/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration false -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product16.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 10:09:05,669 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 10:09:05,673 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 10:09:05,699 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 10:09:05,700 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 10:09:05,701 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 10:09:05,702 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 10:09:05,704 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 10:09:05,706 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 10:09:05,707 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 10:09:05,707 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 10:09:05,709 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 10:09:05,709 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 10:09:05,710 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 10:09:05,711 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 10:09:05,712 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 10:09:05,713 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 10:09:05,714 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 10:09:05,716 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 10:09:05,717 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 10:09:05,719 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 10:09:05,720 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 10:09:05,721 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 10:09:05,722 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 10:09:05,724 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 10:09:05,724 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 10:09:05,724 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 10:09:05,725 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 10:09:05,726 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 10:09:05,727 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 10:09:05,727 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 10:09:05,728 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 10:09:05,728 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 10:09:05,729 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 10:09:05,730 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 10:09:05,730 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 10:09:05,731 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 10:09:05,731 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 10:09:05,732 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 10:09:05,733 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 10:09:05,733 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 10:09:05,734 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-21 10:09:05,764 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 10:09:05,765 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 10:09:05,770 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 10:09:05,770 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 10:09:05,770 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 10:09:05,771 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 10:09:05,771 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 10:09:05,771 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 10:09:05,771 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 10:09:05,771 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 10:09:05,772 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 10:09:05,772 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 10:09:05,772 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 10:09:05,772 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 10:09:05,772 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 10:09:05,773 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 10:09:05,773 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 10:09:05,773 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 10:09:05,773 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 10:09:05,774 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 10:09:05,774 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 10:09:05,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 10:09:05,774 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 10:09:05,774 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 10:09:05,775 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 10:09:05,775 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 10:09:05,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 10:09:05,775 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 10:09:05,775 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 10:09:05,776 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> false [2020-09-21 10:09:06,254 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 10:09:06,278 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 10:09:06,283 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 10:09:06,284 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 10:09:06,285 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 10:09:06,286 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product16.cil.c [2020-09-21 10:09:06,377 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0eee0c27f/3602c4b6d04943fc8cf6e98db1868b1d/FLAG8785487a0 [2020-09-21 10:09:06,964 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 10:09:06,965 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product16.cil.c [2020-09-21 10:09:06,979 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0eee0c27f/3602c4b6d04943fc8cf6e98db1868b1d/FLAG8785487a0 [2020-09-21 10:09:07,275 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0eee0c27f/3602c4b6d04943fc8cf6e98db1868b1d [2020-09-21 10:09:07,288 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 10:09:07,294 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 10:09:07,297 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 10:09:07,297 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 10:09:07,302 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 10:09:07,303 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 10:09:07" (1/1) ... [2020-09-21 10:09:07,307 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19da8246 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:09:07, skipping insertion in model container [2020-09-21 10:09:07,307 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 10:09:07" (1/1) ... [2020-09-21 10:09:07,316 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 10:09:07,368 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 10:09:07,839 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 10:09:07,857 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 10:09:07,932 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 10:09:07,979 INFO L208 MainTranslator]: Completed translation [2020-09-21 10:09:07,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:09:07 WrapperNode [2020-09-21 10:09:07,981 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 10:09:07,982 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 10:09:07,982 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 10:09:07,982 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 10:09:08,000 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:09:07" (1/1) ... [2020-09-21 10:09:08,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:09:07" (1/1) ... [2020-09-21 10:09:08,022 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:09:07" (1/1) ... [2020-09-21 10:09:08,023 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:09:07" (1/1) ... [2020-09-21 10:09:08,052 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:09:07" (1/1) ... [2020-09-21 10:09:08,067 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:09:07" (1/1) ... [2020-09-21 10:09:08,074 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:09:07" (1/1) ... [2020-09-21 10:09:08,086 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 10:09:08,087 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 10:09:08,087 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 10:09:08,087 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 10:09:08,091 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:09:07" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-21 10:09:08,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 10:09:08,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 10:09:08,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 10:09:08,180 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 10:09:08,181 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 10:09:08,181 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 10:09:08,181 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 10:09:08,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 10:09:08,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 10:09:08,182 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 10:09:08,182 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 10:09:08,182 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 10:09:08,182 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 10:09:08,182 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 10:09:08,183 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 10:09:08,183 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 10:09:08,183 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 10:09:08,183 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 10:09:08,184 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 10:09:08,184 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 10:09:08,184 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 10:09:08,184 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 10:09:08,184 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 10:09:08,185 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 10:09:08,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 10:09:08,185 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 10:09:08,185 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-21 10:09:08,185 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 10:09:08,185 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-21 10:09:08,186 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 10:09:08,186 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 10:09:08,186 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 10:09:08,186 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 10:09:08,186 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 10:09:08,186 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-21 10:09:08,187 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-21 10:09:08,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-21 10:09:08,187 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 10:09:08,187 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 10:09:08,187 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 10:09:08,187 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 10:09:08,187 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 10:09:08,188 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 10:09:08,188 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 10:09:08,188 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 10:09:08,188 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 10:09:08,188 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 10:09:08,188 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 10:09:08,188 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 10:09:08,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 10:09:08,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 10:09:08,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 10:09:08,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 10:09:08,189 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 10:09:08,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 10:09:08,190 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 10:09:08,190 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 10:09:08,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 10:09:08,190 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 10:09:08,190 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 10:09:08,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 10:09:08,191 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 10:09:08,191 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 10:09:08,191 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 10:09:08,191 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 10:09:08,192 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 10:09:08,192 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 10:09:08,192 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 10:09:08,192 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 10:09:08,192 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 10:09:08,192 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 10:09:08,193 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 10:09:08,193 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 10:09:08,193 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 10:09:08,193 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 10:09:08,193 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 10:09:08,193 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 10:09:08,194 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 10:09:08,194 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 10:09:08,194 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 10:09:08,194 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-21 10:09:08,194 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-21 10:09:08,194 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-21 10:09:08,195 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 10:09:08,195 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-21 10:09:08,195 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 10:09:08,195 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-21 10:09:08,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 10:09:08,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 10:09:08,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 10:09:09,184 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 10:09:09,185 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 10:09:09,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 10:09:09 BoogieIcfgContainer [2020-09-21 10:09:09,191 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 10:09:09,192 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 10:09:09,192 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 10:09:09,196 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 10:09:09,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 10:09:07" (1/3) ... [2020-09-21 10:09:09,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@da3ddd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 10:09:09, skipping insertion in model container [2020-09-21 10:09:09,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:09:07" (2/3) ... [2020-09-21 10:09:09,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@da3ddd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 10:09:09, skipping insertion in model container [2020-09-21 10:09:09,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 10:09:09" (3/3) ... [2020-09-21 10:09:09,201 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product16.cil.c [2020-09-21 10:09:09,213 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 10:09:09,224 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 10:09:09,246 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 10:09:09,277 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 10:09:09,277 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 10:09:09,277 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 10:09:09,277 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 10:09:09,278 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 10:09:09,278 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 10:09:09,278 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 10:09:09,278 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 10:09:09,302 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states. [2020-09-21 10:09:09,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-09-21 10:09:09,313 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:09:09,314 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:09:09,315 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:09:09,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:09:09,323 INFO L82 PathProgramCache]: Analyzing trace with hash -1532249009, now seen corresponding path program 1 times [2020-09-21 10:09:09,334 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:09:09,335 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1039977975] [2020-09-21 10:09:09,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:09:09,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:10,083 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 10:09:10,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:09:10,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:10,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:09:10,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:10,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 10:09:10,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:10,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 10:09:10,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:10,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 10:09:10,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:10,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 10:09:10,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:10,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 10:09:10,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:10,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 10:09:10,205 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1039977975] [2020-09-21 10:09:10,207 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:09:10,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 10:09:10,208 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710279361] [2020-09-21 10:09:10,214 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 10:09:10,215 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:09:10,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 10:09:10,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 10:09:10,236 INFO L87 Difference]: Start difference. First operand 163 states. Second operand 3 states. [2020-09-21 10:09:11,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:09:11,363 INFO L93 Difference]: Finished difference Result 266 states and 350 transitions. [2020-09-21 10:09:11,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 10:09:11,366 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-09-21 10:09:11,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:09:11,383 INFO L225 Difference]: With dead ends: 266 [2020-09-21 10:09:11,383 INFO L226 Difference]: Without dead ends: 145 [2020-09-21 10:09:11,389 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 10:09:11,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-09-21 10:09:11,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 112. [2020-09-21 10:09:11,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-09-21 10:09:11,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 130 transitions. [2020-09-21 10:09:11,490 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 130 transitions. Word has length 46 [2020-09-21 10:09:11,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:09:11,490 INFO L479 AbstractCegarLoop]: Abstraction has 112 states and 130 transitions. [2020-09-21 10:09:11,491 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 10:09:11,491 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 130 transitions. [2020-09-21 10:09:11,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-09-21 10:09:11,502 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:09:11,502 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:09:11,503 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 10:09:11,503 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:09:11,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:09:11,503 INFO L82 PathProgramCache]: Analyzing trace with hash -1264772962, now seen corresponding path program 1 times [2020-09-21 10:09:11,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:09:11,504 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [785860996] [2020-09-21 10:09:11,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:09:11,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:11,878 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 10:09:11,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:09:11,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:11,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:09:11,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:11,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 10:09:11,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:11,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 10:09:11,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:11,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 10:09:11,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:11,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 10:09:11,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:11,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 10:09:11,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:11,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 10:09:11,980 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [785860996] [2020-09-21 10:09:11,980 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:09:11,980 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 10:09:11,981 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951610291] [2020-09-21 10:09:11,983 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 10:09:11,983 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:09:11,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 10:09:11,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 10:09:11,984 INFO L87 Difference]: Start difference. First operand 112 states and 130 transitions. Second operand 4 states. [2020-09-21 10:09:12,416 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 10:09:13,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:09:13,035 INFO L93 Difference]: Finished difference Result 189 states and 229 transitions. [2020-09-21 10:09:13,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 10:09:13,036 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-09-21 10:09:13,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:09:13,038 INFO L225 Difference]: With dead ends: 189 [2020-09-21 10:09:13,039 INFO L226 Difference]: Without dead ends: 129 [2020-09-21 10:09:13,040 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 10:09:13,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-09-21 10:09:13,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 103. [2020-09-21 10:09:13,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-09-21 10:09:13,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 118 transitions. [2020-09-21 10:09:13,075 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 118 transitions. Word has length 47 [2020-09-21 10:09:13,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:09:13,076 INFO L479 AbstractCegarLoop]: Abstraction has 103 states and 118 transitions. [2020-09-21 10:09:13,076 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 10:09:13,076 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 118 transitions. [2020-09-21 10:09:13,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-21 10:09:13,078 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:09:13,078 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:09:13,079 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 10:09:13,079 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:09:13,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:09:13,079 INFO L82 PathProgramCache]: Analyzing trace with hash 1057002583, now seen corresponding path program 1 times [2020-09-21 10:09:13,079 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:09:13,080 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [125890171] [2020-09-21 10:09:13,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:09:13,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:13,445 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 10:09:13,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:09:13,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:13,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:09:13,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:13,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 10:09:13,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:13,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 10:09:13,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:13,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 10:09:13,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:13,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 10:09:13,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:13,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 10:09:13,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:13,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 10:09:13,551 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [125890171] [2020-09-21 10:09:13,552 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:09:13,552 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 10:09:13,552 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774628317] [2020-09-21 10:09:13,553 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 10:09:13,553 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:09:13,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 10:09:13,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-21 10:09:13,553 INFO L87 Difference]: Start difference. First operand 103 states and 118 transitions. Second operand 8 states. [2020-09-21 10:09:13,990 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 10:09:14,346 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:09:14,648 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:09:14,922 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:09:15,677 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 10:09:17,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:09:17,132 INFO L93 Difference]: Finished difference Result 360 states and 445 transitions. [2020-09-21 10:09:17,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 10:09:17,133 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 52 [2020-09-21 10:09:17,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:09:17,139 INFO L225 Difference]: With dead ends: 360 [2020-09-21 10:09:17,140 INFO L226 Difference]: Without dead ends: 281 [2020-09-21 10:09:17,141 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-09-21 10:09:17,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2020-09-21 10:09:17,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 220. [2020-09-21 10:09:17,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-09-21 10:09:17,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 264 transitions. [2020-09-21 10:09:17,218 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 264 transitions. Word has length 52 [2020-09-21 10:09:17,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:09:17,219 INFO L479 AbstractCegarLoop]: Abstraction has 220 states and 264 transitions. [2020-09-21 10:09:17,219 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 10:09:17,219 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 264 transitions. [2020-09-21 10:09:17,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-21 10:09:17,221 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:09:17,222 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:09:17,222 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 10:09:17,222 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:09:17,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:09:17,223 INFO L82 PathProgramCache]: Analyzing trace with hash -1843591259, now seen corresponding path program 1 times [2020-09-21 10:09:17,223 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:09:17,223 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1771779845] [2020-09-21 10:09:17,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:09:17,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:17,653 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 10:09:17,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:09:17,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:17,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:09:17,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:17,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 10:09:17,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:17,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 10:09:17,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:17,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 10:09:17,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:17,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 10:09:17,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:17,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 10:09:17,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:17,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 10:09:17,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:17,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 10:09:17,787 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1771779845] [2020-09-21 10:09:17,788 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:09:17,788 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-21 10:09:17,788 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455360980] [2020-09-21 10:09:17,789 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-21 10:09:17,789 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:09:17,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-21 10:09:17,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-09-21 10:09:17,790 INFO L87 Difference]: Start difference. First operand 220 states and 264 transitions. Second operand 12 states. [2020-09-21 10:09:18,245 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 10:09:18,582 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:09:18,901 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:09:19,220 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:09:19,821 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 10:09:20,737 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:09:21,157 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:09:21,500 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:09:21,831 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 10:09:22,135 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 10:09:22,539 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:09:22,895 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:09:23,210 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:09:24,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:09:24,339 INFO L93 Difference]: Finished difference Result 875 states and 1174 transitions. [2020-09-21 10:09:24,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-21 10:09:24,340 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 57 [2020-09-21 10:09:24,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:09:24,348 INFO L225 Difference]: With dead ends: 875 [2020-09-21 10:09:24,348 INFO L226 Difference]: Without dead ends: 679 [2020-09-21 10:09:24,351 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2020-09-21 10:09:24,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2020-09-21 10:09:24,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 582. [2020-09-21 10:09:24,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 582 states. [2020-09-21 10:09:24,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 718 transitions. [2020-09-21 10:09:24,496 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 718 transitions. Word has length 57 [2020-09-21 10:09:24,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:09:24,496 INFO L479 AbstractCegarLoop]: Abstraction has 582 states and 718 transitions. [2020-09-21 10:09:24,497 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-21 10:09:24,497 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 718 transitions. [2020-09-21 10:09:24,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-21 10:09:24,500 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:09:24,500 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:09:24,500 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 10:09:24,500 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:09:24,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:09:24,501 INFO L82 PathProgramCache]: Analyzing trace with hash -1600095125, now seen corresponding path program 1 times [2020-09-21 10:09:24,501 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:09:24,501 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [344709862] [2020-09-21 10:09:24,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:09:24,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:24,807 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 10:09:24,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:09:24,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:24,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:09:24,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:24,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 10:09:24,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:24,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 10:09:24,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:24,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 10:09:24,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:24,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 10:09:24,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:24,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 10:09:24,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:24,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-21 10:09:24,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:24,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-21 10:09:24,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:24,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 10:09:24,900 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [344709862] [2020-09-21 10:09:24,900 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:09:24,901 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-21 10:09:24,901 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829518029] [2020-09-21 10:09:24,901 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 10:09:24,902 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:09:24,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 10:09:24,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 10:09:24,902 INFO L87 Difference]: Start difference. First operand 582 states and 718 transitions. Second operand 6 states. [2020-09-21 10:09:25,273 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 10:09:26,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:09:26,207 INFO L93 Difference]: Finished difference Result 1027 states and 1340 transitions. [2020-09-21 10:09:26,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-21 10:09:26,209 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 61 [2020-09-21 10:09:26,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:09:26,213 INFO L225 Difference]: With dead ends: 1027 [2020-09-21 10:09:26,213 INFO L226 Difference]: Without dead ends: 469 [2020-09-21 10:09:26,217 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-09-21 10:09:26,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2020-09-21 10:09:26,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 402. [2020-09-21 10:09:26,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2020-09-21 10:09:26,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 461 transitions. [2020-09-21 10:09:26,296 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 461 transitions. Word has length 61 [2020-09-21 10:09:26,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:09:26,296 INFO L479 AbstractCegarLoop]: Abstraction has 402 states and 461 transitions. [2020-09-21 10:09:26,296 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 10:09:26,297 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 461 transitions. [2020-09-21 10:09:26,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-09-21 10:09:26,299 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:09:26,299 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:09:26,299 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 10:09:26,300 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:09:26,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:09:26,300 INFO L82 PathProgramCache]: Analyzing trace with hash -2108479595, now seen corresponding path program 1 times [2020-09-21 10:09:26,300 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:09:26,301 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1059552013] [2020-09-21 10:09:26,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:09:26,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:26,635 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 10:09:26,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:09:26,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:26,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:09:26,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:26,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 10:09:26,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:26,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 10:09:26,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:26,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 10:09:26,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:26,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 10:09:26,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:26,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:09:26,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:26,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-21 10:09:26,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:26,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:09:26,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:26,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 10:09:26,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:26,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-21 10:09:26,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:26,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-21 10:09:26,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:26,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-21 10:09:26,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:26,793 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 13 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-21 10:09:26,794 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1059552013] [2020-09-21 10:09:26,794 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 10:09:26,794 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-21 10:09:26,794 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707838480] [2020-09-21 10:09:26,795 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 10:09:26,795 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:09:26,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 10:09:26,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-09-21 10:09:26,796 INFO L87 Difference]: Start difference. First operand 402 states and 461 transitions. Second operand 10 states. [2020-09-21 10:09:27,536 WARN L193 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 186 [2020-09-21 10:09:28,216 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 10:09:29,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:09:29,117 INFO L93 Difference]: Finished difference Result 565 states and 675 transitions. [2020-09-21 10:09:29,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-21 10:09:29,118 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 89 [2020-09-21 10:09:29,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:09:29,119 INFO L225 Difference]: With dead ends: 565 [2020-09-21 10:09:29,119 INFO L226 Difference]: Without dead ends: 0 [2020-09-21 10:09:29,121 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2020-09-21 10:09:29,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-21 10:09:29,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-21 10:09:29,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-21 10:09:29,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-21 10:09:29,122 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 89 [2020-09-21 10:09:29,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:09:29,122 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-21 10:09:29,122 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 10:09:29,122 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-21 10:09:29,122 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-21 10:09:29,122 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 10:09:29,125 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-21 10:09:29,343 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:09:29,516 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:09:29,887 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 224 [2020-09-21 10:09:30,261 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-21 10:09:30,688 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 21 [2020-09-21 10:09:31,048 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-21 10:09:31,421 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-09-21 10:09:31,813 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-09-21 10:09:32,165 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-21 10:09:32,560 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 25 [2020-09-21 10:09:32,738 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:09:32,902 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:09:33,255 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 224 [2020-09-21 10:09:33,611 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-21 10:09:33,940 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-09-21 10:09:34,504 WARN L193 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 224 [2020-09-21 10:09:34,829 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-09-21 10:09:35,379 WARN L193 SmtUtils]: Spent 549.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 223 [2020-09-21 10:09:35,707 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-09-21 10:09:36,264 WARN L193 SmtUtils]: Spent 549.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 223 [2020-09-21 10:09:36,829 WARN L193 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 224 [2020-09-21 10:09:37,155 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-09-21 10:09:37,706 WARN L193 SmtUtils]: Spent 548.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 223 [2020-09-21 10:09:38,100 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 196 [2020-09-21 10:09:38,259 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:09:38,604 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-09-21 10:09:38,956 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 224 [2020-09-21 10:09:39,309 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-21 10:09:39,463 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:09:39,623 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:09:40,175 WARN L193 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 229 DAG size of output: 223 [2020-09-21 10:09:40,505 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-09-21 10:09:41,051 WARN L193 SmtUtils]: Spent 544.00 ms on a formula simplification. DAG size of input: 229 DAG size of output: 223 [2020-09-21 10:09:41,381 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-09-21 10:09:41,926 WARN L193 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 229 DAG size of output: 223 [2020-09-21 10:09:42,065 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 10:09:42,243 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:09:42,597 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 224 [2020-09-21 10:09:42,749 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:09:43,099 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-21 10:09:43,260 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:09:43,612 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-21 10:09:43,958 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-09-21 10:09:44,118 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:09:44,470 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-21 10:09:44,634 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:09:44,990 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-09-21 10:09:45,353 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 224 [2020-09-21 10:09:45,709 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-21 10:09:45,866 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:09:46,019 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:09:46,371 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-21 10:09:46,536 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:09:46,694 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:09:46,852 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:09:47,200 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-09-21 10:09:47,552 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-21 10:09:47,905 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 224 [2020-09-21 10:09:48,256 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-21 10:09:48,607 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-21 10:09:48,764 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:09:49,115 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-21 10:09:49,468 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-21 10:09:49,790 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-21 10:09:50,102 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 189 [2020-09-21 10:09:50,422 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-21 10:09:50,767 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-09-21 10:09:51,118 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-21 10:09:51,469 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-21 10:09:51,822 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 224 [2020-09-21 10:09:52,127 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-21 10:09:52,478 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-21 10:09:52,637 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:09:52,983 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-09-21 10:09:53,334 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 224 [2020-09-21 10:09:53,690 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-21 10:09:53,843 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:09:54,000 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:09:54,601 WARN L193 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 266 DAG size of output: 28 [2020-09-21 10:09:54,982 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-21 10:09:55,249 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 193 [2020-09-21 10:09:55,860 WARN L193 SmtUtils]: Spent 608.00 ms on a formula simplification. DAG size of input: 229 DAG size of output: 225 [2020-09-21 10:09:56,120 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 190 [2020-09-21 10:09:56,605 WARN L193 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 224 [2020-09-21 10:09:56,873 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 193 [2020-09-21 10:09:57,370 WARN L193 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 224 [2020-09-21 10:09:57,936 WARN L193 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 222 [2020-09-21 10:09:58,275 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 193 [2020-09-21 10:09:58,760 WARN L193 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 224 [2020-09-21 10:09:59,114 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-21 10:09:59,473 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-21 10:09:59,630 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:09:59,793 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:10:00,146 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 224 [2020-09-21 10:10:00,501 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-21 10:10:00,855 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-21 10:10:01,232 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 21 [2020-09-21 10:10:01,619 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 21 [2020-09-21 10:10:01,970 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-21 10:10:02,309 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-09-21 10:10:02,875 WARN L193 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 229 DAG size of output: 223 [2020-09-21 10:10:03,435 WARN L193 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 229 DAG size of output: 223 [2020-09-21 10:10:03,994 WARN L193 SmtUtils]: Spent 555.00 ms on a formula simplification. DAG size of input: 229 DAG size of output: 223 [2020-09-21 10:10:04,333 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-09-21 10:10:05,197 WARN L193 SmtUtils]: Spent 807.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 18 [2020-09-21 10:10:05,777 WARN L193 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 22 [2020-09-21 10:10:06,322 WARN L193 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 24 [2020-09-21 10:10:06,876 WARN L193 SmtUtils]: Spent 549.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 24 [2020-09-21 10:10:06,999 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 1 [2020-09-21 10:10:07,848 WARN L193 SmtUtils]: Spent 778.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 18 [2020-09-21 10:10:08,556 WARN L193 SmtUtils]: Spent 702.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 22 [2020-09-21 10:10:08,830 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 1 [2020-09-21 10:10:09,440 WARN L193 SmtUtils]: Spent 608.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 17 [2020-09-21 10:10:09,686 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 10:10:10,501 WARN L193 SmtUtils]: Spent 762.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 19 [2020-09-21 10:10:10,659 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 1 [2020-09-21 10:10:10,777 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 1 [2020-09-21 10:10:11,579 WARN L193 SmtUtils]: Spent 797.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 18 [2020-09-21 10:10:11,697 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 1 [2020-09-21 10:10:12,214 WARN L193 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 22