java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/SifaC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --sifa.abstract.domain ExplicitValueDomain --rcfgbuilder.size.of.a.code.block SingleStatement --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.intern.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_DDA -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product03.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-18 13:40:30,093 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-18 13:40:30,095 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-18 13:40:30,107 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-18 13:40:30,107 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-18 13:40:30,108 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-18 13:40:30,109 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-18 13:40:30,111 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-18 13:40:30,113 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-18 13:40:30,113 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-18 13:40:30,114 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-18 13:40:30,115 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-18 13:40:30,116 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-18 13:40:30,117 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-18 13:40:30,118 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-18 13:40:30,119 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-18 13:40:30,120 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-18 13:40:30,120 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-18 13:40:30,122 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-18 13:40:30,124 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-18 13:40:30,125 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-18 13:40:30,126 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-18 13:40:30,127 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-18 13:40:30,128 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-18 13:40:30,132 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-18 13:40:30,132 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-18 13:40:30,132 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-18 13:40:30,133 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-18 13:40:30,133 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-18 13:40:30,134 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-18 13:40:30,134 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-18 13:40:30,135 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-18 13:40:30,136 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-18 13:40:30,136 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-18 13:40:30,137 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-18 13:40:30,137 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-18 13:40:30,138 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-18 13:40:30,138 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-18 13:40:30,138 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-18 13:40:30,139 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-18 13:40:30,140 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-18 13:40:30,141 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 13:40:30,154 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-18 13:40:30,154 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-18 13:40:30,156 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-18 13:40:30,156 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-18 13:40:30,156 INFO L138 SettingsManager]: * Use SBE=true [2019-09-18 13:40:30,156 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-18 13:40:30,156 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-18 13:40:30,157 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-18 13:40:30,157 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-18 13:40:30,157 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-18 13:40:30,157 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-18 13:40:30,157 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-18 13:40:30,158 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-18 13:40:30,158 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-18 13:40:30,158 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-18 13:40:30,158 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-18 13:40:30,158 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-18 13:40:30,159 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-18 13:40:30,159 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-18 13:40:30,159 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-18 13:40:30,159 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-18 13:40:30,159 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-18 13:40:30,160 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-18 13:40:30,160 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-18 13:40:30,160 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-18 13:40:30,160 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-18 13:40:30,160 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-18 13:40:30,161 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-18 13:40:30,161 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> ExplicitValueDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Intern Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_DDA [2019-09-18 13:40:30,198 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-18 13:40:30,214 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-18 13:40:30,220 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-18 13:40:30,223 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-18 13:40:30,224 INFO L275 PluginConnector]: CDTParser initialized [2019-09-18 13:40:30,225 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product03.cil.c [2019-09-18 13:40:30,286 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0b9234e3/e52eb342505840be9e95aa2ca8d13c12/FLAG2b177167c [2019-09-18 13:40:30,835 INFO L306 CDTParser]: Found 1 translation units. [2019-09-18 13:40:30,836 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product03.cil.c [2019-09-18 13:40:30,848 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0b9234e3/e52eb342505840be9e95aa2ca8d13c12/FLAG2b177167c [2019-09-18 13:40:31,119 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0b9234e3/e52eb342505840be9e95aa2ca8d13c12 [2019-09-18 13:40:31,129 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-18 13:40:31,131 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-18 13:40:31,132 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-18 13:40:31,132 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-18 13:40:31,136 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-18 13:40:31,137 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 01:40:31" (1/1) ... [2019-09-18 13:40:31,140 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23ac3fee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:40:31, skipping insertion in model container [2019-09-18 13:40:31,140 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 01:40:31" (1/1) ... [2019-09-18 13:40:31,147 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-18 13:40:31,205 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-18 13:40:31,642 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-18 13:40:31,661 INFO L188 MainTranslator]: Completed pre-run [2019-09-18 13:40:31,739 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-18 13:40:31,771 INFO L192 MainTranslator]: Completed translation [2019-09-18 13:40:31,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:40:31 WrapperNode [2019-09-18 13:40:31,772 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-18 13:40:31,772 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-18 13:40:31,773 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-18 13:40:31,773 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-18 13:40:31,788 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:40:31" (1/1) ... [2019-09-18 13:40:31,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:40:31" (1/1) ... [2019-09-18 13:40:31,811 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:40:31" (1/1) ... [2019-09-18 13:40:31,812 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:40:31" (1/1) ... [2019-09-18 13:40:31,839 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:40:31" (1/1) ... [2019-09-18 13:40:31,849 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:40:31" (1/1) ... [2019-09-18 13:40:31,855 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:40:31" (1/1) ... [2019-09-18 13:40:31,862 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-18 13:40:31,863 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-18 13:40:31,863 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-18 13:40:31,863 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-18 13:40:31,864 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:40:31" (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 13:40:31,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-18 13:40:31,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-18 13:40:31,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-18 13:40:31,928 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-18 13:40:31,928 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-18 13:40:31,928 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-18 13:40:31,928 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-18 13:40:31,928 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-18 13:40:31,929 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-18 13:40:31,929 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-18 13:40:31,929 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-18 13:40:31,929 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-18 13:40:31,929 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-18 13:40:31,929 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-18 13:40:31,930 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-18 13:40:31,930 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-18 13:40:31,930 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-18 13:40:31,930 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-18 13:40:31,930 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-18 13:40:31,931 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-18 13:40:31,931 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-18 13:40:31,931 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-18 13:40:31,931 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-18 13:40:31,931 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-18 13:40:31,931 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-18 13:40:31,932 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-18 13:40:31,932 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-18 13:40:31,932 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-18 13:40:31,932 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-18 13:40:31,932 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-09-18 13:40:31,932 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-18 13:40:31,933 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-18 13:40:31,933 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-18 13:40:31,933 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-18 13:40:31,933 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-18 13:40:31,933 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-18 13:40:31,933 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-18 13:40:31,934 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-18 13:40:31,934 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-18 13:40:31,934 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-18 13:40:31,934 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-18 13:40:31,934 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-18 13:40:31,934 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-18 13:40:31,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-18 13:40:31,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-18 13:40:31,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-18 13:40:31,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-18 13:40:31,935 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-18 13:40:31,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-18 13:40:31,935 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-18 13:40:31,936 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-18 13:40:31,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-18 13:40:31,936 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-18 13:40:31,936 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-18 13:40:31,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-18 13:40:31,936 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-18 13:40:31,937 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-18 13:40:31,937 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-18 13:40:31,937 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-18 13:40:31,937 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-18 13:40:31,937 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-18 13:40:31,937 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-18 13:40:31,938 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-18 13:40:31,938 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-18 13:40:31,938 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-18 13:40:31,938 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-18 13:40:31,938 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-18 13:40:31,938 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-18 13:40:31,938 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-18 13:40:31,939 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-18 13:40:31,939 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-18 13:40:31,939 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-18 13:40:31,939 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-18 13:40:31,939 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-09-18 13:40:31,939 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-18 13:40:31,940 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-18 13:40:31,940 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-18 13:40:31,940 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-18 13:40:31,940 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-18 13:40:31,940 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-18 13:40:31,940 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-18 13:40:31,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-18 13:40:31,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-18 13:40:31,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-18 13:40:33,204 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-18 13:40:33,204 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-18 13:40:33,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 01:40:33 BoogieIcfgContainer [2019-09-18 13:40:33,206 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-18 13:40:33,206 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-18 13:40:33,206 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-18 13:40:33,207 INFO L275 PluginConnector]: Sifa initialized [2019-09-18 13:40:33,208 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 01:40:33" (1/1) ... [2019-09-18 13:40:33,209 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 13:40:33,231 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-18 13:40:33,231 INFO L169 IcfgInterpreter]: Building call graph [2019-09-18 13:40:33,241 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-18 13:40:33,250 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-18 13:40:33,251 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-18 13:40:33,815 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2019-09-18 13:40:34,194 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 56 [2019-09-18 13:40:34,422 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 53 [2019-09-18 13:40:34,697 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2019-09-18 13:40:34,960 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 63 [2019-09-18 13:40:35,363 WARN L191 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 76 [2019-09-18 13:40:35,683 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 73 [2019-09-18 13:40:36,194 WARN L191 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 86 [2019-09-18 13:40:36,637 WARN L191 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 85 [2019-09-18 13:40:37,318 WARN L191 SmtUtils]: Spent 526.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 98 [2019-09-18 13:40:37,863 WARN L191 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 97 [2019-09-18 13:40:38,094 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2019-09-18 13:40:38,748 WARN L191 SmtUtils]: Spent 647.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 111 [2019-09-18 13:40:39,263 WARN L191 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 106 [2019-09-18 13:40:39,549 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-09-18 13:40:40,458 WARN L191 SmtUtils]: Spent 901.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 119 [2019-09-18 13:40:41,224 WARN L191 SmtUtils]: Spent 555.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 120 [2019-09-18 13:40:41,584 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2019-09-18 13:40:42,671 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 243 DAG size of output: 133 [2019-09-18 13:40:42,854 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2019-09-18 13:40:43,534 WARN L191 SmtUtils]: Spent 674.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 134 [2019-09-18 13:40:43,914 WARN L191 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-09-18 13:40:44,971 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 291 DAG size of output: 147 [2019-09-18 13:40:45,884 WARN L191 SmtUtils]: Spent 709.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 144 [2019-09-18 13:40:46,513 WARN L191 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 233 [2019-09-18 13:40:48,321 WARN L191 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 334 DAG size of output: 162 [2019-09-18 13:40:49,301 WARN L191 SmtUtils]: Spent 812.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 157 [2019-09-18 13:40:50,116 WARN L191 SmtUtils]: Spent 484.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2019-09-18 13:40:52,388 WARN L191 SmtUtils]: Spent 2.26 s on a formula simplification. DAG size of input: 379 DAG size of output: 171 [2019-09-18 13:40:53,495 WARN L191 SmtUtils]: Spent 892.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 166 [2019-09-18 13:40:54,609 WARN L191 SmtUtils]: Spent 667.00 ms on a formula simplification that was a NOOP. DAG size: 337 [2019-09-18 13:40:57,432 WARN L191 SmtUtils]: Spent 2.81 s on a formula simplification. DAG size of input: 476 DAG size of output: 193 [2019-09-18 13:40:58,657 WARN L191 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 240 DAG size of output: 188 [2019-09-18 13:40:59,982 WARN L191 SmtUtils]: Spent 815.00 ms on a formula simplification that was a NOOP. DAG size: 391 [2019-09-18 13:41:03,649 WARN L191 SmtUtils]: Spent 3.65 s on a formula simplification. DAG size of input: 510 DAG size of output: 215 [2019-09-18 13:41:05,051 WARN L191 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 256 DAG size of output: 210 [2019-09-18 13:41:06,763 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 445 [2019-09-18 13:41:11,252 WARN L191 SmtUtils]: Spent 4.48 s on a formula simplification. DAG size of input: 604 DAG size of output: 252 [2019-09-18 13:41:11,523 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-09-18 13:41:13,042 WARN L191 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 299 DAG size of output: 249 [2019-09-18 13:41:15,123 WARN L191 SmtUtils]: Spent 1.25 s on a formula simplification that was a NOOP. DAG size: 499 [2019-09-18 13:41:20,886 WARN L191 SmtUtils]: Spent 5.75 s on a formula simplification. DAG size of input: 691 DAG size of output: 271 [2019-09-18 13:41:21,191 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2019-09-18 13:41:22,905 WARN L191 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 332 DAG size of output: 268 [2019-09-18 13:41:25,482 WARN L191 SmtUtils]: Spent 1.46 s on a formula simplification that was a NOOP. DAG size: 553 [2019-09-18 13:41:31,858 WARN L191 SmtUtils]: Spent 6.36 s on a formula simplification. DAG size of input: 734 DAG size of output: 293 [2019-09-18 13:41:32,237 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-09-18 13:41:34,294 WARN L191 SmtUtils]: Spent 2.05 s on a formula simplification. DAG size of input: 364 DAG size of output: 292 [2019-09-18 13:41:37,161 WARN L191 SmtUtils]: Spent 1.69 s on a formula simplification that was a NOOP. DAG size: 607 [2019-09-18 13:41:45,444 WARN L191 SmtUtils]: Spent 8.27 s on a formula simplification. DAG size of input: 779 DAG size of output: 312 [2019-09-18 13:41:45,772 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-09-18 13:41:47,849 WARN L191 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 365 DAG size of output: 307 [2019-09-18 13:41:51,390 WARN L191 SmtUtils]: Spent 1.98 s on a formula simplification that was a NOOP. DAG size: 661 [2019-09-18 13:42:00,696 WARN L191 SmtUtils]: Spent 9.28 s on a formula simplification. DAG size of input: 907 DAG size of output: 331 [2019-09-18 13:42:01,091 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2019-09-18 13:42:03,518 WARN L191 SmtUtils]: Spent 2.42 s on a formula simplification. DAG size of input: 392 DAG size of output: 328 [2019-09-18 13:42:06,452 WARN L191 SmtUtils]: Spent 2.43 s on a formula simplification that was a NOOP. DAG size: 739 [2019-09-18 13:42:13,868 WARN L191 SmtUtils]: Spent 7.39 s on a formula simplification. DAG size of input: 925 DAG size of output: 341 [2019-09-18 13:42:14,316 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2019-09-18 13:42:16,887 WARN L191 SmtUtils]: Spent 2.57 s on a formula simplification. DAG size of input: 417 DAG size of output: 338 [2019-09-18 13:42:20,238 WARN L191 SmtUtils]: Spent 2.80 s on a formula simplification that was a NOOP. DAG size: 797 [2019-09-18 13:42:29,018 WARN L191 SmtUtils]: Spent 8.75 s on a formula simplification. DAG size of input: 1010 DAG size of output: 374 [2019-09-18 13:42:29,514 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-09-18 13:42:32,492 WARN L191 SmtUtils]: Spent 2.97 s on a formula simplification. DAG size of input: 450 DAG size of output: 369 [2019-09-18 13:42:38,483 WARN L191 SmtUtils]: Spent 3.20 s on a formula simplification that was a NOOP. DAG size: 855 [2019-09-18 13:42:54,301 WARN L191 SmtUtils]: Spent 15.79 s on a formula simplification. DAG size of input: 1057 DAG size of output: 401 [2019-09-18 13:42:54,889 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2019-09-18 13:42:58,374 WARN L191 SmtUtils]: Spent 3.48 s on a formula simplification. DAG size of input: 472 DAG size of output: 402 [2019-09-18 13:43:05,166 WARN L191 SmtUtils]: Spent 3.54 s on a formula simplification that was a NOOP. DAG size: 913 [2019-09-18 13:43:24,583 WARN L191 SmtUtils]: Spent 19.38 s on a formula simplification. DAG size of input: 1201 DAG size of output: 419 [2019-09-18 13:43:25,137 WARN L191 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2019-09-18 13:43:28,666 WARN L191 SmtUtils]: Spent 3.52 s on a formula simplification. DAG size of input: 488 DAG size of output: 416 [2019-09-18 13:43:32,015 WARN L191 SmtUtils]: Spent 3.34 s on a formula simplification. DAG size of input: 424 DAG size of output: 422 [2019-09-18 13:43:33,735 WARN L191 SmtUtils]: Spent 1.72 s on a formula simplification that was a NOOP. DAG size: 422 [2019-09-18 13:43:33,746 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 430 for LOIs [2019-09-18 13:43:33,814 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 430 for LOIs [2019-09-18 13:43:33,820 INFO L199 IcfgInterpreter]: Interpreting procedure test with input of size 430 for LOIs [2019-09-18 13:43:45,191 WARN L191 SmtUtils]: Spent 11.11 s on a formula simplification. DAG size of input: 447 DAG size of output: 446 [2019-09-18 13:43:50,718 WARN L191 SmtUtils]: Spent 5.53 s on a formula simplification that was a NOOP. DAG size: 446 [2019-09-18 13:44:01,759 WARN L191 SmtUtils]: Spent 11.04 s on a formula simplification. DAG size of input: 447 DAG size of output: 446 [2019-09-18 13:44:07,356 WARN L191 SmtUtils]: Spent 5.60 s on a formula simplification that was a NOOP. DAG size: 446 [2019-09-18 13:44:18,480 WARN L191 SmtUtils]: Spent 11.12 s on a formula simplification. DAG size of input: 447 DAG size of output: 446 [2019-09-18 13:44:24,009 WARN L191 SmtUtils]: Spent 5.53 s on a formula simplification that was a NOOP. DAG size: 446 [2019-09-18 13:44:35,152 WARN L191 SmtUtils]: Spent 11.14 s on a formula simplification. DAG size of input: 447 DAG size of output: 446 [2019-09-18 13:44:40,677 WARN L191 SmtUtils]: Spent 5.52 s on a formula simplification that was a NOOP. DAG size: 446 [2019-09-18 13:44:51,793 WARN L191 SmtUtils]: Spent 11.11 s on a formula simplification. DAG size of input: 447 DAG size of output: 446 [2019-09-18 13:44:57,388 WARN L191 SmtUtils]: Spent 5.59 s on a formula simplification that was a NOOP. DAG size: 446 [2019-09-18 13:45:08,514 WARN L191 SmtUtils]: Spent 11.12 s on a formula simplification. DAG size of input: 447 DAG size of output: 446 [2019-09-18 13:45:14,062 WARN L191 SmtUtils]: Spent 5.55 s on a formula simplification that was a NOOP. DAG size: 446 [2019-09-18 13:45:25,121 WARN L191 SmtUtils]: Spent 11.06 s on a formula simplification. DAG size of input: 447 DAG size of output: 446 [2019-09-18 13:45:30,727 WARN L191 SmtUtils]: Spent 5.61 s on a formula simplification that was a NOOP. DAG size: 446 [2019-09-18 13:45:41,894 WARN L191 SmtUtils]: Spent 11.16 s on a formula simplification. DAG size of input: 447 DAG size of output: 446 [2019-09-18 13:45:47,413 WARN L191 SmtUtils]: Spent 5.52 s on a formula simplification that was a NOOP. DAG size: 446 [2019-09-18 13:46:05,725 WARN L191 SmtUtils]: Spent 18.24 s on a formula simplification. DAG size of input: 457 DAG size of output: 454 [2019-09-18 13:46:14,799 WARN L191 SmtUtils]: Spent 9.07 s on a formula simplification that was a NOOP. DAG size: 453 [2019-09-18 13:46:27,428 WARN L191 SmtUtils]: Spent 12.33 s on a formula simplification. DAG size of input: 470 DAG size of output: 466 [2019-09-18 13:46:33,487 WARN L191 SmtUtils]: Spent 6.06 s on a formula simplification that was a NOOP. DAG size: 466 [2019-09-18 13:46:45,367 WARN L191 SmtUtils]: Spent 11.88 s on a formula simplification. DAG size of input: 470 DAG size of output: 466 [2019-09-18 13:46:51,171 WARN L191 SmtUtils]: Spent 5.80 s on a formula simplification that was a NOOP. DAG size: 466 [2019-09-18 13:47:03,151 WARN L191 SmtUtils]: Spent 11.96 s on a formula simplification. DAG size of input: 474 DAG size of output: 473 [2019-09-18 13:47:09,148 WARN L191 SmtUtils]: Spent 6.00 s on a formula simplification that was a NOOP. DAG size: 472 [2019-09-18 13:47:14,972 WARN L191 SmtUtils]: Spent 5.82 s on a formula simplification that was a NOOP. DAG size: 473 [2019-09-18 13:47:20,856 WARN L191 SmtUtils]: Spent 5.88 s on a formula simplification that was a NOOP. DAG size: 473 [2019-09-18 13:47:30,323 WARN L191 SmtUtils]: Spent 9.45 s on a formula simplification that was a NOOP. DAG size: 479 [2019-09-18 13:47:39,849 WARN L191 SmtUtils]: Spent 9.52 s on a formula simplification that was a NOOP. DAG size: 479 [2019-09-18 13:48:13,157 WARN L191 SmtUtils]: Spent 33.26 s on a formula simplification. DAG size of input: 493 DAG size of output: 488 [2019-09-18 13:48:29,850 WARN L191 SmtUtils]: Spent 16.69 s on a formula simplification that was a NOOP. DAG size: 488 [2019-09-18 13:48:44,895 WARN L191 SmtUtils]: Spent 14.83 s on a formula simplification. DAG size of input: 486 DAG size of output: 466 [2019-09-18 13:48:50,614 WARN L191 SmtUtils]: Spent 5.71 s on a formula simplification that was a NOOP. DAG size: 466 [2019-09-18 13:49:05,625 WARN L191 SmtUtils]: Spent 15.01 s on a formula simplification. DAG size of input: 486 DAG size of output: 466 [2019-09-18 13:49:11,275 WARN L191 SmtUtils]: Spent 5.65 s on a formula simplification that was a NOOP. DAG size: 466 [2019-09-18 13:49:29,976 WARN L191 SmtUtils]: Spent 18.69 s on a formula simplification. DAG size of input: 474 DAG size of output: 474 [2019-09-18 13:49:39,210 WARN L191 SmtUtils]: Spent 9.23 s on a formula simplification that was a NOOP. DAG size: 474 [2019-09-18 13:49:48,530 WARN L191 SmtUtils]: Spent 9.31 s on a formula simplification that was a NOOP. DAG size: 473 [2019-09-18 13:49:57,788 WARN L191 SmtUtils]: Spent 9.26 s on a formula simplification that was a NOOP. DAG size: 473 [2019-09-18 13:50:23,934 WARN L191 SmtUtils]: Spent 26.09 s on a formula simplification. DAG size of input: 493 DAG size of output: 482 [2019-09-18 13:50:36,945 WARN L191 SmtUtils]: Spent 13.01 s on a formula simplification that was a NOOP. DAG size: 481 [2019-09-18 13:50:48,678 WARN L191 SmtUtils]: Spent 11.55 s on a formula simplification. DAG size of input: 475 DAG size of output: 462 [2019-09-18 13:50:54,331 WARN L191 SmtUtils]: Spent 5.65 s on a formula simplification that was a NOOP. DAG size: 462 [2019-09-18 13:51:09,083 WARN L191 SmtUtils]: Spent 14.72 s on a formula simplification. DAG size of input: 470 DAG size of output: 459 [2019-09-18 13:51:14,836 WARN L191 SmtUtils]: Spent 5.75 s on a formula simplification that was a NOOP. DAG size: 459 [2019-09-18 13:51:26,680 WARN L191 SmtUtils]: Spent 11.76 s on a formula simplification. DAG size of input: 466 DAG size of output: 465 [2019-09-18 13:51:32,491 WARN L191 SmtUtils]: Spent 5.81 s on a formula simplification that was a NOOP. DAG size: 465 [2019-09-18 13:51:44,269 WARN L191 SmtUtils]: Spent 11.78 s on a formula simplification. DAG size of input: 466 DAG size of output: 465 [2019-09-18 13:51:50,117 WARN L191 SmtUtils]: Spent 5.85 s on a formula simplification that was a NOOP. DAG size: 465 [2019-09-18 13:52:09,152 WARN L191 SmtUtils]: Spent 19.02 s on a formula simplification. DAG size of input: 473 DAG size of output: 472 [2019-09-18 13:52:18,628 WARN L191 SmtUtils]: Spent 9.47 s on a formula simplification that was a NOOP. DAG size: 471 [2019-09-18 13:52:27,980 WARN L191 SmtUtils]: Spent 9.34 s on a formula simplification that was a NOOP. DAG size: 474 [2019-09-18 13:52:37,412 WARN L191 SmtUtils]: Spent 9.43 s on a formula simplification that was a NOOP. DAG size: 474 [2019-09-18 13:52:59,390 WARN L191 SmtUtils]: Spent 21.95 s on a formula simplification. DAG size of input: 483 DAG size of output: 473 [2019-09-18 13:53:08,698 WARN L191 SmtUtils]: Spent 9.31 s on a formula simplification that was a NOOP. DAG size: 473 [2019-09-18 13:53:27,294 WARN L191 SmtUtils]: Spent 18.56 s on a formula simplification. DAG size of input: 482 DAG size of output: 471 [2019-09-18 13:53:36,584 WARN L191 SmtUtils]: Spent 9.29 s on a formula simplification that was a NOOP. DAG size: 471 [2019-09-18 13:53:48,126 WARN L191 SmtUtils]: Spent 11.41 s on a formula simplification. DAG size of input: 469 DAG size of output: 465