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 SequenceOfStatements --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.intern.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_DDA -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product17.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-18 04:41:06,358 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-18 04:41:06,360 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-18 04:41:06,371 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-18 04:41:06,372 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-18 04:41:06,373 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-18 04:41:06,374 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-18 04:41:06,376 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-18 04:41:06,378 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-18 04:41:06,379 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-18 04:41:06,383 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-18 04:41:06,384 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-18 04:41:06,385 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-18 04:41:06,388 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-18 04:41:06,389 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-18 04:41:06,391 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-18 04:41:06,396 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-18 04:41:06,397 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-18 04:41:06,402 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-18 04:41:06,406 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-18 04:41:06,407 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-18 04:41:06,409 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-18 04:41:06,410 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-18 04:41:06,411 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-18 04:41:06,415 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-18 04:41:06,415 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-18 04:41:06,415 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-18 04:41:06,418 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-18 04:41:06,418 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-18 04:41:06,419 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-18 04:41:06,419 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-18 04:41:06,421 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-18 04:41:06,422 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-18 04:41:06,424 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-18 04:41:06,427 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-18 04:41:06,427 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-18 04:41:06,428 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-18 04:41:06,429 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-18 04:41:06,429 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-18 04:41:06,430 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-18 04:41:06,433 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-18 04:41:06,434 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 04:41:06,460 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-18 04:41:06,460 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-18 04:41:06,463 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-18 04:41:06,464 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-18 04:41:06,464 INFO L138 SettingsManager]: * Use SBE=true [2019-09-18 04:41:06,464 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-18 04:41:06,464 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-18 04:41:06,464 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-18 04:41:06,465 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-18 04:41:06,465 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-18 04:41:06,466 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-18 04:41:06,466 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-18 04:41:06,466 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-18 04:41:06,467 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-18 04:41:06,467 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-18 04:41:06,468 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-18 04:41:06,468 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-18 04:41:06,468 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-18 04:41:06,468 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-18 04:41:06,469 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-18 04:41:06,469 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-18 04:41:06,469 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-18 04:41:06,469 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-18 04:41:06,470 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-18 04:41:06,470 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-18 04:41:06,470 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-18 04:41:06,470 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-18 04:41:06,470 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-18 04:41:06,471 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 -> SequenceOfStatements 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 04:41:06,515 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-18 04:41:06,532 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-18 04:41:06,536 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-18 04:41:06,538 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-18 04:41:06,538 INFO L275 PluginConnector]: CDTParser initialized [2019-09-18 04:41:06,539 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product17.cil.c [2019-09-18 04:41:06,609 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f883e4da8/5c263fbbd51b4a11897181ce6fc6136e/FLAGf15383389 [2019-09-18 04:41:07,112 INFO L306 CDTParser]: Found 1 translation units. [2019-09-18 04:41:07,112 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product17.cil.c [2019-09-18 04:41:07,124 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f883e4da8/5c263fbbd51b4a11897181ce6fc6136e/FLAGf15383389 [2019-09-18 04:41:07,440 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f883e4da8/5c263fbbd51b4a11897181ce6fc6136e [2019-09-18 04:41:07,450 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-18 04:41:07,451 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-18 04:41:07,452 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-18 04:41:07,452 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-18 04:41:07,456 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-18 04:41:07,457 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 04:41:07" (1/1) ... [2019-09-18 04:41:07,460 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2499351f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 04:41:07, skipping insertion in model container [2019-09-18 04:41:07,460 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 04:41:07" (1/1) ... [2019-09-18 04:41:07,468 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-18 04:41:07,533 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-18 04:41:08,128 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-18 04:41:08,152 INFO L188 MainTranslator]: Completed pre-run [2019-09-18 04:41:08,228 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-18 04:41:08,258 INFO L192 MainTranslator]: Completed translation [2019-09-18 04:41:08,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 04:41:08 WrapperNode [2019-09-18 04:41:08,258 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-18 04:41:08,259 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-18 04:41:08,259 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-18 04:41:08,259 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-18 04:41:08,269 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 04:41:08" (1/1) ... [2019-09-18 04:41:08,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 04:41:08" (1/1) ... [2019-09-18 04:41:08,287 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 04:41:08" (1/1) ... [2019-09-18 04:41:08,288 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 04:41:08" (1/1) ... [2019-09-18 04:41:08,314 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 04:41:08" (1/1) ... [2019-09-18 04:41:08,324 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 04:41:08" (1/1) ... [2019-09-18 04:41:08,329 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 04:41:08" (1/1) ... [2019-09-18 04:41:08,337 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-18 04:41:08,338 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-18 04:41:08,338 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-18 04:41:08,338 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-18 04:41:08,339 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 04:41:08" (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 04:41:08,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-18 04:41:08,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-18 04:41:08,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-18 04:41:08,406 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-09-18 04:41:08,407 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-18 04:41:08,407 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-18 04:41:08,407 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-18 04:41:08,407 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-18 04:41:08,407 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-18 04:41:08,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-18 04:41:08,408 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-18 04:41:08,408 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-18 04:41:08,408 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-18 04:41:08,408 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-18 04:41:08,409 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-18 04:41:08,409 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-18 04:41:08,409 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-18 04:41:08,409 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-18 04:41:08,409 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-18 04:41:08,410 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-18 04:41:08,410 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-18 04:41:08,410 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-18 04:41:08,410 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-18 04:41:08,410 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-18 04:41:08,410 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-18 04:41:08,411 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-18 04:41:08,411 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-18 04:41:08,411 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-18 04:41:08,411 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-18 04:41:08,411 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-18 04:41:08,411 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-18 04:41:08,412 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-18 04:41:08,412 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-18 04:41:08,412 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-18 04:41:08,412 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-18 04:41:08,412 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-18 04:41:08,412 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-18 04:41:08,413 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-18 04:41:08,413 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-18 04:41:08,413 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-18 04:41:08,413 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-18 04:41:08,413 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-18 04:41:08,413 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-18 04:41:08,413 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-09-18 04:41:08,414 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-18 04:41:08,414 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-18 04:41:08,414 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-18 04:41:08,414 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-18 04:41:08,414 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-18 04:41:08,414 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-18 04:41:08,414 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-18 04:41:08,415 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-18 04:41:08,415 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-18 04:41:08,415 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-18 04:41:08,415 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-18 04:41:08,415 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-18 04:41:08,415 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-18 04:41:08,415 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-18 04:41:08,416 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-18 04:41:08,416 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-18 04:41:08,416 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-18 04:41:08,416 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-18 04:41:08,416 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-18 04:41:08,416 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-18 04:41:08,417 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-18 04:41:08,417 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-18 04:41:08,417 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-18 04:41:08,417 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-18 04:41:08,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-18 04:41:08,417 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-18 04:41:08,417 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-18 04:41:08,418 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-18 04:41:08,418 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-18 04:41:08,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-18 04:41:08,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-18 04:41:08,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-18 04:41:08,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-18 04:41:08,419 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-18 04:41:08,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-18 04:41:08,419 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-18 04:41:08,419 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-18 04:41:08,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-18 04:41:08,419 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-18 04:41:08,419 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-18 04:41:08,420 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-18 04:41:08,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-18 04:41:08,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-18 04:41:08,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-18 04:41:09,444 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-18 04:41:09,444 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-18 04:41:09,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 04:41:09 BoogieIcfgContainer [2019-09-18 04:41:09,446 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-18 04:41:09,447 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-18 04:41:09,447 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-18 04:41:09,447 INFO L275 PluginConnector]: Sifa initialized [2019-09-18 04:41:09,449 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 04:41:09" (1/1) ... [2019-09-18 04:41:09,449 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 04:41:09,495 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-18 04:41:09,496 INFO L169 IcfgInterpreter]: Building call graph [2019-09-18 04:41:09,504 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-18 04:41:09,513 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-18 04:41:09,514 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-18 04:41:27,424 WARN L191 SmtUtils]: Spent 10.61 s on a formula simplification that was a NOOP. DAG size: 464 [2019-09-18 04:41:29,213 WARN L191 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-09-18 04:41:33,005 WARN L191 SmtUtils]: Spent 3.78 s on a formula simplification. DAG size of input: 472 DAG size of output: 422 [2019-09-18 04:41:34,840 WARN L191 SmtUtils]: Spent 1.83 s on a formula simplification that was a NOOP. DAG size: 422 [2019-09-18 04:41:36,706 WARN L191 SmtUtils]: Spent 1.86 s on a formula simplification that was a NOOP. DAG size: 422 [2019-09-18 04:41:36,720 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 428 for LOIs [2019-09-18 04:41:36,790 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 428 for LOIs [2019-09-18 04:41:36,795 INFO L199 IcfgInterpreter]: Interpreting procedure test with input of size 428 for LOIs [2019-09-18 04:41:53,418 WARN L191 SmtUtils]: Spent 16.44 s on a formula simplification. DAG size of input: 453 DAG size of output: 447 [2019-09-18 04:41:58,869 WARN L191 SmtUtils]: Spent 5.45 s on a formula simplification that was a NOOP. DAG size: 447 [2019-09-18 04:42:10,039 WARN L191 SmtUtils]: Spent 11.15 s on a formula simplification. DAG size of input: 458 DAG size of output: 449 [2019-09-18 04:42:15,535 WARN L191 SmtUtils]: Spent 5.50 s on a formula simplification that was a NOOP. DAG size: 449 [2019-09-18 04:42:26,524 WARN L191 SmtUtils]: Spent 10.99 s on a formula simplification. DAG size of input: 458 DAG size of output: 449 [2019-09-18 04:42:31,922 WARN L191 SmtUtils]: Spent 5.40 s on a formula simplification that was a NOOP. DAG size: 449 [2019-09-18 04:42:40,926 WARN L191 SmtUtils]: Spent 9.00 s on a formula simplification that was a NOOP. DAG size: 461 [2019-09-18 04:42:49,983 WARN L191 SmtUtils]: Spent 9.05 s on a formula simplification that was a NOOP. DAG size: 461 [2019-09-18 04:43:08,204 WARN L191 SmtUtils]: Spent 18.22 s on a formula simplification. DAG size of input: 462 DAG size of output: 458 [2019-09-18 04:43:17,241 WARN L191 SmtUtils]: Spent 9.04 s on a formula simplification that was a NOOP. DAG size: 457 [2019-09-18 04:43:35,904 WARN L191 SmtUtils]: Spent 18.05 s on a formula simplification. DAG size of input: 467 DAG size of output: 461 [2019-09-18 04:43:44,894 WARN L191 SmtUtils]: Spent 8.99 s on a formula simplification that was a NOOP. DAG size: 461 [2019-09-18 04:43:55,447 WARN L191 SmtUtils]: Spent 10.53 s on a formula simplification that was a NOOP. DAG size: 465 [2019-09-18 04:44:05,987 WARN L191 SmtUtils]: Spent 10.54 s on a formula simplification that was a NOOP. DAG size: 465 [2019-09-18 04:44:18,818 WARN L191 SmtUtils]: Spent 12.64 s on a formula simplification. DAG size of input: 475 DAG size of output: 448 [2019-09-18 04:44:20,730 WARN L191 SmtUtils]: Spent 1.91 s on a formula simplification that was a NOOP. DAG size: 448 [2019-09-18 04:44:33,631 WARN L191 SmtUtils]: Spent 12.87 s on a formula simplification. DAG size of input: 471 DAG size of output: 449 [2019-09-18 04:44:35,557 WARN L191 SmtUtils]: Spent 1.93 s on a formula simplification that was a NOOP. DAG size: 449 [2019-09-18 04:44:48,641 WARN L191 SmtUtils]: Spent 13.08 s on a formula simplification. DAG size of input: 471 DAG size of output: 449 [2019-09-18 04:44:50,681 WARN L191 SmtUtils]: Spent 2.04 s on a formula simplification that was a NOOP. DAG size: 449 [2019-09-18 04:44:56,406 WARN L191 SmtUtils]: Spent 5.72 s on a formula simplification that was a NOOP. DAG size: 456 [2019-09-18 04:45:02,110 WARN L191 SmtUtils]: Spent 5.70 s on a formula simplification that was a NOOP. DAG size: 456 [2019-09-18 04:45:13,256 WARN L191 SmtUtils]: Spent 11.14 s on a formula simplification. DAG size of input: 457 DAG size of output: 454 [2019-09-18 04:45:18,787 WARN L191 SmtUtils]: Spent 5.53 s on a formula simplification that was a NOOP. DAG size: 454 [2019-09-18 04:45:29,901 WARN L191 SmtUtils]: Spent 10.86 s on a formula simplification. DAG size of input: 462 DAG size of output: 456 [2019-09-18 04:45:35,371 WARN L191 SmtUtils]: Spent 5.47 s on a formula simplification that was a NOOP. DAG size: 456 [2019-09-18 04:45:49,535 WARN L191 SmtUtils]: Spent 14.14 s on a formula simplification. DAG size of input: 471 DAG size of output: 461 [2019-09-18 04:45:56,457 WARN L191 SmtUtils]: Spent 6.92 s on a formula simplification that was a NOOP. DAG size: 461 [2019-09-18 04:46:07,550 WARN L191 SmtUtils]: Spent 10.96 s on a formula simplification. DAG size of input: 473 DAG size of output: 448 [2019-09-18 04:46:09,515 WARN L191 SmtUtils]: Spent 1.96 s on a formula simplification that was a NOOP. DAG size: 448 [2019-09-18 04:46:15,182 WARN L191 SmtUtils]: Spent 5.64 s on a formula simplification. DAG size of input: 468 DAG size of output: 449 [2019-09-18 04:46:17,100 WARN L191 SmtUtils]: Spent 1.92 s on a formula simplification that was a NOOP. DAG size: 449 [2019-09-18 04:46:22,658 WARN L191 SmtUtils]: Spent 5.56 s on a formula simplification. DAG size of input: 468 DAG size of output: 449 [2019-09-18 04:46:24,554 WARN L191 SmtUtils]: Spent 1.90 s on a formula simplification that was a NOOP. DAG size: 449 [2019-09-18 04:46:30,030 WARN L191 SmtUtils]: Spent 5.47 s on a formula simplification that was a NOOP. DAG size: 456 [2019-09-18 04:46:35,493 WARN L191 SmtUtils]: Spent 5.46 s on a formula simplification that was a NOOP. DAG size: 456 [2019-09-18 04:46:46,446 WARN L191 SmtUtils]: Spent 10.95 s on a formula simplification. DAG size of input: 457 DAG size of output: 454 [2019-09-18 04:46:51,945 WARN L191 SmtUtils]: Spent 5.50 s on a formula simplification that was a NOOP. DAG size: 454 [2019-09-18 04:47:02,955 WARN L191 SmtUtils]: Spent 11.00 s on a formula simplification. DAG size of input: 462 DAG size of output: 456 [2019-09-18 04:47:08,437 WARN L191 SmtUtils]: Spent 5.48 s on a formula simplification that was a NOOP. DAG size: 456 [2019-09-18 04:47:14,133 WARN L191 SmtUtils]: Spent 5.43 s on a formula simplification. DAG size of input: 469 DAG size of output: 448 [2019-09-18 04:47:16,019 WARN L191 SmtUtils]: Spent 1.88 s on a formula simplification that was a NOOP. DAG size: 448 [2019-09-18 04:47:21,824 WARN L191 SmtUtils]: Spent 5.78 s on a formula simplification. DAG size of input: 464 DAG size of output: 449 [2019-09-18 04:47:23,754 WARN L191 SmtUtils]: Spent 1.93 s on a formula simplification that was a NOOP. DAG size: 449 [2019-09-18 04:47:29,555 WARN L191 SmtUtils]: Spent 5.80 s on a formula simplification. DAG size of input: 464 DAG size of output: 449 [2019-09-18 04:47:31,504 WARN L191 SmtUtils]: Spent 1.95 s on a formula simplification that was a NOOP. DAG size: 449 [2019-09-18 04:47:36,880 WARN L191 SmtUtils]: Spent 5.37 s on a formula simplification that was a NOOP. DAG size: 456 [2019-09-18 04:47:42,359 WARN L191 SmtUtils]: Spent 5.48 s on a formula simplification that was a NOOP. DAG size: 456 [2019-09-18 04:47:53,899 WARN L191 SmtUtils]: Spent 11.54 s on a formula simplification. DAG size of input: 457 DAG size of output: 454 [2019-09-18 04:47:59,588 WARN L191 SmtUtils]: Spent 5.69 s on a formula simplification that was a NOOP. DAG size: 454 [2019-09-18 04:48:13,515 WARN L191 SmtUtils]: Spent 13.71 s on a formula simplification. DAG size of input: 471 DAG size of output: 448 [2019-09-18 04:48:15,457 WARN L191 SmtUtils]: Spent 1.94 s on a formula simplification that was a NOOP. DAG size: 448 [2019-09-18 04:48:23,372 WARN L191 SmtUtils]: Spent 7.89 s on a formula simplification. DAG size of input: 466 DAG size of output: 449 [2019-09-18 04:48:25,316 WARN L191 SmtUtils]: Spent 1.94 s on a formula simplification that was a NOOP. DAG size: 449 [2019-09-18 04:48:33,309 WARN L191 SmtUtils]: Spent 7.99 s on a formula simplification. DAG size of input: 466 DAG size of output: 449 [2019-09-18 04:48:35,233 WARN L191 SmtUtils]: Spent 1.92 s on a formula simplification that was a NOOP. DAG size: 449 [2019-09-18 04:48:40,726 WARN L191 SmtUtils]: Spent 5.49 s on a formula simplification that was a NOOP. DAG size: 456 [2019-09-18 04:48:46,270 WARN L191 SmtUtils]: Spent 5.54 s on a formula simplification that was a NOOP. DAG size: 456 [2019-09-18 04:48:57,269 WARN L191 SmtUtils]: Spent 11.00 s on a formula simplification. DAG size of input: 457 DAG size of output: 454 [2019-09-18 04:49:02,757 WARN L191 SmtUtils]: Spent 5.49 s on a formula simplification that was a NOOP. DAG size: 454 [2019-09-18 04:49:13,611 WARN L191 SmtUtils]: Spent 10.84 s on a formula simplification. DAG size of input: 462 DAG size of output: 456 [2019-09-18 04:49:19,076 WARN L191 SmtUtils]: Spent 5.46 s on a formula simplification that was a NOOP. DAG size: 456 [2019-09-18 04:49:30,206 WARN L191 SmtUtils]: Spent 11.11 s on a formula simplification. DAG size of input: 472 DAG size of output: 458 [2019-09-18 04:49:35,735 WARN L191 SmtUtils]: Spent 5.53 s on a formula simplification that was a NOOP. DAG size: 458 [2019-09-18 04:49:41,461 WARN L191 SmtUtils]: Spent 5.60 s on a formula simplification. DAG size of input: 464 DAG size of output: 447 [2019-09-18 04:49:43,480 WARN L191 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 447 [2019-09-18 04:49:49,351 WARN L191 SmtUtils]: Spent 5.85 s on a formula simplification. DAG size of input: 459 DAG size of output: 448 [2019-09-18 04:49:51,329 WARN L191 SmtUtils]: Spent 1.98 s on a formula simplification that was a NOOP. DAG size: 448 [2019-09-18 04:49:57,292 WARN L191 SmtUtils]: Spent 5.96 s on a formula simplification. DAG size of input: 459 DAG size of output: 448 [2019-09-18 04:49:59,266 WARN L191 SmtUtils]: Spent 1.97 s on a formula simplification that was a NOOP. DAG size: 448 [2019-09-18 04:50:04,771 WARN L191 SmtUtils]: Spent 5.50 s on a formula simplification that was a NOOP. DAG size: 456 [2019-09-18 04:50:10,325 WARN L191 SmtUtils]: Spent 5.55 s on a formula simplification that was a NOOP. DAG size: 456 [2019-09-18 04:50:21,362 WARN L191 SmtUtils]: Spent 11.04 s on a formula simplification. DAG size of input: 457 DAG size of output: 454 [2019-09-18 04:50:26,810 WARN L191 SmtUtils]: Spent 5.45 s on a formula simplification that was a NOOP. DAG size: 454 [2019-09-18 04:50:37,694 WARN L191 SmtUtils]: Spent 10.87 s on a formula simplification. DAG size of input: 462 DAG size of output: 456 [2019-09-18 04:50:43,083 WARN L191 SmtUtils]: Spent 5.39 s on a formula simplification that was a NOOP. DAG size: 456 [2019-09-18 04:50:53,788 WARN L191 SmtUtils]: Spent 10.69 s on a formula simplification. DAG size of input: 460 DAG size of output: 459 [2019-09-18 04:50:59,178 WARN L191 SmtUtils]: Spent 5.39 s on a formula simplification that was a NOOP. DAG size: 459 [2019-09-18 04:51:05,265 WARN L191 SmtUtils]: Spent 5.93 s on a formula simplification. DAG size of input: 462 DAG size of output: 447 [2019-09-18 04:51:07,239 WARN L191 SmtUtils]: Spent 1.97 s on a formula simplification that was a NOOP. DAG size: 447 [2019-09-18 04:51:13,248 WARN L191 SmtUtils]: Spent 6.01 s on a formula simplification. DAG size of input: 462 DAG size of output: 447 [2019-09-18 04:51:15,195 WARN L191 SmtUtils]: Spent 1.95 s on a formula simplification that was a NOOP. DAG size: 447 [2019-09-18 04:51:21,135 WARN L191 SmtUtils]: Spent 5.94 s on a formula simplification. DAG size of input: 462 DAG size of output: 447 [2019-09-18 04:51:23,111 WARN L191 SmtUtils]: Spent 1.97 s on a formula simplification that was a NOOP. DAG size: 447 [2019-09-18 04:51:29,109 WARN L191 SmtUtils]: Spent 6.00 s on a formula simplification. DAG size of input: 462 DAG size of output: 447 [2019-09-18 04:51:31,075 WARN L191 SmtUtils]: Spent 1.96 s on a formula simplification that was a NOOP. DAG size: 447 [2019-09-18 04:51:37,007 WARN L191 SmtUtils]: Spent 5.93 s on a formula simplification. DAG size of input: 462 DAG size of output: 447 [2019-09-18 04:51:38,963 WARN L191 SmtUtils]: Spent 1.95 s on a formula simplification that was a NOOP. DAG size: 447 [2019-09-18 04:51:44,867 WARN L191 SmtUtils]: Spent 5.90 s on a formula simplification. DAG size of input: 462 DAG size of output: 447 [2019-09-18 04:51:46,785 WARN L191 SmtUtils]: Spent 1.92 s on a formula simplification that was a NOOP. DAG size: 447 [2019-09-18 04:51:57,344 WARN L191 SmtUtils]: Spent 10.53 s on a formula simplification. DAG size of input: 474 DAG size of output: 457 [2019-09-18 04:52:02,534 WARN L191 SmtUtils]: Spent 5.19 s on a formula simplification that was a NOOP. DAG size: 457 [2019-09-18 04:52:13,217 WARN L191 SmtUtils]: Spent 10.57 s on a formula simplification. DAG size of input: 463 DAG size of output: 455 [2019-09-18 04:52:18,490 WARN L191 SmtUtils]: Spent 5.27 s on a formula simplification that was a NOOP. DAG size: 455 [2019-09-18 04:52:29,091 WARN L191 SmtUtils]: Spent 10.60 s on a formula simplification. DAG size of input: 463 DAG size of output: 455 [2019-09-18 04:52:34,317 WARN L191 SmtUtils]: Spent 5.22 s on a formula simplification that was a NOOP. DAG size: 455 [2019-09-18 04:52:44,935 WARN L191 SmtUtils]: Spent 10.62 s on a formula simplification. DAG size of input: 463 DAG size of output: 455 [2019-09-18 04:52:50,266 WARN L191 SmtUtils]: Spent 5.33 s on a formula simplification that was a NOOP. DAG size: 455 [2019-09-18 04:53:00,941 WARN L191 SmtUtils]: Spent 10.67 s on a formula simplification. DAG size of input: 463 DAG size of output: 455 [2019-09-18 04:53:06,259 WARN L191 SmtUtils]: Spent 5.32 s on a formula simplification that was a NOOP. DAG size: 455 [2019-09-18 04:53:16,844 WARN L191 SmtUtils]: Spent 10.58 s on a formula simplification. DAG size of input: 463 DAG size of output: 455 [2019-09-18 04:53:22,096 WARN L191 SmtUtils]: Spent 5.25 s on a formula simplification that was a NOOP. DAG size: 455 [2019-09-18 04:53:27,755 WARN L191 SmtUtils]: Spent 5.64 s on a formula simplification. DAG size of input: 464 DAG size of output: 449 [2019-09-18 04:53:29,825 WARN L191 SmtUtils]: Spent 2.07 s on a formula simplification that was a NOOP. DAG size: 449 [2019-09-18 04:53:35,507 WARN L191 SmtUtils]: Spent 5.68 s on a formula simplification. DAG size of input: 464 DAG size of output: 449 [2019-09-18 04:53:37,536 WARN L191 SmtUtils]: Spent 2.03 s on a formula simplification that was a NOOP. DAG size: 449 [2019-09-18 04:53:43,195 WARN L191 SmtUtils]: Spent 5.66 s on a formula simplification. DAG size of input: 464 DAG size of output: 449 [2019-09-18 04:53:45,193 WARN L191 SmtUtils]: Spent 2.00 s on a formula simplification that was a NOOP. DAG size: 449 [2019-09-18 04:53:50,844 WARN L191 SmtUtils]: Spent 5.65 s on a formula simplification. DAG size of input: 464 DAG size of output: 449 [2019-09-18 04:53:52,860 WARN L191 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 449 [2019-09-18 04:53:58,508 WARN L191 SmtUtils]: Spent 5.65 s on a formula simplification. DAG size of input: 464 DAG size of output: 449 [2019-09-18 04:54:00,512 WARN L191 SmtUtils]: Spent 2.00 s on a formula simplification that was a NOOP. DAG size: 449 [2019-09-18 04:54:11,607 WARN L191 SmtUtils]: Spent 11.09 s on a formula simplification. DAG size of input: 472 DAG size of output: 467 [2019-09-18 04:54:17,051 WARN L191 SmtUtils]: Spent 5.44 s on a formula simplification that was a NOOP. DAG size: 467