/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 --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product27.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:39:10,064 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:39:10,068 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:39:10,112 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:39:10,112 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:39:10,124 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:39:10,126 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:39:10,130 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:39:10,133 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:39:10,137 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:39:10,138 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:39:10,139 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:39:10,139 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:39:10,143 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:39:10,146 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:39:10,148 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:39:10,150 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:39:10,152 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:39:10,153 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:39:10,164 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:39:10,166 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:39:10,167 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:39:10,169 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:39:10,169 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:39:10,172 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:39:10,173 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:39:10,173 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:39:10,176 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:39:10,177 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:39:10,179 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:39:10,179 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:39:10,181 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:39:10,182 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:39:10,183 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:39:10,184 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:39:10,184 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:39:10,186 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:39:10,186 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:39:10,186 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:39:10,187 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:39:10,189 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:39:10,190 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 [2020-09-25 07:39:10,241 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:39:10,241 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:39:10,243 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:39:10,244 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:39:10,244 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:39:10,244 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:39:10,245 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:39:10,245 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:39:10,245 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:39:10,245 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:39:10,246 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:39:10,247 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:39:10,247 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:39:10,247 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:39:10,247 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:39:10,248 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:39:10,248 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:39:10,248 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:39:10,248 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:39:10,249 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:39:10,249 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:39:10,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:39:10,249 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:39:10,250 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:39:10,250 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:39:10,250 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:39:10,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:39:10,250 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:39:10,251 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:39:10,251 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.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:39:10,724 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:39:10,743 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:39:10,748 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:39:10,750 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:39:10,750 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:39:10,752 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product27.cil.c [2020-09-25 07:39:10,835 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/64cf3dbf6/685600c2c6e54972a74223adbfebc847/FLAG371ba454f [2020-09-25 07:39:11,475 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:39:11,476 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product27.cil.c [2020-09-25 07:39:11,489 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/64cf3dbf6/685600c2c6e54972a74223adbfebc847/FLAG371ba454f [2020-09-25 07:39:11,762 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/64cf3dbf6/685600c2c6e54972a74223adbfebc847 [2020-09-25 07:39:11,777 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:39:11,784 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:39:11,788 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:39:11,788 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:39:11,793 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:39:11,794 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:39:11" (1/1) ... [2020-09-25 07:39:11,799 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5db1276a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:39:11, skipping insertion in model container [2020-09-25 07:39:11,799 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:39:11" (1/1) ... [2020-09-25 07:39:11,809 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:39:11,883 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:39:12,378 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:39:12,404 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:39:12,483 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:39:12,522 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:39:12,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:39:12 WrapperNode [2020-09-25 07:39:12,523 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:39:12,528 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:39:12,528 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:39:12,528 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:39:12,547 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:39:12" (1/1) ... [2020-09-25 07:39:12,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:39:12" (1/1) ... [2020-09-25 07:39:12,569 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:39:12" (1/1) ... [2020-09-25 07:39:12,570 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:39:12" (1/1) ... [2020-09-25 07:39:12,620 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:39:12" (1/1) ... [2020-09-25 07:39:12,637 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:39:12" (1/1) ... [2020-09-25 07:39:12,643 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:39:12" (1/1) ... [2020-09-25 07:39:12,651 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:39:12,652 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:39:12,652 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:39:12,652 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:39:12,653 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:39:12" (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 [2020-09-25 07:39:12,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:39:12,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:39:12,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 07:39:12,747 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 07:39:12,748 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 07:39:12,748 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 07:39:12,748 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 07:39:12,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-25 07:39:12,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-25 07:39:12,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-25 07:39:12,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 07:39:12,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 07:39:12,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 07:39:12,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 07:39:12,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 07:39:12,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 07:39:12,752 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 07:39:12,753 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 07:39:12,753 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 07:39:12,753 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 07:39:12,753 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 07:39:12,754 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 07:39:12,754 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 07:39:12,754 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 07:39:12,755 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 07:39:12,755 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 07:39:12,755 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 07:39:12,756 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 07:39:12,756 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:39:12,756 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 07:39:12,756 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 07:39:12,756 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 07:39:12,756 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 07:39:12,757 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 07:39:12,757 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 07:39:12,757 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 07:39:12,757 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 07:39:12,757 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 07:39:12,757 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 07:39:12,759 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 07:39:12,759 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 07:39:12,759 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:39:12,759 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:39:12,759 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 07:39:12,760 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 07:39:12,760 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 07:39:12,760 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 07:39:12,760 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 07:39:12,760 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 07:39:12,761 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 07:39:12,761 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 07:39:12,761 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-25 07:39:12,761 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-25 07:39:12,762 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-25 07:39:12,762 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 07:39:12,762 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 07:39:12,762 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 07:39:12,762 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 07:39:12,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 07:39:12,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 07:39:12,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 07:39:12,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 07:39:12,763 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 07:39:12,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:39:12,764 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 07:39:12,764 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 07:39:12,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 07:39:12,764 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 07:39:12,764 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 07:39:12,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 07:39:12,765 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 07:39:12,767 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 07:39:12,767 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 07:39:12,767 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 07:39:12,767 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 07:39:12,767 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 07:39:12,767 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 07:39:12,768 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 07:39:12,768 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 07:39:12,768 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 07:39:12,768 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 07:39:12,768 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 07:39:12,768 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 07:39:12,769 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 07:39:12,769 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:39:12,769 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 07:39:12,769 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 07:39:12,769 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 07:39:12,769 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 07:39:12,769 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 07:39:12,770 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 07:39:12,770 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 07:39:12,770 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 07:39:12,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:39:12,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 07:39:12,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:39:14,100 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:39:14,100 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 07:39:14,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:39:14 BoogieIcfgContainer [2020-09-25 07:39:14,113 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:39:14,116 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:39:14,116 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:39:14,120 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:39:14,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:39:11" (1/3) ... [2020-09-25 07:39:14,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cd257e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:39:14, skipping insertion in model container [2020-09-25 07:39:14,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:39:12" (2/3) ... [2020-09-25 07:39:14,122 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cd257e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:39:14, skipping insertion in model container [2020-09-25 07:39:14,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:39:14" (3/3) ... [2020-09-25 07:39:14,126 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product27.cil.c [2020-09-25 07:39:14,140 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:39:14,155 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:39:14,179 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:39:14,223 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:39:14,223 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:39:14,223 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:39:14,224 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:39:14,224 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:39:14,224 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:39:14,224 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:39:14,224 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:39:14,254 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states. [2020-09-25 07:39:14,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 07:39:14,273 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:39:14,274 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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] [2020-09-25 07:39:14,275 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:39:14,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:39:14,283 INFO L82 PathProgramCache]: Analyzing trace with hash -971756430, now seen corresponding path program 1 times [2020-09-25 07:39:14,294 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:39:14,294 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [906578863] [2020-09-25 07:39:14,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:39:14,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:14,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:15,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:16,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:16,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:19,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:19,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:19,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-25 07:39:19,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:39:19,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-09-25 07:39:19,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:19,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:19,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:19,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 07:39:19,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:19,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 07:39:20,268 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:39:20,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:39:20,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:20,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:20,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:20,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:39:20,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:20,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-09-25 07:39:20,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:20,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:20,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:20,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:20,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:20,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:20,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:39:20,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:20,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:20,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:20,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:39:20,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:20,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:39:20,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:20,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:20,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:20,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:20,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:20,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:20,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:39:20,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:20,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:20,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:20,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:39:20,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:20,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:39:20,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:20,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:20,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:20,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:20,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:20,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:20,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:39:20,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:20,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:20,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:20,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:20,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:20,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:39:20,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:20,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:20,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:20,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:20,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:20,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:20,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:39:20,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:20,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:20,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:20,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:39:20,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:20,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:20,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:20,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:20,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:20,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:20,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:20,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:20,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:39:20,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:20,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:20,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:20,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:39:20,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:20,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:20,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:20,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:20,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:20,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:20,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:20,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:20,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 07:39:20,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:20,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:20,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:20,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:39:20,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:20,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:39:20,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:20,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:20,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:20,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 07:39:20,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:20,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:20,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:39:20,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:20,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:20,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:20,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:20,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:20,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:20,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:20,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:20,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:20,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:20,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:20,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:20,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 07:39:20,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:20,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:20,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:20,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:20,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:20,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:20,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:20,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:20,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:20,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:39:20,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:20,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:20,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 07:39:20,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:20,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:20,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:20,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:20,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:20,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:20,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:20,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:20,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:20,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:39:20,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:20,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:20,646 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 07:39:20,647 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [906578863] [2020-09-25 07:39:20,649 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:39:20,649 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:39:20,652 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957305914] [2020-09-25 07:39:20,660 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:39:20,660 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:39:20,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:39:20,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:39:20,683 INFO L87 Difference]: Start difference. First operand 294 states. Second operand 4 states. [2020-09-25 07:39:22,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:39:22,088 INFO L93 Difference]: Finished difference Result 446 states and 527 transitions. [2020-09-25 07:39:22,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 07:39:22,090 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-25 07:39:22,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:39:22,110 INFO L225 Difference]: With dead ends: 446 [2020-09-25 07:39:22,110 INFO L226 Difference]: Without dead ends: 288 [2020-09-25 07:39:22,116 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:39:22,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2020-09-25 07:39:22,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 243. [2020-09-25 07:39:22,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2020-09-25 07:39:22,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 264 transitions. [2020-09-25 07:39:22,223 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 264 transitions. Word has length 160 [2020-09-25 07:39:22,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:39:22,225 INFO L479 AbstractCegarLoop]: Abstraction has 243 states and 264 transitions. [2020-09-25 07:39:22,225 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:39:22,225 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 264 transitions. [2020-09-25 07:39:22,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 07:39:22,230 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:39:22,230 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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] [2020-09-25 07:39:22,231 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:39:22,231 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:39:22,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:39:22,232 INFO L82 PathProgramCache]: Analyzing trace with hash 888154027, now seen corresponding path program 1 times [2020-09-25 07:39:22,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:39:22,232 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [844083869] [2020-09-25 07:39:22,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:39:22,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:22,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:22,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:24,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:24,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:25,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:27,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:27,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-25 07:39:27,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:39:27,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-09-25 07:39:27,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:27,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:27,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:39:27,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 07:39:27,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:39:27,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:27,639 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:39:27,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:39:27,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:27,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:27,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:27,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:39:27,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:27,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-09-25 07:39:27,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:27,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:27,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:27,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:27,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:27,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:27,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:39:27,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:27,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:27,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:27,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:39:27,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:27,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:27,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:27,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:27,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:27,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:27,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:27,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:39:27,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:39:27,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:27,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:27,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:27,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:39:27,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:27,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:27,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:27,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:27,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:27,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:27,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:27,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:27,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:39:27,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:27,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:27,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:27,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:27,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:27,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:39:27,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:27,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:27,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:27,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:27,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:27,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:27,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:39:27,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:27,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:27,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:27,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:39:27,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:27,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:27,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:27,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:27,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:27,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:27,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:27,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 07:39:27,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:39:27,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:27,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:27,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:27,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:39:27,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:27,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:27,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:27,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:27,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:27,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:27,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:27,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:27,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 07:39:27,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:27,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:27,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:27,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:39:27,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:27,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:39:27,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:27,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:27,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:27,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 07:39:27,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:27,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:27,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:39:27,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:27,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:27,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:27,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:27,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:27,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:27,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:27,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:27,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:27,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:27,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:27,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:27,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 07:39:27,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:27,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:27,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:27,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:27,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:27,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:27,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:27,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:27,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:27,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:39:27,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:27,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:27,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 07:39:27,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:27,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:27,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:27,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:27,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:27,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:27,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:27,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:27,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:27,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:39:27,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:27,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:27,928 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 07:39:27,929 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [844083869] [2020-09-25 07:39:27,929 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:39:27,930 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:39:27,930 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137937473] [2020-09-25 07:39:27,932 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:39:27,932 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:39:27,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:39:27,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:39:27,933 INFO L87 Difference]: Start difference. First operand 243 states and 264 transitions. Second operand 5 states. [2020-09-25 07:39:28,622 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:39:29,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:39:29,496 INFO L93 Difference]: Finished difference Result 369 states and 415 transitions. [2020-09-25 07:39:29,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:39:29,497 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-25 07:39:29,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:39:29,506 INFO L225 Difference]: With dead ends: 369 [2020-09-25 07:39:29,511 INFO L226 Difference]: Without dead ends: 277 [2020-09-25 07:39:29,513 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:39:29,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2020-09-25 07:39:29,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 233. [2020-09-25 07:39:29,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-09-25 07:39:29,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 251 transitions. [2020-09-25 07:39:29,589 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 251 transitions. Word has length 161 [2020-09-25 07:39:29,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:39:29,590 INFO L479 AbstractCegarLoop]: Abstraction has 233 states and 251 transitions. [2020-09-25 07:39:29,590 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:39:29,590 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 251 transitions. [2020-09-25 07:39:29,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-25 07:39:29,595 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:39:29,596 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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] [2020-09-25 07:39:29,596 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:39:29,596 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:39:29,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:39:29,597 INFO L82 PathProgramCache]: Analyzing trace with hash 1362901000, now seen corresponding path program 1 times [2020-09-25 07:39:29,597 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:39:29,597 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2024829111] [2020-09-25 07:39:29,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:39:29,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:29,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:30,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:30,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:33,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:34,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:34,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-25 07:39:34,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:39:34,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 07:39:34,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:34,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:34,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:39:34,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-09-25 07:39:34,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 07:39:34,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:34,989 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:39:34,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:39:35,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:35,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:35,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:35,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:39:35,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:35,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-09-25 07:39:35,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:35,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:35,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:39:35,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:35,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 07:39:35,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:39:35,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:39:35,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:35,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:35,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:35,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:39:35,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:35,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:35,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:35,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:35,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:39:35,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:35,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:39:35,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:39:35,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:39:35,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:35,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:35,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:35,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:39:35,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:35,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:35,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:35,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:35,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:39:35,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:35,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:39:35,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:39:35,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:39:35,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:35,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:35,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:35,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:35,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:35,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:39:35,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:35,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:35,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:39:35,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:35,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:39:35,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:35,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:39:35,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:35,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:35,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:35,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:39:35,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:35,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:35,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:35,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:35,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:39:35,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:35,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:39:35,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:39:35,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:39:35,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:35,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:35,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:35,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:39:35,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:35,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:39:35,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:35,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:35,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:39:35,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:35,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 07:39:35,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:35,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 07:39:35,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:35,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:35,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:35,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:39:35,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:35,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:39:35,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:35,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:35,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:39:35,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:35,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 07:39:35,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:35,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:39:35,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:35,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:35,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:35,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:35,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:35,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:39:35,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:35,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:35,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:35,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:35,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:35,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:35,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 07:39:35,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:35,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:35,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:35,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:35,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:35,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:39:35,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:35,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:35,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:35,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:39:35,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:35,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:35,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 07:39:35,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:35,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:35,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:35,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:35,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:35,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:35,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:35,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:35,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:35,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:39:35,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:35,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:35,442 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 07:39:35,442 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2024829111] [2020-09-25 07:39:35,442 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:39:35,443 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:39:35,443 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762675735] [2020-09-25 07:39:35,444 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:39:35,444 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:39:35,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:39:35,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:39:35,445 INFO L87 Difference]: Start difference. First operand 233 states and 251 transitions. Second operand 5 states. [2020-09-25 07:39:36,066 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:39:37,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:39:37,565 INFO L93 Difference]: Finished difference Result 519 states and 593 transitions. [2020-09-25 07:39:37,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:39:37,566 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 170 [2020-09-25 07:39:37,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:39:37,570 INFO L225 Difference]: With dead ends: 519 [2020-09-25 07:39:37,570 INFO L226 Difference]: Without dead ends: 401 [2020-09-25 07:39:37,571 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:39:37,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2020-09-25 07:39:37,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 345. [2020-09-25 07:39:37,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2020-09-25 07:39:37,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 382 transitions. [2020-09-25 07:39:37,630 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 382 transitions. Word has length 170 [2020-09-25 07:39:37,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:39:37,631 INFO L479 AbstractCegarLoop]: Abstraction has 345 states and 382 transitions. [2020-09-25 07:39:37,631 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:39:37,631 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 382 transitions. [2020-09-25 07:39:37,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-09-25 07:39:37,634 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:39:37,634 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 1, 1, 1] [2020-09-25 07:39:37,634 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:39:37,635 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:39:37,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:39:37,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1632396051, now seen corresponding path program 1 times [2020-09-25 07:39:37,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:39:37,635 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1660177579] [2020-09-25 07:39:37,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:39:37,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:37,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:37,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:38,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:40,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:42,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:42,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-09-25 07:39:42,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:39:42,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 07:39:42,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:42,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:42,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:39:42,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-25 07:39:42,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 07:39:42,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:39:43,080 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:39:43,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:39:43,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:43,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:43,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:43,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:39:43,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:43,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-09-25 07:39:43,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:43,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:43,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:43,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:43,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:43,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:43,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:39:43,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:43,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:43,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:43,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:39:43,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:43,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:43,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:43,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:43,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:43,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:43,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:43,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:43,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:39:43,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:43,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:43,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:43,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:39:43,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:43,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:43,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:43,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:43,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:43,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:43,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:43,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:43,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:39:43,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:43,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:43,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:43,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:43,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:43,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:39:43,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:43,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:43,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:43,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:43,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:43,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:43,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:39:43,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:43,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:43,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:43,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:39:43,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:43,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:43,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:43,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:43,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:43,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:43,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:43,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:43,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:39:43,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:43,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:43,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:43,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:39:43,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:43,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:43,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:43,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:43,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:43,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:43,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:43,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:43,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 07:39:43,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:43,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:43,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:43,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:39:43,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:43,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:43,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:43,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:43,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:43,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:43,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:43,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:43,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:39:43,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:43,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:43,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:43,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:43,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:43,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:43,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:43,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:43,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:43,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:43,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:43,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:43,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 07:39:43,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:43,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:43,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:43,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:43,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:39:43,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:39:43,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 07:39:43,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:43,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:43,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:39:43,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:43,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:39:43,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:43,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:39:43,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:43,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:43,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:43,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:39:43,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:43,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:39:43,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:43,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:43,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:39:43,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:43,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:39:43,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:43,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 07:39:43,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:43,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:43,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:43,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:43,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:43,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:39:43,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:43,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:43,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:39:43,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:43,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:39:43,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:43,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-09-25 07:39:43,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:43,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:43,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:43,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:43,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:43,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:39:43,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:43,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:43,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:39:43,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:43,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:39:43,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:43,535 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 07:39:43,535 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1660177579] [2020-09-25 07:39:43,536 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:39:43,536 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 07:39:43,536 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183392667] [2020-09-25 07:39:43,537 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 07:39:43,538 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:39:43,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 07:39:43,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:39:43,539 INFO L87 Difference]: Start difference. First operand 345 states and 382 transitions. Second operand 10 states. [2020-09-25 07:39:44,242 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:39:45,190 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:39:45,567 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 07:39:46,342 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 07:39:46,678 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-25 07:39:46,999 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 07:39:47,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:39:47,047 INFO L93 Difference]: Finished difference Result 546 states and 638 transitions. [2020-09-25 07:39:47,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 07:39:47,047 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 178 [2020-09-25 07:39:47,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:39:47,049 INFO L225 Difference]: With dead ends: 546 [2020-09-25 07:39:47,049 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 07:39:47,051 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-25 07:39:47,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 07:39:47,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 07:39:47,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 07:39:47,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 07:39:47,055 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 178 [2020-09-25 07:39:47,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:39:47,055 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 07:39:47,055 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 07:39:47,056 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 07:39:47,056 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 07:39:47,056 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:39:47,059 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 07:39:47,278 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:39:47,442 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:39:47,609 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:39:47,785 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:39:47,946 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:39:48,122 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:39:48,287 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:39:48,441 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:39:48,603 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:39:48,756 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:39:48,917 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:39:49,071 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:39:49,228 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:39:49,371 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:39:49,528 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:39:49,660 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 9 [2020-09-25 07:39:49,821 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:39:49,979 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:39:50,145 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:39:50,304 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:39:50,469 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:39:50,632 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:39:50,786 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:39:50,944 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:39:51,102 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:39:51,257 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:39:51,411 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:39:51,570 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:39:51,723 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:39:51,881 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:39:52,040 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:39:52,200 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:39:52,358 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:39:52,544 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:39:52,706 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:39:52,863 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:39:53,017 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:39:53,174 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:39:53,345 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:39:53,503 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:39:53,609 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 9 [2020-09-25 07:39:53,767 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:39:53,870 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 9 [2020-09-25 07:39:54,027 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:39:54,184 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:39:54,470 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 9 [2020-09-25 07:39:54,628 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:39:54,740 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 9 [2020-09-25 07:39:54,904 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:39:55,062 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:39:55,216 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:39:55,373 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:39:55,536 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:39:55,690 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:39:55,848 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:39:56,284 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 9 [2020-09-25 07:39:56,509 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 25 [2020-09-25 07:39:56,718 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1 [2020-09-25 07:39:56,943 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1 [2020-09-25 07:39:57,166 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1 [2020-09-25 07:39:57,371 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1 [2020-09-25 07:39:57,632 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 25 [2020-09-25 07:39:57,916 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:39:58,157 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 25 [2020-09-25 07:39:58,608 WARN L193 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 16 [2020-09-25 07:39:58,809 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1 [2020-09-25 07:39:59,064 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1 [2020-09-25 07:39:59,486 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 10 [2020-09-25 07:39:59,850 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 10 [2020-09-25 07:40:00,271 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 10 [2020-09-25 07:40:00,527 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 25 [2020-09-25 07:40:00,764 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 25