java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/SifaC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --sifa.abstract.domain ExplicitValueDomain --rcfgbuilder.size.of.a.code.block SingleStatement --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.intern.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_DDA -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product14.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-18 12:19:43,539 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-18 12:19:43,543 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-18 12:19:43,553 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-18 12:19:43,553 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-18 12:19:43,554 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-18 12:19:43,555 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-18 12:19:43,557 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-18 12:19:43,558 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-18 12:19:43,559 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-18 12:19:43,560 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-18 12:19:43,561 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-18 12:19:43,562 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-18 12:19:43,563 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-18 12:19:43,563 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-18 12:19:43,568 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-18 12:19:43,568 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-18 12:19:43,569 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-18 12:19:43,571 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-18 12:19:43,578 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-18 12:19:43,581 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-18 12:19:43,582 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-18 12:19:43,584 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-18 12:19:43,584 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-18 12:19:43,590 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-18 12:19:43,590 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-18 12:19:43,591 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-18 12:19:43,591 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-18 12:19:43,592 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-18 12:19:43,593 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-18 12:19:43,593 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-18 12:19:43,594 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-18 12:19:43,595 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-18 12:19:43,595 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-18 12:19:43,596 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-18 12:19:43,597 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-18 12:19:43,597 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-18 12:19:43,597 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-18 12:19:43,598 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-18 12:19:43,598 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-18 12:19:43,599 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-18 12:19:43,600 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 [2019-09-18 12:19:43,613 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-18 12:19:43,614 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-18 12:19:43,615 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-18 12:19:43,615 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-18 12:19:43,615 INFO L138 SettingsManager]: * Use SBE=true [2019-09-18 12:19:43,616 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-18 12:19:43,616 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-18 12:19:43,616 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-18 12:19:43,616 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-18 12:19:43,616 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-18 12:19:43,617 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-18 12:19:43,617 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-18 12:19:43,617 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-18 12:19:43,617 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-18 12:19:43,617 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-18 12:19:43,618 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-18 12:19:43,618 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-18 12:19:43,618 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-18 12:19:43,618 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-18 12:19:43,619 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-18 12:19:43,619 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-18 12:19:43,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-18 12:19:43,619 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-18 12:19:43,619 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-18 12:19:43,620 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-18 12:19:43,620 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-18 12:19:43,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-18 12:19:43,620 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-18 12:19:43,620 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> ExplicitValueDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement 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: Intern Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_DDA [2019-09-18 12:19:43,661 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-18 12:19:43,680 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-18 12:19:43,684 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-18 12:19:43,685 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-18 12:19:43,685 INFO L275 PluginConnector]: CDTParser initialized [2019-09-18 12:19:43,686 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product14.cil.c [2019-09-18 12:19:43,747 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43b1d8846/0703f46b55014a0bb8f8edfbcd2391fc/FLAG3972f191e [2019-09-18 12:19:44,245 INFO L306 CDTParser]: Found 1 translation units. [2019-09-18 12:19:44,246 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product14.cil.c [2019-09-18 12:19:44,261 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43b1d8846/0703f46b55014a0bb8f8edfbcd2391fc/FLAG3972f191e [2019-09-18 12:19:44,578 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43b1d8846/0703f46b55014a0bb8f8edfbcd2391fc [2019-09-18 12:19:44,587 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-18 12:19:44,588 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-18 12:19:44,589 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-18 12:19:44,589 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-18 12:19:44,592 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-18 12:19:44,592 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 12:19:44" (1/1) ... [2019-09-18 12:19:44,595 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26e0429e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:19:44, skipping insertion in model container [2019-09-18 12:19:44,595 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 12:19:44" (1/1) ... [2019-09-18 12:19:44,602 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-18 12:19:44,666 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-18 12:19:45,130 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-18 12:19:45,150 INFO L188 MainTranslator]: Completed pre-run [2019-09-18 12:19:45,257 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-18 12:19:45,292 INFO L192 MainTranslator]: Completed translation [2019-09-18 12:19:45,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:19:45 WrapperNode [2019-09-18 12:19:45,293 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-18 12:19:45,293 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-18 12:19:45,294 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-18 12:19:45,294 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-18 12:19:45,306 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:19:45" (1/1) ... [2019-09-18 12:19:45,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:19:45" (1/1) ... [2019-09-18 12:19:45,324 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:19:45" (1/1) ... [2019-09-18 12:19:45,325 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:19:45" (1/1) ... [2019-09-18 12:19:45,351 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:19:45" (1/1) ... [2019-09-18 12:19:45,361 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:19:45" (1/1) ... [2019-09-18 12:19:45,366 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:19:45" (1/1) ... [2019-09-18 12:19:45,374 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-18 12:19:45,374 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-18 12:19:45,375 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-18 12:19:45,375 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-18 12:19:45,376 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:19:45" (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 [2019-09-18 12:19:45,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-18 12:19:45,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-18 12:19:45,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-18 12:19:45,444 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-18 12:19:45,444 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-18 12:19:45,445 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-18 12:19:45,445 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-18 12:19:45,445 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-18 12:19:45,445 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-18 12:19:45,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-18 12:19:45,446 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-18 12:19:45,446 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-18 12:19:45,446 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-18 12:19:45,446 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-18 12:19:45,446 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-18 12:19:45,446 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-18 12:19:45,447 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-18 12:19:45,447 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-18 12:19:45,447 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-18 12:19:45,447 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-18 12:19:45,447 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-18 12:19:45,447 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-18 12:19:45,448 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-18 12:19:45,448 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-18 12:19:45,448 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-18 12:19:45,448 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-18 12:19:45,448 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-09-18 12:19:45,449 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-18 12:19:45,449 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2019-09-18 12:19:45,449 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-18 12:19:45,449 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-18 12:19:45,449 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-18 12:19:45,449 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-18 12:19:45,449 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-18 12:19:45,450 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-18 12:19:45,450 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-09-18 12:19:45,450 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-18 12:19:45,450 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-18 12:19:45,450 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-18 12:19:45,450 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-18 12:19:45,451 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-18 12:19:45,451 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-18 12:19:45,451 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-18 12:19:45,451 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-18 12:19:45,451 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-18 12:19:45,451 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-18 12:19:45,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-18 12:19:45,452 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-18 12:19:45,452 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-18 12:19:45,452 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-18 12:19:45,452 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-18 12:19:45,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-18 12:19:45,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-18 12:19:45,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-18 12:19:45,453 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-18 12:19:45,453 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-18 12:19:45,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-18 12:19:45,453 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-18 12:19:45,453 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-18 12:19:45,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-18 12:19:45,454 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-18 12:19:45,454 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-18 12:19:45,454 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-18 12:19:45,454 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-18 12:19:45,454 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-18 12:19:45,455 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-18 12:19:45,455 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-18 12:19:45,455 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-18 12:19:45,455 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-18 12:19:45,455 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-18 12:19:45,455 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-18 12:19:45,456 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-18 12:19:45,456 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-18 12:19:45,456 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-18 12:19:45,456 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-18 12:19:45,456 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-18 12:19:45,456 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-18 12:19:45,457 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-18 12:19:45,457 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-18 12:19:45,457 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-09-18 12:19:45,457 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-18 12:19:45,457 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-09-18 12:19:45,457 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-18 12:19:45,458 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2019-09-18 12:19:45,458 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-18 12:19:45,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-18 12:19:45,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-18 12:19:45,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-18 12:19:46,712 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-18 12:19:46,712 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-18 12:19:46,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 12:19:46 BoogieIcfgContainer [2019-09-18 12:19:46,714 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-18 12:19:46,714 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-18 12:19:46,715 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-18 12:19:46,715 INFO L275 PluginConnector]: Sifa initialized [2019-09-18 12:19:46,716 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 12:19:46" (1/1) ... [2019-09-18 12:19:46,716 INFO L79 SifaObserver]: Intern domains=ExplicitValueDomain;IntervalDomain ♦ Abstract Domain=ExplicitValueDomain ♦ Abstract when formula's dag size exceeds (negative numbers disable this limit)=-1 ♦ Fluid=SizeLimitFluid ♦ Max. Parallel Explicit Values=2 ♦ Max. Parallel Intervals=2 ♦ Loop Summarizer=FixpointLoopSummarizer ♦ Abstract when formula has more disjuncts than (negative numbers disable this limit)=8 ♦ Call Summarizer=TopInputCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ Simplification Technique=SIMPLIFY_DDA ♦ Intern Fluid=SizeLimitFluid [2019-09-18 12:19:46,737 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-18 12:19:46,738 INFO L169 IcfgInterpreter]: Building call graph [2019-09-18 12:19:46,746 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-18 12:19:46,755 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-18 12:19:46,757 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-18 12:19:47,458 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2019-09-18 12:19:47,688 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2019-09-18 12:19:48,073 WARN L191 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 107 [2019-09-18 12:19:48,445 WARN L191 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 102 [2019-09-18 12:19:48,948 WARN L191 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 126 [2019-09-18 12:19:49,428 WARN L191 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 121 [2019-09-18 12:19:50,156 WARN L191 SmtUtils]: Spent 631.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 146 [2019-09-18 12:19:50,770 WARN L191 SmtUtils]: Spent 545.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 141 [2019-09-18 12:19:51,696 WARN L191 SmtUtils]: Spent 795.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 155 [2019-09-18 12:19:52,458 WARN L191 SmtUtils]: Spent 659.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 150 [2019-09-18 12:19:53,617 WARN L191 SmtUtils]: Spent 973.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 164 [2019-09-18 12:19:54,407 WARN L191 SmtUtils]: Spent 688.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 159 [2019-09-18 12:19:54,665 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-18 12:19:55,867 WARN L191 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 224 DAG size of output: 172 [2019-09-18 12:19:56,872 WARN L191 SmtUtils]: Spent 841.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 169 [2019-09-18 12:19:57,197 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-09-18 12:19:58,350 WARN L191 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 262 DAG size of output: 182 [2019-09-18 12:19:59,466 WARN L191 SmtUtils]: Spent 937.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 179 [2019-09-18 12:19:59,861 WARN L191 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2019-09-18 12:20:01,303 WARN L191 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 290 DAG size of output: 192 [2019-09-18 12:20:02,622 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 229 DAG size of output: 189 [2019-09-18 12:20:03,265 WARN L191 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2019-09-18 12:20:05,573 WARN L191 SmtUtils]: Spent 2.30 s on a formula simplification. DAG size of input: 362 DAG size of output: 202 [2019-09-18 12:20:05,822 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2019-09-18 12:20:07,024 WARN L191 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 237 DAG size of output: 201 [2019-09-18 12:20:07,700 WARN L191 SmtUtils]: Spent 507.00 ms on a formula simplification that was a NOOP. DAG size: 245 [2019-09-18 12:20:09,770 WARN L191 SmtUtils]: Spent 2.06 s on a formula simplification. DAG size of input: 395 DAG size of output: 214 [2019-09-18 12:20:10,029 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-18 12:20:11,408 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 262 DAG size of output: 213 [2019-09-18 12:20:12,467 WARN L191 SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 287 [2019-09-18 12:20:15,781 WARN L191 SmtUtils]: Spent 3.30 s on a formula simplification. DAG size of input: 422 DAG size of output: 227 [2019-09-18 12:20:17,522 WARN L191 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 262 DAG size of output: 222 [2019-09-18 12:20:18,929 WARN L191 SmtUtils]: Spent 833.00 ms on a formula simplification that was a NOOP. DAG size: 341 [2019-09-18 12:20:22,892 WARN L191 SmtUtils]: Spent 3.95 s on a formula simplification. DAG size of input: 521 DAG size of output: 235 [2019-09-18 12:20:23,243 WARN L191 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2019-09-18 12:20:25,028 WARN L191 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 295 DAG size of output: 236 [2019-09-18 12:20:26,297 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 387 [2019-09-18 12:20:29,806 WARN L191 SmtUtils]: Spent 3.50 s on a formula simplification. DAG size of input: 514 DAG size of output: 249 [2019-09-18 12:20:30,202 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2019-09-18 12:20:32,164 WARN L191 SmtUtils]: Spent 1.96 s on a formula simplification. DAG size of input: 298 DAG size of output: 250 [2019-09-18 12:20:33,745 WARN L191 SmtUtils]: Spent 1.23 s on a formula simplification that was a NOOP. DAG size: 437 [2019-09-18 12:20:38,181 WARN L191 SmtUtils]: Spent 4.42 s on a formula simplification. DAG size of input: 625 DAG size of output: 263 [2019-09-18 12:20:38,537 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-09-18 12:20:40,633 WARN L191 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 310 DAG size of output: 260 [2019-09-18 12:20:42,538 WARN L191 SmtUtils]: Spent 1.56 s on a formula simplification that was a NOOP. DAG size: 499 [2019-09-18 12:20:47,820 WARN L191 SmtUtils]: Spent 5.27 s on a formula simplification. DAG size of input: 689 DAG size of output: 279 [2019-09-18 12:20:48,218 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2019-09-18 12:20:50,580 WARN L191 SmtUtils]: Spent 2.36 s on a formula simplification. DAG size of input: 338 DAG size of output: 276 [2019-09-18 12:20:53,575 WARN L191 SmtUtils]: Spent 1.92 s on a formula simplification that was a NOOP. DAG size: 565 [2019-09-18 12:21:01,816 WARN L191 SmtUtils]: Spent 8.22 s on a formula simplification. DAG size of input: 757 DAG size of output: 289 [2019-09-18 12:21:02,241 WARN L191 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2019-09-18 12:21:04,824 WARN L191 SmtUtils]: Spent 2.58 s on a formula simplification. DAG size of input: 358 DAG size of output: 286 [2019-09-18 12:21:08,371 WARN L191 SmtUtils]: Spent 2.27 s on a formula simplification that was a NOOP. DAG size: 623 [2019-09-18 12:21:18,519 WARN L191 SmtUtils]: Spent 10.13 s on a formula simplification. DAG size of input: 809 DAG size of output: 307 [2019-09-18 12:21:18,971 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-09-18 12:21:21,756 WARN L191 SmtUtils]: Spent 2.78 s on a formula simplification. DAG size of input: 356 DAG size of output: 302 [2019-09-18 12:21:24,909 WARN L191 SmtUtils]: Spent 2.68 s on a formula simplification that was a NOOP. DAG size: 681 [2019-09-18 12:21:33,831 WARN L191 SmtUtils]: Spent 8.90 s on a formula simplification. DAG size of input: 926 DAG size of output: 328 [2019-09-18 12:21:34,326 WARN L191 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2019-09-18 12:21:37,510 WARN L191 SmtUtils]: Spent 3.18 s on a formula simplification. DAG size of input: 402 DAG size of output: 325 [2019-09-18 12:21:42,763 WARN L191 SmtUtils]: Spent 3.16 s on a formula simplification that was a NOOP. DAG size: 739 [2019-09-18 12:21:57,221 WARN L191 SmtUtils]: Spent 14.43 s on a formula simplification. DAG size of input: 913 DAG size of output: 361 [2019-09-18 12:21:57,777 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-09-18 12:22:01,644 WARN L191 SmtUtils]: Spent 3.86 s on a formula simplification. DAG size of input: 426 DAG size of output: 360 [2019-09-18 12:22:07,448 WARN L191 SmtUtils]: Spent 3.58 s on a formula simplification that was a NOOP. DAG size: 797 [2019-09-18 12:22:22,954 WARN L191 SmtUtils]: Spent 15.48 s on a formula simplification. DAG size of input: 938 DAG size of output: 380 [2019-09-18 12:22:23,545 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2019-09-18 12:22:27,687 WARN L191 SmtUtils]: Spent 4.13 s on a formula simplification. DAG size of input: 443 DAG size of output: 377 [2019-09-18 12:22:34,511 WARN L191 SmtUtils]: Spent 4.06 s on a formula simplification that was a NOOP. DAG size: 855 [2019-09-18 12:22:53,882 WARN L191 SmtUtils]: Spent 19.33 s on a formula simplification. DAG size of input: 1100 DAG size of output: 402 [2019-09-18 12:22:54,577 WARN L191 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2019-09-18 12:22:59,308 WARN L191 SmtUtils]: Spent 4.72 s on a formula simplification. DAG size of input: 489 DAG size of output: 403 [2019-09-18 12:23:07,240 WARN L191 SmtUtils]: Spent 4.63 s on a formula simplification that was a NOOP. DAG size: 913 [2019-09-18 12:23:29,970 WARN L191 SmtUtils]: Spent 22.70 s on a formula simplification. DAG size of input: 1089 DAG size of output: 420 [2019-09-18 12:23:30,675 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2019-09-18 12:23:35,655 WARN L191 SmtUtils]: Spent 4.97 s on a formula simplification. DAG size of input: 495 DAG size of output: 417 [2019-09-18 12:23:40,243 WARN L191 SmtUtils]: Spent 4.58 s on a formula simplification. DAG size of input: 424 DAG size of output: 422 [2019-09-18 12:23:42,504 WARN L191 SmtUtils]: Spent 2.26 s on a formula simplification that was a NOOP. DAG size: 422 [2019-09-18 12:23:42,515 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 430 for LOIs [2019-09-18 12:23:42,570 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 430 for LOIs [2019-09-18 12:23:42,574 INFO L199 IcfgInterpreter]: Interpreting procedure test with input of size 430 for LOIs [2019-09-18 12:23:57,583 WARN L191 SmtUtils]: Spent 14.74 s on a formula simplification. DAG size of input: 447 DAG size of output: 446 [2019-09-18 12:24:04,773 WARN L191 SmtUtils]: Spent 7.19 s on a formula simplification that was a NOOP. DAG size: 446 [2019-09-18 12:24:19,329 WARN L191 SmtUtils]: Spent 14.55 s on a formula simplification. DAG size of input: 447 DAG size of output: 446 [2019-09-18 12:24:26,502 WARN L191 SmtUtils]: Spent 7.17 s on a formula simplification that was a NOOP. DAG size: 446 [2019-09-18 12:24:41,130 WARN L191 SmtUtils]: Spent 14.63 s on a formula simplification. DAG size of input: 447 DAG size of output: 446 [2019-09-18 12:24:48,335 WARN L191 SmtUtils]: Spent 7.20 s on a formula simplification that was a NOOP. DAG size: 446 [2019-09-18 12:25:03,003 WARN L191 SmtUtils]: Spent 14.67 s on a formula simplification. DAG size of input: 447 DAG size of output: 446 [2019-09-18 12:25:10,215 WARN L191 SmtUtils]: Spent 7.21 s on a formula simplification that was a NOOP. DAG size: 446 [2019-09-18 12:25:24,885 WARN L191 SmtUtils]: Spent 14.67 s on a formula simplification. DAG size of input: 447 DAG size of output: 446 [2019-09-18 12:25:32,162 WARN L191 SmtUtils]: Spent 7.28 s on a formula simplification that was a NOOP. DAG size: 446 [2019-09-18 12:25:46,736 WARN L191 SmtUtils]: Spent 14.57 s on a formula simplification. DAG size of input: 447 DAG size of output: 446 [2019-09-18 12:25:53,988 WARN L191 SmtUtils]: Spent 7.25 s on a formula simplification that was a NOOP. DAG size: 446 [2019-09-18 12:26:17,933 WARN L191 SmtUtils]: Spent 23.88 s on a formula simplification. DAG size of input: 457 DAG size of output: 457 [2019-09-18 12:26:29,770 WARN L191 SmtUtils]: Spent 11.84 s on a formula simplification that was a NOOP. DAG size: 457 [2019-09-18 12:26:52,640 WARN L191 SmtUtils]: Spent 21.90 s on a formula simplification. DAG size of input: 464 DAG size of output: 455 [2019-09-18 12:26:59,837 WARN L191 SmtUtils]: Spent 7.20 s on a formula simplification that was a NOOP. DAG size: 455 [2019-09-18 12:27:14,192 WARN L191 SmtUtils]: Spent 14.35 s on a formula simplification. DAG size of input: 455 DAG size of output: 454 [2019-09-18 12:27:21,328 WARN L191 SmtUtils]: Spent 7.13 s on a formula simplification that was a NOOP. DAG size: 454 [2019-09-18 12:27:33,135 WARN L191 SmtUtils]: Spent 11.79 s on a formula simplification that was a NOOP. DAG size: 465 [2019-09-18 12:27:44,925 WARN L191 SmtUtils]: Spent 11.79 s on a formula simplification that was a NOOP. DAG size: 465 [2019-09-18 12:28:22,333 WARN L191 SmtUtils]: Spent 37.35 s on a formula simplification. DAG size of input: 475 DAG size of output: 472 [2019-09-18 12:28:40,835 WARN L191 SmtUtils]: Spent 18.50 s on a formula simplification that was a NOOP. DAG size: 472 [2019-09-18 12:29:00,917 WARN L191 SmtUtils]: Spent 19.80 s on a formula simplification. DAG size of input: 467 DAG size of output: 450 [2019-09-18 12:29:03,463 WARN L191 SmtUtils]: Spent 2.55 s on a formula simplification that was a NOOP. DAG size: 450 [2019-09-18 12:29:06,061 WARN L191 SmtUtils]: Spent 2.59 s on a formula simplification that was a NOOP. DAG size: 451 [2019-09-18 12:29:08,651 WARN L191 SmtUtils]: Spent 2.59 s on a formula simplification that was a NOOP. DAG size: 451 [2019-09-18 12:30:05,186 WARN L191 SmtUtils]: Spent 56.47 s on a formula simplification. DAG size of input: 474 DAG size of output: 470 [2019-09-18 12:30:24,075 WARN L191 SmtUtils]: Spent 18.89 s on a formula simplification that was a NOOP. DAG size: 469 [2019-09-18 12:30:43,373 WARN L191 SmtUtils]: Spent 19.25 s on a formula simplification. DAG size of input: 476 DAG size of output: 458 [2019-09-18 12:30:52,839 WARN L191 SmtUtils]: Spent 9.46 s on a formula simplification that was a NOOP. DAG size: 458 [2019-09-18 12:31:14,730 WARN L191 SmtUtils]: Spent 21.83 s on a formula simplification. DAG size of input: 466 DAG size of output: 453 [2019-09-18 12:31:21,850 WARN L191 SmtUtils]: Spent 7.12 s on a formula simplification that was a NOOP. DAG size: 453 [2019-09-18 12:31:50,206 WARN L191 SmtUtils]: Spent 28.32 s on a formula simplification. DAG size of input: 461 DAG size of output: 457 [2019-09-18 12:31:59,616 WARN L191 SmtUtils]: Spent 9.41 s on a formula simplification that was a NOOP. DAG size: 457 [2019-09-18 12:32:21,871 WARN L191 SmtUtils]: Spent 22.18 s on a formula simplification. DAG size of input: 470 DAG size of output: 457 [2019-09-18 12:32:29,099 WARN L191 SmtUtils]: Spent 7.23 s on a formula simplification that was a NOOP. DAG size: 457 [2019-09-18 12:32:36,278 WARN L191 SmtUtils]: Spent 7.17 s on a formula simplification that was a NOOP. DAG size: 458 [2019-09-18 12:32:43,559 WARN L191 SmtUtils]: Spent 7.28 s on a formula simplification that was a NOOP. DAG size: 458 [2019-09-18 12:33:05,133 WARN L191 SmtUtils]: Spent 21.56 s on a formula simplification. DAG size of input: 460 DAG size of output: 456 [2019-09-18 12:33:12,352 WARN L191 SmtUtils]: Spent 7.22 s on a formula simplification that was a NOOP. DAG size: 456