,976 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:15:23,976 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354335798] [2019-10-13 23:15:23,977 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:23,977 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:23,977 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:15:24,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:15:24,182 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 23:15:24,183 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354335798] [2019-10-13 23:15:24,183 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:15:24,183 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:15:24,183 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450768221] [2019-10-13 23:15:24,184 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:15:24,184 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:15:24,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:15:24,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:15:24,185 INFO L87 Difference]: Start difference. First operand 110 states and 127 transitions. Second operand 7 states. [2019-10-13 23:15:24,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:15:24,679 INFO L93 Difference]: Finished difference Result 326 states and 393 transitions. [2019-10-13 23:15:24,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 23:15:24,680 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2019-10-13 23:15:24,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:15:24,684 INFO L225 Difference]: With dead ends: 326 [2019-10-13 23:15:24,685 INFO L226 Difference]: Without dead ends: 241 [2019-10-13 23:15:24,686 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 23:15:24,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2019-10-13 23:15:24,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 229. [2019-10-13 23:15:24,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2019-10-13 23:15:24,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 275 transitions. [2019-10-13 23:15:24,744 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 275 transitions. Word has length 51 [2019-10-13 23:15:24,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:15:24,745 INFO L462 AbstractCegarLoop]: Abstraction has 229 states and 275 transitions. [2019-10-13 23:15:24,745 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:15:24,745 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 275 transitions. [2019-10-13 23:15:24,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-10-13 23:15:24,750 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:15:24,754 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:15:24,754 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:15:24,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:15:24,755 INFO L82 PathProgramCache]: Analyzing trace with hash 78741191, now seen corresponding path program 1 times [2019-10-13 23:15:24,755 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:15:24,755 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899754829] [2019-10-13 23:15:24,756 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:24,756 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:24,756 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:15:24,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:15:24,916 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 23:15:24,916 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899754829] [2019-10-13 23:15:24,916 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:15:24,917 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 23:15:24,917 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625207804] [2019-10-13 23:15:24,917 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 23:15:24,918 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:15:24,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 23:15:24,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 23:15:24,919 INFO L87 Difference]: Start difference. First operand 229 states and 275 transitions. Second operand 6 states. [2019-10-13 23:15:25,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:15:25,142 INFO L93 Difference]: Finished difference Result 619 states and 762 transitions. [2019-10-13 23:15:25,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 23:15:25,145 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 55 [2019-10-13 23:15:25,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:15:25,156 INFO L225 Difference]: With dead ends: 619 [2019-10-13 23:15:25,156 INFO L226 Difference]: Without dead ends: 415 [2019-10-13 23:15:25,161 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-13 23:15:25,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2019-10-13 23:15:25,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 403. [2019-10-13 23:15:25,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 403 states. [2019-10-13 23:15:25,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 487 transitions. [2019-10-13 23:15:25,240 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 487 transitions. Word has length 55 [2019-10-13 23:15:25,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:15:25,240 INFO L462 AbstractCegarLoop]: Abstraction has 403 states and 487 transitions. [2019-10-13 23:15:25,241 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 23:15:25,241 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 487 transitions. [2019-10-13 23:15:25,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-10-13 23:15:25,248 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:15:25,248 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:15:25,248 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:15:25,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:15:25,249 INFO L82 PathProgramCache]: Analyzing trace with hash 1511618222, now seen corresponding path program 1 times [2019-10-13 23:15:25,249 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:15:25,250 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803612831] [2019-10-13 23:15:25,250 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:25,250 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:25,250 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:15:25,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:15:25,434 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 23:15:25,435 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803612831] [2019-10-13 23:15:25,435 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:15:25,435 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:15:25,436 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634870171] [2019-10-13 23:15:25,437 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:15:25,437 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:15:25,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:15:25,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:15:25,439 INFO L87 Difference]: Start difference. First operand 403 states and 487 transitions. Second operand 7 states. [2019-10-13 23:15:26,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:15:26,059 INFO L93 Difference]: Finished difference Result 1075 states and 1418 transitions. [2019-10-13 23:15:26,059 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 23:15:26,059 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 58 [2019-10-13 23:15:26,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:15:26,065 INFO L225 Difference]: With dead ends: 1075 [2019-10-13 23:15:26,065 INFO L226 Difference]: Without dead ends: 697 [2019-10-13 23:15:26,067 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-13 23:15:26,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2019-10-13 23:15:26,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 608. [2019-10-13 23:15:26,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 608 states. [2019-10-13 23:15:26,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 732 transitions. [2019-10-13 23:15:26,118 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 732 transitions. Word has length 58 [2019-10-13 23:15:26,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:15:26,118 INFO L462 AbstractCegarLoop]: Abstraction has 608 states and 732 transitions. [2019-10-13 23:15:26,119 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:15:26,149 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 732 transitions. [2019-10-13 23:15:26,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2019-10-13 23:15:26,151 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:15:26,154 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:15:26,154 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:15:26,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:15:26,154 INFO L82 PathProgramCache]: Analyzing trace with hash -1618108352, now seen corresponding path program 1 times [2019-10-13 23:15:26,155 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:15:26,155 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430864261] [2019-10-13 23:15:26,155 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:26,156 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:26,156 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:15:26,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:15:26,247 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 23:15:26,248 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430864261] [2019-10-13 23:15:26,249 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:15:26,249 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:15:26,249 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10958731] [2019-10-13 23:15:26,249 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:15:26,250 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:15:26,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:15:26,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:15:26,250 INFO L87 Difference]: Start difference. First operand 608 states and 732 transitions. Second operand 3 states. [2019-10-13 23:15:26,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:15:26,310 INFO L93 Difference]: Finished difference Result 855 states and 1056 transitions. [2019-10-13 23:15:26,311 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:15:26,312 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 76 [2019-10-13 23:15:26,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:15:26,318 INFO L225 Difference]: With dead ends: 855 [2019-10-13 23:15:26,318 INFO L226 Difference]: Without dead ends: 852 [2019-10-13 23:15:26,319 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 23:15:26,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 852 states. [2019-10-13 23:15:26,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 852 to 812. [2019-10-13 23:15:26,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 812 states. [2019-10-13 23:15:26,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 812 states to 812 states and 1003 transitions. [2019-10-13 23:15:26,378 INFO L78 Accepts]: Start accepts. Automaton has 812 states and 1003 transitions. Word has length 76 [2019-10-13 23:15:26,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:15:26,379 INFO L462 AbstractCegarLoop]: Abstraction has 812 states and 1003 transitions. [2019-10-13 23:15:26,379 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:15:26,379 INFO L276 IsEmpty]: Start isEmpty. Operand 812 states and 1003 transitions. [2019-10-13 23:15:26,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2019-10-13 23:15:26,388 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:15:26,388 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:15:26,389 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:15:26,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:15:26,389 INFO L82 PathProgramCache]: Analyzing trace with hash -1554983362, now seen corresponding path program 1 times [2019-10-13 23:15:26,389 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:15:26,390 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134717679] [2019-10-13 23:15:26,390 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:26,390 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:26,390 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:15:26,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:15:26,666 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-13 23:15:26,667 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134717679] [2019-10-13 23:15:26,667 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [369177378] [2019-10-13 23:15:26,667 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 23:15:26,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:15:26,908 INFO L256 TraceCheckSpWp]: Trace formula consists of 890 conjuncts, 25 conjunts are in the unsatisfiable core [2019-10-13 23:15:26,972 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:15:27,186 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-13 23:15:27,187 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:15:27,728 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-10-13 23:15:27,729 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 23:15:27,729 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [14, 11] total 29 [2019-10-13 23:15:27,729 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246206771] [2019-10-13 23:15:27,730 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 23:15:27,730 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:15:27,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 23:15:27,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=728, Unknown=0, NotChecked=0, Total=812 [2019-10-13 23:15:27,731 INFO L87 Difference]: Start difference. First operand 812 states and 1003 transitions. Second operand 11 states. [2019-10-13 23:15:28,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:15:28,425 INFO L93 Difference]: Finished difference Result 1910 states and 2427 transitions. [2019-10-13 23:15:28,428 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-13 23:15:28,429 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 129 [2019-10-13 23:15:28,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:15:28,440 INFO L225 Difference]: With dead ends: 1910 [2019-10-13 23:15:28,440 INFO L226 Difference]: Without dead ends: 1123 [2019-10-13 23:15:28,444 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=138, Invalid=1052, Unknown=0, NotChecked=0, Total=1190 [2019-10-13 23:15:28,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1123 states. [2019-10-13 23:15:28,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1123 to 1089. [2019-10-13 23:15:28,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1089 states. [2019-10-13 23:15:28,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1089 states to 1089 states and 1322 transitions. [2019-10-13 23:15:28,540 INFO L78 Accepts]: Start accepts. Automaton has 1089 states and 1322 transitions. Word has length 129 [2019-10-13 23:15:28,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:15:28,541 INFO L462 AbstractCegarLoop]: Abstraction has 1089 states and 1322 transitions. [2019-10-13 23:15:28,543 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 23:15:28,543 INFO L276 IsEmpty]: Start isEmpty. Operand 1089 states and 1322 transitions. [2019-10-13 23:15:28,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2019-10-13 23:15:28,551 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:15:28,551 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:15:28,758 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:15:28,759 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:15:28,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:15:28,760 INFO L82 PathProgramCache]: Analyzing trace with hash 714240747, now seen corresponding path program 1 times [2019-10-13 23:15:28,760 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:15:28,760 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962467234] [2019-10-13 23:15:28,761 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:28,761 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:28,761 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:15:28,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:15:29,038 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 21 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-13 23:15:29,039 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962467234] [2019-10-13 23:15:29,039 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1132547276] [2019-10-13 23:15:29,040 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 23:15:29,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:15:29,304 INFO L256 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-13 23:15:29,319 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:15:29,409 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 28 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-13 23:15:29,409 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:15:29,646 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 24 proven. 5 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-13 23:15:29,647 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2021753331] [2019-10-13 23:15:29,676 INFO L162 IcfgInterpreter]: Started Sifa with 84 locations of interest [2019-10-13 23:15:29,676 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:15:29,682 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:15:29,690 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:15:29,691 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 23:15:38,850 WARN L191 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2019-10-13 23:15:40,573 WARN L191 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-13 23:15:40,751 WARN L191 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-13 23:15:40,911 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-13 23:15:41,073 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-13 23:15:41,331 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:41,566 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:41,748 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:41,952 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:42,436 WARN L191 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 546 DAG size of output: 544 [2019-10-13 23:15:42,622 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:42,783 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:42,917 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:43,073 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:43,217 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:43,227 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 187 for LOIs [2019-10-13 23:15:43,474 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 513 [2019-10-13 23:15:43,476 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 546 for LOIs [2019-10-13 23:15:43,589 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:15:43,755 WARN L191 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:15:43,903 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:44,021 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:15:44,126 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:15:44,291 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:44,423 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:15:44,549 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:15:44,681 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:44,904 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 546 [2019-10-13 23:15:45,050 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:15:45,192 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:45,401 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:15:45,524 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:45,638 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:15:45,861 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:45,970 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:15:46,077 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:15:46,204 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:46,441 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:15:46,559 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:46,662 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:15:46,879 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:47,082 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:15:47,213 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:47,315 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:15:47,532 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:47,851 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:47,968 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:15:48,083 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:15:48,204 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:48,361 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:48,478 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:48,606 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:48,819 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:15:48,945 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:49,087 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:49,198 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:49,316 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:49,448 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:49,603 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:15:49,721 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:15:49,912 WARN L191 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:15:50,057 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:15:50,173 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:15:50,446 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:15:50,583 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:15:50,698 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:15:50,819 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:15:50,937 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:15:51,050 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:15:51,194 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:15:51,313 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:15:51,427 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:15:51,560 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-13 23:15:51,701 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:15:51,815 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:15:51,990 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-13 23:15:52,232 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 568 [2019-10-13 23:15:52,373 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:15:52,506 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-13 23:15:52,620 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:15:52,734 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:15:52,859 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-13 23:15:53,072 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:15:53,185 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:53,311 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:53,529 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:15:53,642 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:53,764 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:53,876 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:53,987 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:54,114 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:54,244 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:15:54,357 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:15:54,513 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:15:54,633 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:15:54,748 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:15:54,876 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:15:54,989 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:15:55,113 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:15:55,242 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:15:55,449 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 575 DAG size of output: 568 [2019-10-13 23:15:55,570 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:15:55,699 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:15:55,903 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 577 DAG size of output: 570 [2019-10-13 23:15:56,016 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-13 23:15:56,157 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-13 23:15:56,373 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:15:56,484 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:56,608 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:56,834 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:15:56,963 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:57,094 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:57,205 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:57,318 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:57,442 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:57,664 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:15:57,774 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:57,901 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:58,113 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:15:58,226 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:58,390 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:58,501 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:58,614 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:58,736 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:58,953 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-13 23:15:59,072 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:15:59,214 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:15:59,445 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:15:59,566 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:15:59,696 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:15:59,925 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:16:00,036 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:00,158 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:00,412 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:16:00,531 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:00,658 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564