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 LoopFreeBlock --sifa.call.summarizer InterpretCallSummarizer --sifa.fluid SizeLimitFluid --sifa.intern.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_DDA -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product54.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-19 10:23:32,607 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-19 10:23:32,609 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-19 10:23:32,622 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-19 10:23:32,622 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-19 10:23:32,624 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-19 10:23:32,626 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-19 10:23:32,638 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-19 10:23:32,640 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-19 10:23:32,643 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-19 10:23:32,644 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-19 10:23:32,646 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-19 10:23:32,646 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-19 10:23:32,649 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-19 10:23:32,652 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-19 10:23:32,654 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-19 10:23:32,655 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-19 10:23:32,657 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-19 10:23:32,659 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-19 10:23:32,664 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-19 10:23:32,669 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-19 10:23:32,671 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-19 10:23:32,672 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-19 10:23:32,673 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-19 10:23:32,677 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-19 10:23:32,677 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-19 10:23:32,678 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-19 10:23:32,680 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-19 10:23:32,682 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-19 10:23:32,682 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-19 10:23:32,683 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-19 10:23:32,685 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-19 10:23:32,685 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-19 10:23:32,686 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-19 10:23:32,688 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-19 10:23:32,688 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-19 10:23:32,689 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-19 10:23:32,689 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-19 10:23:32,689 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-19 10:23:32,690 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-19 10:23:32,691 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-19 10:23:32,692 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 [2019-09-19 10:23:32,715 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-19 10:23:32,715 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-19 10:23:32,716 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-19 10:23:32,717 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-19 10:23:32,717 INFO L138 SettingsManager]: * Use SBE=true [2019-09-19 10:23:32,717 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-19 10:23:32,717 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-19 10:23:32,718 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-19 10:23:32,718 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-19 10:23:32,718 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-19 10:23:32,718 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-19 10:23:32,718 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-19 10:23:32,719 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-19 10:23:32,719 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-19 10:23:32,719 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-19 10:23:32,719 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-19 10:23:32,719 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-19 10:23:32,720 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-19 10:23:32,720 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-19 10:23:32,720 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-19 10:23:32,720 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-19 10:23:32,721 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-19 10:23:32,721 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-19 10:23:32,721 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-19 10:23:32,721 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-19 10:23:32,721 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-19 10:23:32,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-19 10:23:32,722 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-19 10:23:32,722 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 -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> InterpretCallSummarizer 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 [2019-09-19 10:23:32,767 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-19 10:23:32,782 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-19 10:23:32,785 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-19 10:23:32,789 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-19 10:23:32,789 INFO L275 PluginConnector]: CDTParser initialized [2019-09-19 10:23:32,790 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product54.cil.c [2019-09-19 10:23:32,858 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45e654bca/be91d90601ac4b89a3e47318f155cf6d/FLAG2f5d5cf26 [2019-09-19 10:23:33,376 INFO L306 CDTParser]: Found 1 translation units. [2019-09-19 10:23:33,377 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product54.cil.c [2019-09-19 10:23:33,392 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45e654bca/be91d90601ac4b89a3e47318f155cf6d/FLAG2f5d5cf26 [2019-09-19 10:23:33,667 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45e654bca/be91d90601ac4b89a3e47318f155cf6d [2019-09-19 10:23:33,677 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-19 10:23:33,678 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-19 10:23:33,679 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-19 10:23:33,679 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-19 10:23:33,682 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-19 10:23:33,683 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 10:23:33" (1/1) ... [2019-09-19 10:23:33,685 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b9c1821 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:23:33, skipping insertion in model container [2019-09-19 10:23:33,685 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 10:23:33" (1/1) ... [2019-09-19 10:23:33,691 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-19 10:23:33,750 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-19 10:23:34,158 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-19 10:23:34,184 INFO L188 MainTranslator]: Completed pre-run [2019-09-19 10:23:34,281 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-19 10:23:34,319 INFO L192 MainTranslator]: Completed translation [2019-09-19 10:23:34,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:23:34 WrapperNode [2019-09-19 10:23:34,319 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-19 10:23:34,320 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-19 10:23:34,320 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-19 10:23:34,321 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-19 10:23:34,334 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:23:34" (1/1) ... [2019-09-19 10:23:34,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:23:34" (1/1) ... [2019-09-19 10:23:34,364 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:23:34" (1/1) ... [2019-09-19 10:23:34,364 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:23:34" (1/1) ... [2019-09-19 10:23:34,421 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:23:34" (1/1) ... [2019-09-19 10:23:34,435 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:23:34" (1/1) ... [2019-09-19 10:23:34,439 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:23:34" (1/1) ... [2019-09-19 10:23:34,455 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-19 10:23:34,458 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-19 10:23:34,458 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-19 10:23:34,459 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-19 10:23:34,460 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:23:34" (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 [2019-09-19 10:23:34,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-19 10:23:34,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-19 10:23:34,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-19 10:23:34,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-09-19 10:23:34,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-09-19 10:23:34,538 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-09-19 10:23:34,538 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-19 10:23:34,538 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-19 10:23:34,539 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-19 10:23:34,539 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-19 10:23:34,539 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-19 10:23:34,540 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-19 10:23:34,540 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-19 10:23:34,540 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-19 10:23:34,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-19 10:23:34,541 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-19 10:23:34,543 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-19 10:23:34,543 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-19 10:23:34,543 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-19 10:23:34,544 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-19 10:23:34,544 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-19 10:23:34,544 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-19 10:23:34,544 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-19 10:23:34,544 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2019-09-19 10:23:34,544 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-19 10:23:34,545 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-19 10:23:34,545 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-19 10:23:34,545 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-19 10:23:34,545 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-19 10:23:34,546 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-19 10:23:34,546 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-19 10:23:34,546 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-19 10:23:34,546 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-19 10:23:34,547 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-19 10:23:34,547 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-19 10:23:34,547 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-19 10:23:34,547 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-19 10:23:34,547 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-19 10:23:34,547 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-19 10:23:34,547 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-19 10:23:34,548 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-19 10:23:34,548 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-19 10:23:34,548 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-19 10:23:34,548 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-19 10:23:34,548 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-19 10:23:34,548 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-19 10:23:34,549 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-19 10:23:34,549 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-19 10:23:34,549 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-19 10:23:34,549 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-19 10:23:34,549 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-09-19 10:23:34,549 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-09-19 10:23:34,549 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-09-19 10:23:34,550 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-19 10:23:34,550 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-19 10:23:34,550 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-19 10:23:34,550 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-19 10:23:34,551 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-19 10:23:34,551 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-19 10:23:34,551 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-19 10:23:34,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-19 10:23:34,552 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-19 10:23:34,552 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-19 10:23:34,552 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-19 10:23:34,553 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-19 10:23:34,553 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-19 10:23:34,553 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-19 10:23:34,553 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-19 10:23:34,553 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-19 10:23:34,553 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-19 10:23:34,554 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-19 10:23:34,554 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-19 10:23:34,554 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-19 10:23:34,555 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-19 10:23:34,555 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-19 10:23:34,555 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-19 10:23:34,556 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-19 10:23:34,556 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-19 10:23:34,557 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-19 10:23:34,557 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-19 10:23:34,558 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2019-09-19 10:23:34,558 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-19 10:23:34,558 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-19 10:23:34,558 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-19 10:23:34,558 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-19 10:23:34,558 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-19 10:23:34,559 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-19 10:23:34,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-19 10:23:34,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-19 10:23:34,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-19 10:23:34,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-19 10:23:34,560 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-19 10:23:34,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-19 10:23:34,561 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-19 10:23:34,561 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-19 10:23:34,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-19 10:23:34,561 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-19 10:23:34,561 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-19 10:23:34,561 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-19 10:23:34,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-19 10:23:34,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-19 10:23:34,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-19 10:23:36,252 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-19 10:23:36,252 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-19 10:23:36,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 10:23:36 BoogieIcfgContainer [2019-09-19 10:23:36,254 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-19 10:23:36,254 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-19 10:23:36,254 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-19 10:23:36,255 INFO L275 PluginConnector]: Sifa initialized [2019-09-19 10:23:36,256 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 10:23:36" (1/1) ... [2019-09-19 10:23:36,256 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=InterpretCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ Simplification Technique=SIMPLIFY_DDA ♦ Intern Fluid=SizeLimitFluid [2019-09-19 10:23:36,283 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-19 10:23:36,285 INFO L169 IcfgInterpreter]: Building call graph [2019-09-19 10:23:36,304 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-19 10:23:36,315 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-19 10:23:36,316 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-19 10:23:49,409 WARN L191 SmtUtils]: Spent 13.01 s on a formula simplification that was a NOOP. DAG size: 443 [2019-09-19 10:24:01,717 WARN L191 SmtUtils]: Spent 12.30 s on a formula simplification that was a NOOP. DAG size: 443 [2019-09-19 10:24:24,499 WARN L191 SmtUtils]: Spent 14.17 s on a formula simplification that was a NOOP. DAG size: 466 [2019-09-19 10:24:26,198 WARN L191 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-09-19 10:24:30,006 WARN L191 SmtUtils]: Spent 3.80 s on a formula simplification. DAG size of input: 474 DAG size of output: 424 [2019-09-19 10:24:30,015 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 434 for LOIs [2019-09-19 10:24:31,724 WARN L191 SmtUtils]: Spent 1.70 s on a formula simplification that was a NOOP. DAG size: 424 [2019-09-19 10:24:33,423 WARN L191 SmtUtils]: Spent 1.70 s on a formula simplification that was a NOOP. DAG size: 424 [2019-09-19 10:24:35,111 WARN L191 SmtUtils]: Spent 1.68 s on a formula simplification that was a NOOP. DAG size: 424 [2019-09-19 10:24:36,836 WARN L191 SmtUtils]: Spent 1.72 s on a formula simplification that was a NOOP. DAG size: 424 [2019-09-19 10:24:38,589 WARN L191 SmtUtils]: Spent 1.75 s on a formula simplification that was a NOOP. DAG size: 428 [2019-09-19 10:24:40,285 WARN L191 SmtUtils]: Spent 1.69 s on a formula simplification that was a NOOP. DAG size: 428 [2019-09-19 10:24:41,995 WARN L191 SmtUtils]: Spent 1.69 s on a formula simplification that was a NOOP. DAG size: 424 [2019-09-19 10:24:43,715 WARN L191 SmtUtils]: Spent 1.72 s on a formula simplification that was a NOOP. DAG size: 424 [2019-09-19 10:24:43,722 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 434 for LOIs [2019-09-19 10:24:45,509 WARN L191 SmtUtils]: Spent 1.78 s on a formula simplification that was a NOOP. DAG size: 426 [2019-09-19 10:24:47,247 WARN L191 SmtUtils]: Spent 1.74 s on a formula simplification that was a NOOP. DAG size: 426 [2019-09-19 10:24:47,256 INFO L199 IcfgInterpreter]: Interpreting procedure test with input of size 434 for LOIs [2019-09-19 10:24:50,754 WARN L191 SmtUtils]: Spent 3.42 s on a formula simplification. DAG size of input: 433 DAG size of output: 427 [2019-09-19 10:24:52,460 WARN L191 SmtUtils]: Spent 1.70 s on a formula simplification that was a NOOP. DAG size: 427 [2019-09-19 10:25:03,537 WARN L191 SmtUtils]: Spent 11.05 s on a formula simplification. DAG size of input: 454 DAG size of output: 452 [2019-09-19 10:25:08,936 WARN L191 SmtUtils]: Spent 5.40 s on a formula simplification that was a NOOP. DAG size: 452 [2019-09-19 10:25:19,937 WARN L191 SmtUtils]: Spent 11.00 s on a formula simplification. DAG size of input: 454 DAG size of output: 452 [2019-09-19 10:25:25,352 WARN L191 SmtUtils]: Spent 5.41 s on a formula simplification that was a NOOP. DAG size: 452 [2019-09-19 10:25:36,359 WARN L191 SmtUtils]: Spent 11.01 s on a formula simplification. DAG size of input: 454 DAG size of output: 452 [2019-09-19 10:25:41,814 WARN L191 SmtUtils]: Spent 5.45 s on a formula simplification that was a NOOP. DAG size: 452 [2019-09-19 10:25:52,831 WARN L191 SmtUtils]: Spent 11.02 s on a formula simplification. DAG size of input: 454 DAG size of output: 452 [2019-09-19 10:25:58,236 WARN L191 SmtUtils]: Spent 5.40 s on a formula simplification that was a NOOP. DAG size: 452 [2019-09-19 10:26:09,294 WARN L191 SmtUtils]: Spent 11.06 s on a formula simplification. DAG size of input: 454 DAG size of output: 452 [2019-09-19 10:26:14,688 WARN L191 SmtUtils]: Spent 5.39 s on a formula simplification that was a NOOP. DAG size: 452 [2019-09-19 10:26:25,707 WARN L191 SmtUtils]: Spent 11.02 s on a formula simplification. DAG size of input: 454 DAG size of output: 452 [2019-09-19 10:26:31,157 WARN L191 SmtUtils]: Spent 5.45 s on a formula simplification that was a NOOP. DAG size: 452 [2019-09-19 10:26:42,181 WARN L191 SmtUtils]: Spent 11.02 s on a formula simplification. DAG size of input: 454 DAG size of output: 452 [2019-09-19 10:26:47,544 WARN L191 SmtUtils]: Spent 5.36 s on a formula simplification that was a NOOP. DAG size: 452 [2019-09-19 10:26:58,546 WARN L191 SmtUtils]: Spent 11.00 s on a formula simplification. DAG size of input: 454 DAG size of output: 452 [2019-09-19 10:27:03,969 WARN L191 SmtUtils]: Spent 5.42 s on a formula simplification that was a NOOP. DAG size: 452 [2019-09-19 10:27:15,010 WARN L191 SmtUtils]: Spent 11.04 s on a formula simplification. DAG size of input: 454 DAG size of output: 452 [2019-09-19 10:27:20,476 WARN L191 SmtUtils]: Spent 5.46 s on a formula simplification that was a NOOP. DAG size: 452 [2019-09-19 10:27:30,914 WARN L191 SmtUtils]: Spent 10.38 s on a formula simplification. DAG size of input: 435 DAG size of output: 430 [2019-09-19 10:27:36,124 WARN L191 SmtUtils]: Spent 5.21 s on a formula simplification that was a NOOP. DAG size: 430 [2019-09-19 10:27:54,443 WARN L191 SmtUtils]: Spent 18.24 s on a formula simplification. DAG size of input: 474 DAG size of output: 470 [2019-09-19 10:28:02,711 WARN L191 SmtUtils]: Spent 8.27 s on a formula simplification that was a NOOP. DAG size: 470 [2019-09-19 10:28:20,978 WARN L191 SmtUtils]: Spent 18.27 s on a formula simplification. DAG size of input: 474 DAG size of output: 470 [2019-09-19 10:28:29,277 WARN L191 SmtUtils]: Spent 8.30 s on a formula simplification that was a NOOP. DAG size: 470 [2019-09-19 10:28:37,054 WARN L191 SmtUtils]: Spent 7.76 s on a formula simplification that was a NOOP. DAG size: 435 [2019-09-19 10:28:44,821 WARN L191 SmtUtils]: Spent 7.77 s on a formula simplification that was a NOOP. DAG size: 435 [2019-09-19 10:29:16,641 WARN L191 SmtUtils]: Spent 31.78 s on a formula simplification. DAG size of input: 506 DAG size of output: 494 [2019-09-19 10:29:29,902 WARN L191 SmtUtils]: Spent 13.26 s on a formula simplification that was a NOOP. DAG size: 494 [2019-09-19 10:29:42,212 WARN L191 SmtUtils]: Spent 12.26 s on a formula simplification. DAG size of input: 450 DAG size of output: 439 [2019-09-19 10:29:48,079 WARN L191 SmtUtils]: Spent 5.87 s on a formula simplification that was a NOOP. DAG size: 439 [2019-09-19 10:30:01,903 WARN L191 SmtUtils]: Spent 13.80 s on a formula simplification. DAG size of input: 454 DAG size of output: 435 [2019-09-19 10:30:09,086 WARN L191 SmtUtils]: Spent 7.18 s on a formula simplification that was a NOOP. DAG size: 435 [2019-09-19 10:30:10,703 WARN L191 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 471 DAG size of output: 1 [2019-09-19 10:30:15,436 WARN L191 SmtUtils]: Spent 4.58 s on a formula simplification. DAG size of input: 463 DAG size of output: 1 [2019-09-19 10:30:23,645 WARN L191 SmtUtils]: Spent 8.14 s on a formula simplification. DAG size of input: 465 DAG size of output: 446 [2019-09-19 10:30:25,781 WARN L191 SmtUtils]: Spent 2.13 s on a formula simplification that was a NOOP. DAG size: 446 [2019-09-19 10:30:35,400 WARN L191 SmtUtils]: Spent 9.59 s on a formula simplification. DAG size of input: 486 DAG size of output: 454 [2019-09-19 10:30:37,668 WARN L191 SmtUtils]: Spent 2.27 s on a formula simplification that was a NOOP. DAG size: 454 [2019-09-19 10:30:45,833 WARN L191 SmtUtils]: Spent 8.06 s on a formula simplification. DAG size of input: 465 DAG size of output: 432 [2019-09-19 10:30:47,716 WARN L191 SmtUtils]: Spent 1.88 s on a formula simplification that was a NOOP. DAG size: 432 [2019-09-19 10:30:56,012 WARN L191 SmtUtils]: Spent 8.27 s on a formula simplification. DAG size of input: 463 DAG size of output: 430 [2019-09-19 10:30:57,921 WARN L191 SmtUtils]: Spent 1.91 s on a formula simplification that was a NOOP. DAG size: 430 [2019-09-19 10:31:14,376 WARN L191 SmtUtils]: Spent 16.45 s on a formula simplification. DAG size of input: 488 DAG size of output: 445 [2019-09-19 10:31:18,499 WARN L191 SmtUtils]: Spent 4.12 s on a formula simplification that was a NOOP. DAG size: 445 [2019-09-19 10:31:22,642 WARN L191 SmtUtils]: Spent 4.13 s on a formula simplification that was a NOOP. DAG size: 445 [2019-09-19 10:31:26,718 WARN L191 SmtUtils]: Spent 4.07 s on a formula simplification that was a NOOP. DAG size: 445 [2019-09-19 10:31:30,844 WARN L191 SmtUtils]: Spent 4.12 s on a formula simplification that was a NOOP. DAG size: 445 [2019-09-19 10:31:34,948 WARN L191 SmtUtils]: Spent 4.10 s on a formula simplification that was a NOOP. DAG size: 445 [2019-09-19 10:31:44,773 WARN L191 SmtUtils]: Spent 9.81 s on a formula simplification. DAG size of input: 470 DAG size of output: 443 [2019-09-19 10:31:46,815 WARN L191 SmtUtils]: Spent 2.04 s on a formula simplification that was a NOOP. DAG size: 443 [2019-09-19 10:31:51,172 WARN L191 SmtUtils]: Spent 4.33 s on a formula simplification. DAG size of input: 461 DAG size of output: 1 [2019-09-19 10:32:00,436 WARN L191 SmtUtils]: Spent 9.26 s on a formula simplification. DAG size of input: 470 DAG size of output: 442 [2019-09-19 10:32:02,572 WARN L191 SmtUtils]: Spent 2.13 s on a formula simplification that was a NOOP. DAG size: 442 [2019-09-19 10:32:19,250 WARN L191 SmtUtils]: Spent 16.66 s on a formula simplification. DAG size of input: 486 DAG size of output: 444 [2019-09-19 10:32:23,439 WARN L191 SmtUtils]: Spent 4.19 s on a formula simplification that was a NOOP. DAG size: 444 [2019-09-19 10:32:26,819 WARN L191 SmtUtils]: Spent 3.37 s on a formula simplification that was a NOOP. DAG size: 442 [2019-09-19 10:32:30,202 WARN L191 SmtUtils]: Spent 3.38 s on a formula simplification that was a NOOP. DAG size: 442 [2019-09-19 10:32:37,516 WARN L191 SmtUtils]: Spent 7.29 s on a formula simplification. DAG size of input: 448 DAG size of output: 433 [2019-09-19 10:32:39,935 WARN L191 SmtUtils]: Spent 2.42 s on a formula simplification that was a NOOP. DAG size: 433 [2019-09-19 10:32:50,929 WARN L191 SmtUtils]: Spent 10.97 s on a formula simplification. DAG size of input: 457 DAG size of output: 445 [2019-09-19 10:32:56,234 WARN L191 SmtUtils]: Spent 5.30 s on a formula simplification that was a NOOP. DAG size: 445 [2019-09-19 10:33:01,578 WARN L191 SmtUtils]: Spent 5.34 s on a formula simplification that was a NOOP. DAG size: 445 [2019-09-19 10:33:06,984 WARN L191 SmtUtils]: Spent 5.40 s on a formula simplification that was a NOOP. DAG size: 445 [2019-09-19 10:33:14,966 WARN L191 SmtUtils]: Spent 7.97 s on a formula simplification. DAG size of input: 454 DAG size of output: 445 [2019-09-19 10:33:18,362 WARN L191 SmtUtils]: Spent 3.39 s on a formula simplification that was a NOOP. DAG size: 445 [2019-09-19 10:33:39,568 WARN L191 SmtUtils]: Spent 21.03 s on a formula simplification. DAG size of input: 503 DAG size of output: 489 [2019-09-19 10:33:47,487 WARN L191 SmtUtils]: Spent 7.92 s on a formula simplification that was a NOOP. DAG size: 489 [2019-09-19 10:34:24,616 WARN L191 SmtUtils]: Spent 37.13 s on a formula simplification. DAG size of input: 532 DAG size of output: 514 [2019-09-19 10:34:35,249 WARN L191 SmtUtils]: Spent 10.63 s on a formula simplification that was a NOOP. DAG size: 514 [2019-09-19 10:35:17,070 WARN L191 SmtUtils]: Spent 41.82 s on a formula simplification. DAG size of input: 545 DAG size of output: 514 [2019-09-19 10:35:28,005 WARN L191 SmtUtils]: Spent 10.93 s on a formula simplification that was a NOOP. DAG size: 514 [2019-09-19 10:35:42,526 WARN L191 SmtUtils]: Spent 14.48 s on a formula simplification that was a NOOP. DAG size: 520 [2019-09-19 10:35:43,223 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 41 [2019-09-19 10:35:43,673 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 41 [2019-09-19 10:35:44,183 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 33 [2019-09-19 10:35:44,869 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 34 [2019-09-19 10:35:45,038 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2019-09-19 10:35:45,351 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 49 [2019-09-19 10:35:45,998 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 40 [2019-09-19 10:35:46,475 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 55 [2019-09-19 10:35:46,687 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 45 [2019-09-19 10:35:47,229 WARN L191 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2019-09-19 10:35:47,501 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2019-09-19 10:35:47,838 WARN L191 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2019-09-19 10:35:58,481 WARN L191 SmtUtils]: Spent 10.33 s on a formula simplification. DAG size of input: 435 DAG size of output: 430 [2019-09-19 10:36:03,683 WARN L191 SmtUtils]: Spent 5.20 s on a formula simplification that was a NOOP. DAG size: 430 [2019-09-19 10:36:22,597 WARN L191 SmtUtils]: Spent 18.86 s on a formula simplification. DAG size of input: 474 DAG size of output: 470 [2019-09-19 10:36:30,850 WARN L191 SmtUtils]: Spent 8.25 s on a formula simplification that was a NOOP. DAG size: 470 [2019-09-19 10:36:49,360 WARN L191 SmtUtils]: Spent 18.51 s on a formula simplification. DAG size of input: 474 DAG size of output: 470