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_product21.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-19 09:59:41,154 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-19 09:59:41,156 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-19 09:59:41,168 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-19 09:59:41,168 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-19 09:59:41,169 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-19 09:59:41,170 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-19 09:59:41,172 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-19 09:59:41,174 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-19 09:59:41,175 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-19 09:59:41,175 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-19 09:59:41,177 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-19 09:59:41,177 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-19 09:59:41,178 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-19 09:59:41,179 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-19 09:59:41,180 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-19 09:59:41,181 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-19 09:59:41,182 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-19 09:59:41,183 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-19 09:59:41,187 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-19 09:59:41,191 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-19 09:59:41,192 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-19 09:59:41,194 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-19 09:59:41,196 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-19 09:59:41,198 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-19 09:59:41,200 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-19 09:59:41,200 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-19 09:59:41,201 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-19 09:59:41,202 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-19 09:59:41,202 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-19 09:59:41,203 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-19 09:59:41,205 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-19 09:59:41,206 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-19 09:59:41,207 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-19 09:59:41,210 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-19 09:59:41,211 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-19 09:59:41,211 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-19 09:59:41,212 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-19 09:59:41,212 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-19 09:59:41,213 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-19 09:59:41,213 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-19 09:59:41,214 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 09:59:41,228 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-19 09:59:41,228 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-19 09:59:41,229 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-19 09:59:41,230 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-19 09:59:41,230 INFO L138 SettingsManager]: * Use SBE=true [2019-09-19 09:59:41,230 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-19 09:59:41,230 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-19 09:59:41,230 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-19 09:59:41,231 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-19 09:59:41,231 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-19 09:59:41,231 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-19 09:59:41,231 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-19 09:59:41,231 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-19 09:59:41,231 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-19 09:59:41,232 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-19 09:59:41,232 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-19 09:59:41,232 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-19 09:59:41,232 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-19 09:59:41,232 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-19 09:59:41,232 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-19 09:59:41,233 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-19 09:59:41,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-19 09:59:41,233 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-19 09:59:41,233 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-19 09:59:41,233 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-19 09:59:41,234 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-19 09:59:41,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-19 09:59:41,234 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-19 09:59:41,234 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 09:59:41,267 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-19 09:59:41,282 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-19 09:59:41,288 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-19 09:59:41,291 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-19 09:59:41,291 INFO L275 PluginConnector]: CDTParser initialized [2019-09-19 09:59:41,292 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product21.cil.c [2019-09-19 09:59:41,363 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d29ce687f/d5fd72c3faa24bbcb8b1a1a80ee5fae7/FLAG82cab7402 [2019-09-19 09:59:41,939 INFO L306 CDTParser]: Found 1 translation units. [2019-09-19 09:59:41,940 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product21.cil.c [2019-09-19 09:59:41,957 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d29ce687f/d5fd72c3faa24bbcb8b1a1a80ee5fae7/FLAG82cab7402 [2019-09-19 09:59:42,238 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d29ce687f/d5fd72c3faa24bbcb8b1a1a80ee5fae7 [2019-09-19 09:59:42,248 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-19 09:59:42,249 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-19 09:59:42,250 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-19 09:59:42,250 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-19 09:59:42,252 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-19 09:59:42,253 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 09:59:42" (1/1) ... [2019-09-19 09:59:42,255 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a7941ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:59:42, skipping insertion in model container [2019-09-19 09:59:42,255 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 09:59:42" (1/1) ... [2019-09-19 09:59:42,261 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-19 09:59:42,319 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-19 09:59:42,740 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-19 09:59:42,754 INFO L188 MainTranslator]: Completed pre-run [2019-09-19 09:59:42,862 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-19 09:59:42,904 INFO L192 MainTranslator]: Completed translation [2019-09-19 09:59:42,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:59:42 WrapperNode [2019-09-19 09:59:42,905 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-19 09:59:42,906 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-19 09:59:42,906 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-19 09:59:42,906 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-19 09:59:42,920 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:59:42" (1/1) ... [2019-09-19 09:59:42,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:59:42" (1/1) ... [2019-09-19 09:59:42,962 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:59:42" (1/1) ... [2019-09-19 09:59:42,962 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:59:42" (1/1) ... [2019-09-19 09:59:42,991 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:59:42" (1/1) ... [2019-09-19 09:59:43,010 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:59:42" (1/1) ... [2019-09-19 09:59:43,015 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:59:42" (1/1) ... [2019-09-19 09:59:43,022 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-19 09:59:43,023 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-19 09:59:43,023 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-19 09:59:43,023 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-19 09:59:43,024 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:59:42" (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 09:59:43,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-19 09:59:43,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-19 09:59:43,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-19 09:59:43,080 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-19 09:59:43,081 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-19 09:59:43,081 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-19 09:59:43,081 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-19 09:59:43,081 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-19 09:59:43,081 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-09-19 09:59:43,082 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-09-19 09:59:43,082 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-09-19 09:59:43,082 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-19 09:59:43,082 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-19 09:59:43,082 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-19 09:59:43,082 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-19 09:59:43,083 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-19 09:59:43,083 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-19 09:59:43,083 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-19 09:59:43,083 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-19 09:59:43,083 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-19 09:59:43,083 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-19 09:59:43,084 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-19 09:59:43,084 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-19 09:59:43,084 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-19 09:59:43,084 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-19 09:59:43,084 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-19 09:59:43,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-19 09:59:43,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-19 09:59:43,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-19 09:59:43,085 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-19 09:59:43,085 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-19 09:59:43,085 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-19 09:59:43,085 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2019-09-19 09:59:43,086 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-19 09:59:43,086 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-19 09:59:43,086 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-19 09:59:43,086 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-19 09:59:43,086 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-19 09:59:43,086 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-19 09:59:43,087 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-19 09:59:43,087 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-19 09:59:43,087 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-19 09:59:43,087 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-19 09:59:43,087 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-19 09:59:43,087 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-19 09:59:43,088 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-19 09:59:43,088 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-19 09:59:43,088 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-19 09:59:43,088 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-19 09:59:43,088 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-19 09:59:43,088 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-09-19 09:59:43,088 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-19 09:59:43,089 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-19 09:59:43,089 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-19 09:59:43,089 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-19 09:59:43,089 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-19 09:59:43,089 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-19 09:59:43,089 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-19 09:59:43,090 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-19 09:59:43,090 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-19 09:59:43,090 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-09-19 09:59:43,090 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-09-19 09:59:43,090 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-19 09:59:43,090 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-19 09:59:43,090 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-19 09:59:43,091 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-19 09:59:43,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-19 09:59:43,091 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-19 09:59:43,091 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-19 09:59:43,091 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-19 09:59:43,091 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-19 09:59:43,092 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-19 09:59:43,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-19 09:59:43,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-19 09:59:43,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-19 09:59:43,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-19 09:59:43,092 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-19 09:59:43,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-19 09:59:43,093 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-19 09:59:43,093 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-19 09:59:43,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-19 09:59:43,093 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-19 09:59:43,093 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-19 09:59:43,094 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-19 09:59:43,094 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-19 09:59:43,094 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-19 09:59:43,094 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-19 09:59:43,094 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-19 09:59:43,094 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-19 09:59:43,094 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2019-09-19 09:59:43,095 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-19 09:59:43,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-19 09:59:43,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-19 09:59:43,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-19 09:59:44,673 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-19 09:59:44,674 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-19 09:59:44,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 09:59:44 BoogieIcfgContainer [2019-09-19 09:59:44,676 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-19 09:59:44,677 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-19 09:59:44,677 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-19 09:59:44,678 INFO L275 PluginConnector]: Sifa initialized [2019-09-19 09:59:44,679 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 09:59:44" (1/1) ... [2019-09-19 09:59:44,680 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 09:59:44,722 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-19 09:59:44,722 INFO L169 IcfgInterpreter]: Building call graph [2019-09-19 09:59:44,735 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-19 09:59:44,746 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-19 09:59:44,748 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-19 09:59:57,947 WARN L191 SmtUtils]: Spent 13.09 s on a formula simplification that was a NOOP. DAG size: 443 [2019-09-19 10:00:10,549 WARN L191 SmtUtils]: Spent 12.60 s on a formula simplification that was a NOOP. DAG size: 443 [2019-09-19 10:00:33,862 WARN L191 SmtUtils]: Spent 14.04 s on a formula simplification that was a NOOP. DAG size: 466 [2019-09-19 10:00:35,576 WARN L191 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-09-19 10:00:39,549 WARN L191 SmtUtils]: Spent 3.97 s on a formula simplification. DAG size of input: 474 DAG size of output: 424 [2019-09-19 10:00:39,557 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 432 for LOIs [2019-09-19 10:00:41,409 WARN L191 SmtUtils]: Spent 1.84 s on a formula simplification that was a NOOP. DAG size: 424 [2019-09-19 10:00:43,259 WARN L191 SmtUtils]: Spent 1.85 s on a formula simplification that was a NOOP. DAG size: 424 [2019-09-19 10:00:45,077 WARN L191 SmtUtils]: Spent 1.81 s on a formula simplification that was a NOOP. DAG size: 424 [2019-09-19 10:00:46,866 WARN L191 SmtUtils]: Spent 1.79 s on a formula simplification that was a NOOP. DAG size: 424 [2019-09-19 10:00:48,659 WARN L191 SmtUtils]: Spent 1.79 s on a formula simplification that was a NOOP. DAG size: 428 [2019-09-19 10:00:50,536 WARN L191 SmtUtils]: Spent 1.88 s on a formula simplification that was a NOOP. DAG size: 428 [2019-09-19 10:00:52,296 WARN L191 SmtUtils]: Spent 1.74 s on a formula simplification that was a NOOP. DAG size: 424 [2019-09-19 10:00:54,119 WARN L191 SmtUtils]: Spent 1.82 s on a formula simplification that was a NOOP. DAG size: 424 [2019-09-19 10:00:54,128 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 432 for LOIs [2019-09-19 10:00:55,973 WARN L191 SmtUtils]: Spent 1.83 s on a formula simplification that was a NOOP. DAG size: 426 [2019-09-19 10:00:57,795 WARN L191 SmtUtils]: Spent 1.82 s on a formula simplification that was a NOOP. DAG size: 426 [2019-09-19 10:00:57,804 INFO L199 IcfgInterpreter]: Interpreting procedure test with input of size 432 for LOIs [2019-09-19 10:01:01,503 WARN L191 SmtUtils]: Spent 3.62 s on a formula simplification. DAG size of input: 433 DAG size of output: 427 [2019-09-19 10:01:03,278 WARN L191 SmtUtils]: Spent 1.77 s on a formula simplification that was a NOOP. DAG size: 427 [2019-09-19 10:01:14,208 WARN L191 SmtUtils]: Spent 10.88 s on a formula simplification. DAG size of input: 451 DAG size of output: 450 [2019-09-19 10:01:19,519 WARN L191 SmtUtils]: Spent 5.31 s on a formula simplification that was a NOOP. DAG size: 450 [2019-09-19 10:01:30,367 WARN L191 SmtUtils]: Spent 10.85 s on a formula simplification. DAG size of input: 451 DAG size of output: 450 [2019-09-19 10:01:35,687 WARN L191 SmtUtils]: Spent 5.32 s on a formula simplification that was a NOOP. DAG size: 450 [2019-09-19 10:01:45,996 WARN L191 SmtUtils]: Spent 10.26 s on a formula simplification. DAG size of input: 435 DAG size of output: 430 [2019-09-19 10:01:51,189 WARN L191 SmtUtils]: Spent 5.19 s on a formula simplification that was a NOOP. DAG size: 430 [2019-09-19 10:02:08,547 WARN L191 SmtUtils]: Spent 17.33 s on a formula simplification. DAG size of input: 467 DAG size of output: 464 [2019-09-19 10:02:16,129 WARN L191 SmtUtils]: Spent 7.58 s on a formula simplification that was a NOOP. DAG size: 464 [2019-09-19 10:02:22,601 WARN L191 SmtUtils]: Spent 6.40 s on a formula simplification that was a NOOP. DAG size: 437 [2019-09-19 10:02:28,968 WARN L191 SmtUtils]: Spent 6.37 s on a formula simplification that was a NOOP. DAG size: 437 [2019-09-19 10:02:41,260 WARN L191 SmtUtils]: Spent 12.27 s on a formula simplification. DAG size of input: 441 DAG size of output: 435 [2019-09-19 10:02:47,150 WARN L191 SmtUtils]: Spent 5.89 s on a formula simplification that was a NOOP. DAG size: 435 [2019-09-19 10:02:48,142 WARN L191 SmtUtils]: Spent 942.00 ms on a formula simplification. DAG size of input: 444 DAG size of output: 1 [2019-09-19 10:02:54,227 WARN L191 SmtUtils]: Spent 5.99 s on a formula simplification. DAG size of input: 448 DAG size of output: 1 [2019-09-19 10:03:00,369 WARN L191 SmtUtils]: Spent 6.08 s on a formula simplification. DAG size of input: 450 DAG size of output: 1 [2019-09-19 10:03:13,603 WARN L191 SmtUtils]: Spent 13.22 s on a formula simplification. DAG size of input: 443 DAG size of output: 436 [2019-09-19 10:03:19,051 WARN L191 SmtUtils]: Spent 5.45 s on a formula simplification that was a NOOP. DAG size: 436 [2019-09-19 10:03:32,361 WARN L191 SmtUtils]: Spent 13.31 s on a formula simplification. DAG size of input: 452 DAG size of output: 438 [2019-09-19 10:03:37,869 WARN L191 SmtUtils]: Spent 5.51 s on a formula simplification that was a NOOP. DAG size: 438 [2019-09-19 10:03:48,557 WARN L191 SmtUtils]: Spent 10.67 s on a formula simplification. DAG size of input: 451 DAG size of output: 437 [2019-09-19 10:03:53,788 WARN L191 SmtUtils]: Spent 5.23 s on a formula simplification that was a NOOP. DAG size: 437 [2019-09-19 10:04:11,140 WARN L191 SmtUtils]: Spent 17.34 s on a formula simplification. DAG size of input: 468 DAG size of output: 441 [2019-09-19 10:04:16,417 WARN L191 SmtUtils]: Spent 5.28 s on a formula simplification that was a NOOP. DAG size: 441 [2019-09-19 10:04:21,712 WARN L191 SmtUtils]: Spent 5.28 s on a formula simplification that was a NOOP. DAG size: 439 [2019-09-19 10:04:27,002 WARN L191 SmtUtils]: Spent 5.29 s on a formula simplification that was a NOOP. DAG size: 439 [2019-09-19 10:04:37,472 WARN L191 SmtUtils]: Spent 10.42 s on a formula simplification. DAG size of input: 445 DAG size of output: 434 [2019-09-19 10:04:40,930 WARN L191 SmtUtils]: Spent 3.46 s on a formula simplification that was a NOOP. DAG size: 434 [2019-09-19 10:04:51,884 WARN L191 SmtUtils]: Spent 10.91 s on a formula simplification. DAG size of input: 455 DAG size of output: 442 [2019-09-19 10:04:57,272 WARN L191 SmtUtils]: Spent 5.39 s on a formula simplification that was a NOOP. DAG size: 442 [2019-09-19 10:05:02,721 WARN L191 SmtUtils]: Spent 5.45 s on a formula simplification that was a NOOP. DAG size: 442 [2019-09-19 10:05:08,150 WARN L191 SmtUtils]: Spent 5.43 s on a formula simplification that was a NOOP. DAG size: 442 [2019-09-19 10:05:18,711 WARN L191 SmtUtils]: Spent 10.55 s on a formula simplification. DAG size of input: 445 DAG size of output: 441 [2019-09-19 10:05:23,974 WARN L191 SmtUtils]: Spent 5.26 s on a formula simplification that was a NOOP. DAG size: 441 [2019-09-19 10:05:36,372 WARN L191 SmtUtils]: Spent 12.33 s on a formula simplification. DAG size of input: 447 DAG size of output: 442 [2019-09-19 10:05:42,350 WARN L191 SmtUtils]: Spent 5.98 s on a formula simplification that was a NOOP. DAG size: 442 [2019-09-19 10:06:03,660 WARN L191 SmtUtils]: Spent 21.28 s on a formula simplification. DAG size of input: 513 DAG size of output: 476 [2019-09-19 10:06:07,690 WARN L191 SmtUtils]: Spent 4.03 s on a formula simplification that was a NOOP. DAG size: 476 [2019-09-19 10:06:13,078 WARN L191 SmtUtils]: Spent 5.35 s on a formula simplification that was a NOOP. DAG size: 437 [2019-09-19 10:06:18,332 WARN L191 SmtUtils]: Spent 5.25 s on a formula simplification that was a NOOP. DAG size: 437 [2019-09-19 10:06:31,014 WARN L191 SmtUtils]: Spent 12.66 s on a formula simplification. DAG size of input: 473 DAG size of output: 467 [2019-09-19 10:06:36,885 WARN L191 SmtUtils]: Spent 5.87 s on a formula simplification that was a NOOP. DAG size: 467 [2019-09-19 10:06:58,043 WARN L191 SmtUtils]: Spent 21.16 s on a formula simplification. DAG size of input: 478 DAG size of output: 465 [2019-09-19 10:07:03,874 WARN L191 SmtUtils]: Spent 5.83 s on a formula simplification that was a NOOP. DAG size: 465 [2019-09-19 10:07:16,762 WARN L191 SmtUtils]: Spent 12.89 s on a formula simplification. DAG size of input: 484 DAG size of output: 465 [2019-09-19 10:07:22,875 WARN L191 SmtUtils]: Spent 6.11 s on a formula simplification that was a NOOP. DAG size: 465 [2019-09-19 10:07:34,702 WARN L191 SmtUtils]: Spent 11.80 s on a formula simplification that was a NOOP. DAG size: 484 [2019-09-19 10:07:35,457 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 30 [2019-09-19 10:07:35,857 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 34 [2019-09-19 10:07:36,414 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2019-09-19 10:07:36,687 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2019-09-19 10:07:37,264 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 35 [2019-09-19 10:07:37,431 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 35 [2019-09-19 10:07:38,294 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 30 [2019-09-19 10:07:38,714 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 34 [2019-09-19 10:07:39,457 WARN L191 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 47 [2019-09-19 10:07:39,577 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2019-09-19 10:07:39,984 WARN L191 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-19 10:07:40,245 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 25 [2019-09-19 10:07:44,293 WARN L191 SmtUtils]: Spent 3.93 s on a formula simplification. DAG size of input: 450 DAG size of output: 450 [2019-09-19 10:07:46,274 WARN L191 SmtUtils]: Spent 1.98 s on a formula simplification that was a NOOP. DAG size: 450 [2019-09-19 10:07:57,086 WARN L191 SmtUtils]: Spent 10.78 s on a formula simplification. DAG size of input: 435 DAG size of output: 430 [2019-09-19 10:08:02,432 WARN L191 SmtUtils]: Spent 5.34 s on a formula simplification that was a NOOP. DAG size: 430 [2019-09-19 10:08:19,823 WARN L191 SmtUtils]: Spent 17.38 s on a formula simplification. DAG size of input: 467 DAG size of output: 464 [2019-09-19 10:08:27,402 WARN L191 SmtUtils]: Spent 7.58 s on a formula simplification that was a NOOP. DAG size: 464 [2019-09-19 10:08:33,994 WARN L191 SmtUtils]: Spent 6.55 s on a formula simplification that was a NOOP. DAG size: 437 [2019-09-19 10:08:40,453 WARN L191 SmtUtils]: Spent 6.46 s on a formula simplification that was a NOOP. DAG size: 437 [2019-09-19 10:08:52,470 WARN L191 SmtUtils]: Spent 12.00 s on a formula simplification. DAG size of input: 442 DAG size of output: 435 [2019-09-19 10:08:58,373 WARN L191 SmtUtils]: Spent 5.90 s on a formula simplification that was a NOOP. DAG size: 435 [2019-09-19 10:08:59,888 WARN L191 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 451 DAG size of output: 1 [2019-09-19 10:09:01,223 WARN L191 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 441 DAG size of output: 1 [2019-09-19 10:09:02,524 WARN L191 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 443 DAG size of output: 1 [2019-09-19 10:09:14,781 WARN L191 SmtUtils]: Spent 12.25 s on a formula simplification. DAG size of input: 435 DAG size of output: 433 [2019-09-19 10:09:20,907 WARN L191 SmtUtils]: Spent 6.12 s on a formula simplification that was a NOOP. DAG size: 433 [2019-09-19 10:09:33,105 WARN L191 SmtUtils]: Spent 12.20 s on a formula simplification. DAG size of input: 443 DAG size of output: 435 [2019-09-19 10:09:39,233 WARN L191 SmtUtils]: Spent 6.13 s on a formula simplification that was a NOOP. DAG size: 435 [2019-09-19 10:09:51,446 WARN L191 SmtUtils]: Spent 12.21 s on a formula simplification. DAG size of input: 442 DAG size of output: 435 [2019-09-19 10:09:57,551 WARN L191 SmtUtils]: Spent 6.10 s on a formula simplification that was a NOOP. DAG size: 435 [2019-09-19 10:10:10,750 WARN L191 SmtUtils]: Spent 13.19 s on a formula simplification. DAG size of input: 466 DAG size of output: 438 [2019-09-19 10:10:14,850 WARN L191 SmtUtils]: Spent 4.10 s on a formula simplification that was a NOOP. DAG size: 438 [2019-09-19 10:10:18,993 WARN L191 SmtUtils]: Spent 4.14 s on a formula simplification that was a NOOP. DAG size: 436 [2019-09-19 10:10:23,065 WARN L191 SmtUtils]: Spent 4.07 s on a formula simplification that was a NOOP. DAG size: 436 [2019-09-19 10:10:28,864 WARN L191 SmtUtils]: Spent 5.77 s on a formula simplification. DAG size of input: 442 DAG size of output: 433 [2019-09-19 10:10:31,104 WARN L191 SmtUtils]: Spent 2.24 s on a formula simplification that was a NOOP. DAG size: 433 [2019-09-19 10:10:39,436 WARN L191 SmtUtils]: Spent 8.30 s on a formula simplification. DAG size of input: 449 DAG size of output: 439 [2019-09-19 10:10:43,477 WARN L191 SmtUtils]: Spent 4.04 s on a formula simplification that was a NOOP. DAG size: 439 [2019-09-19 10:10:47,502 WARN L191 SmtUtils]: Spent 4.02 s on a formula simplification that was a NOOP. DAG size: 439 [2019-09-19 10:10:51,528 WARN L191 SmtUtils]: Spent 4.03 s on a formula simplification that was a NOOP. DAG size: 439 [2019-09-19 10:10:59,970 WARN L191 SmtUtils]: Spent 8.43 s on a formula simplification. DAG size of input: 444 DAG size of output: 438 [2019-09-19 10:11:04,138 WARN L191 SmtUtils]: Spent 4.17 s on a formula simplification that was a NOOP. DAG size: 438 [2019-09-19 10:11:12,964 WARN L191 SmtUtils]: Spent 8.75 s on a formula simplification. DAG size of input: 448 DAG size of output: 442 [2019-09-19 10:11:16,947 WARN L191 SmtUtils]: Spent 3.98 s on a formula simplification that was a NOOP. DAG size: 442 [2019-09-19 10:11:38,548 WARN L191 SmtUtils]: Spent 21.59 s on a formula simplification. DAG size of input: 502 DAG size of output: 475 [2019-09-19 10:11:44,167 WARN L191 SmtUtils]: Spent 5.62 s on a formula simplification that was a NOOP. DAG size: 475 [2019-09-19 10:11:50,749 WARN L191 SmtUtils]: Spent 6.54 s on a formula simplification that was a NOOP. DAG size: 442 [2019-09-19 10:11:57,271 WARN L191 SmtUtils]: Spent 6.52 s on a formula simplification that was a NOOP. DAG size: 442 [2019-09-19 10:12:13,856 WARN L191 SmtUtils]: Spent 16.57 s on a formula simplification. DAG size of input: 485 DAG size of output: 473 [2019-09-19 10:12:20,611 WARN L191 SmtUtils]: Spent 6.75 s on a formula simplification that was a NOOP. DAG size: 473 [2019-09-19 10:12:45,636 WARN L191 SmtUtils]: Spent 25.02 s on a formula simplification. DAG size of input: 485 DAG size of output: 471 [2019-09-19 10:12:52,307 WARN L191 SmtUtils]: Spent 6.67 s on a formula simplification that was a NOOP. DAG size: 471