/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_product12.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:38:14,631 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:38:14,635 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:38:14,661 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:38:14,662 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:38:14,663 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:38:14,664 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:38:14,666 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:38:14,668 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:38:14,669 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:38:14,670 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:38:14,672 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:38:14,672 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:38:14,673 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:38:14,674 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:38:14,675 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:38:14,676 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:38:14,677 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:38:14,679 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:38:14,681 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:38:14,683 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:38:14,684 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:38:14,686 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:38:14,687 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:38:14,689 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:38:14,689 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:38:14,690 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:38:14,691 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:38:14,691 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:38:14,692 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:38:14,693 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:38:14,693 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:38:14,694 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:38:14,695 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:38:14,696 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:38:14,697 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:38:14,697 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:38:14,698 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:38:14,698 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:38:14,699 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:38:14,700 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:38:14,701 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 07:38:14,727 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:38:14,728 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:38:14,729 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:38:14,729 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:38:14,729 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:38:14,730 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:38:14,730 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:38:14,730 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:38:14,730 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:38:14,730 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:38:14,731 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:38:14,731 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:38:14,731 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:38:14,731 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:38:14,732 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:38:14,732 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:38:14,732 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:38:14,732 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:38:14,732 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:38:14,733 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:38:14,733 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:38:14,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:38:14,733 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:38:14,733 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:38:14,734 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:38:14,734 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:38:14,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:38:14,734 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:38:14,734 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:38:14,735 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 07:38:15,186 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:38:15,202 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:38:15,207 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:38:15,209 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:38:15,211 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:38:15,212 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product12.cil.c [2020-09-25 07:38:15,296 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7cb7d29ba/ee12cc78f6bb4736943054ca4c8ef02a/FLAG828a89284 [2020-09-25 07:38:15,907 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:38:15,908 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product12.cil.c [2020-09-25 07:38:15,937 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7cb7d29ba/ee12cc78f6bb4736943054ca4c8ef02a/FLAG828a89284 [2020-09-25 07:38:16,159 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7cb7d29ba/ee12cc78f6bb4736943054ca4c8ef02a [2020-09-25 07:38:16,172 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:38:16,180 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:38:16,181 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:38:16,181 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:38:16,186 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:38:16,187 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:38:16" (1/1) ... [2020-09-25 07:38:16,191 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31ed4b80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:38:16, skipping insertion in model container [2020-09-25 07:38:16,191 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:38:16" (1/1) ... [2020-09-25 07:38:16,200 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:38:16,252 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:38:16,649 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:38:16,669 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:38:16,850 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:38:16,891 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:38:16,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:38:16 WrapperNode [2020-09-25 07:38:16,892 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:38:16,893 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:38:16,893 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:38:16,893 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:38:16,911 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:38:16" (1/1) ... [2020-09-25 07:38:16,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:38:16" (1/1) ... [2020-09-25 07:38:16,938 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:38:16" (1/1) ... [2020-09-25 07:38:16,939 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:38:16" (1/1) ... [2020-09-25 07:38:16,984 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:38:16" (1/1) ... [2020-09-25 07:38:17,004 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:38:16" (1/1) ... [2020-09-25 07:38:17,014 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:38:16" (1/1) ... [2020-09-25 07:38:17,030 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:38:17,033 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:38:17,033 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:38:17,033 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:38:17,034 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:38:16" (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 07:38:17,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:38:17,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:38:17,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 07:38:17,132 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-25 07:38:17,132 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-25 07:38:17,133 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-25 07:38:17,134 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 07:38:17,135 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 07:38:17,135 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-25 07:38:17,135 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 07:38:17,135 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 07:38:17,135 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 07:38:17,136 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 07:38:17,136 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 07:38:17,136 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 07:38:17,137 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 07:38:17,137 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 07:38:17,137 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 07:38:17,137 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 07:38:17,138 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 07:38:17,138 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 07:38:17,139 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 07:38:17,139 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 07:38:17,139 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 07:38:17,140 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 07:38:17,141 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 07:38:17,141 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 07:38:17,141 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 07:38:17,142 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:38:17,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 07:38:17,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 07:38:17,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 07:38:17,143 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 07:38:17,143 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 07:38:17,143 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 07:38:17,143 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 07:38:17,143 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 07:38:17,143 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 07:38:17,143 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 07:38:17,145 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:38:17,145 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:38:17,145 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 07:38:17,145 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 07:38:17,145 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 07:38:17,145 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 07:38:17,147 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-25 07:38:17,147 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-25 07:38:17,148 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-25 07:38:17,148 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 07:38:17,148 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 07:38:17,148 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 07:38:17,148 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 07:38:17,149 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 07:38:17,149 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 07:38:17,149 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 07:38:17,149 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 07:38:17,149 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 07:38:17,150 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 07:38:17,150 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-25 07:38:17,150 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 07:38:17,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 07:38:17,150 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 07:38:17,150 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 07:38:17,151 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 07:38:17,151 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 07:38:17,151 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 07:38:17,151 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 07:38:17,151 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 07:38:17,152 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 07:38:17,152 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 07:38:17,152 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 07:38:17,154 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:38:17,154 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 07:38:17,154 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 07:38:17,155 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 07:38:17,155 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 07:38:17,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 07:38:17,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 07:38:17,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 07:38:17,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 07:38:17,155 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 07:38:17,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:38:17,156 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 07:38:17,156 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 07:38:17,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 07:38:17,156 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 07:38:17,156 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 07:38:17,156 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 07:38:17,157 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 07:38:17,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:38:17,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 07:38:17,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:38:18,293 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:38:18,294 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 07:38:18,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:38:18 BoogieIcfgContainer [2020-09-25 07:38:18,305 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:38:18,307 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:38:18,308 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:38:18,312 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:38:18,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:38:16" (1/3) ... [2020-09-25 07:38:18,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d2371b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:38:18, skipping insertion in model container [2020-09-25 07:38:18,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:38:16" (2/3) ... [2020-09-25 07:38:18,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d2371b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:38:18, skipping insertion in model container [2020-09-25 07:38:18,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:38:18" (3/3) ... [2020-09-25 07:38:18,317 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product12.cil.c [2020-09-25 07:38:18,328 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:38:18,342 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:38:18,365 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:38:18,408 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:38:18,408 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:38:18,408 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:38:18,408 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:38:18,408 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:38:18,409 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:38:18,409 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:38:18,409 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:38:18,436 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states. [2020-09-25 07:38:18,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 07:38:18,454 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:38:18,456 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 07:38:18,457 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:38:18,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:38:18,465 INFO L82 PathProgramCache]: Analyzing trace with hash 1599940567, now seen corresponding path program 1 times [2020-09-25 07:38:18,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:38:18,477 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [664606288] [2020-09-25 07:38:18,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:38:18,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:18,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:19,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:20,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:20,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:23,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:23,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:23,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-25 07:38:23,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:38:23,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 07:38:23,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:23,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:23,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:23,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 07:38:23,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:23,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 07:38:24,281 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:38:24,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:38:24,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:24,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:24,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:24,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:38:24,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:24,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-25 07:38:24,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:24,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:24,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:24,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:24,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:24,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:24,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:38:24,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:24,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:24,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:24,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:38:24,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:24,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:38:24,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:24,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:24,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:24,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:24,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:24,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:24,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:38:24,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:24,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:24,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:24,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:38:24,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:24,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:38:24,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:24,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:24,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:24,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:24,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:24,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:24,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:38:24,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:24,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:24,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:24,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:38:24,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:24,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:38:24,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:24,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:24,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:24,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:24,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:24,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:24,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:38:24,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:24,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:24,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:24,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:38:24,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:24,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:38:24,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:24,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:24,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:24,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:24,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:24,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:24,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:38:24,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:24,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:24,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:24,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:38:24,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:24,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:38:24,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:24,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:24,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:24,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:24,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:24,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:24,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 07:38:24,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:24,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:24,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:24,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:38:24,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:24,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:38:24,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:24,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:24,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:24,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 07:38:24,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:24,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:24,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:38:24,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:24,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:24,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:24,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:38:24,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:24,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:38:24,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:24,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:24,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:24,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:24,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:24,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:24,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 07:38:24,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:24,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:24,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:24,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:38:24,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:24,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:38:24,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:24,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:24,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:24,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:38:24,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:24,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:24,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 07:38:24,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:24,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:24,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:24,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:38:24,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:24,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:38:24,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:24,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:24,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:24,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:38:24,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:24,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:24,575 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 07:38:24,576 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [664606288] [2020-09-25 07:38:24,578 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:38:24,578 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:38:24,579 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039813449] [2020-09-25 07:38:24,586 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:38:24,587 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:38:24,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:38:24,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:38:24,608 INFO L87 Difference]: Start difference. First operand 267 states. Second operand 4 states. [2020-09-25 07:38:25,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:38:25,823 INFO L93 Difference]: Finished difference Result 392 states and 465 transitions. [2020-09-25 07:38:25,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 07:38:25,825 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-25 07:38:25,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:38:25,845 INFO L225 Difference]: With dead ends: 392 [2020-09-25 07:38:25,845 INFO L226 Difference]: Without dead ends: 261 [2020-09-25 07:38:25,850 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:38:25,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2020-09-25 07:38:25,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 216. [2020-09-25 07:38:25,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2020-09-25 07:38:25,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 232 transitions. [2020-09-25 07:38:25,951 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 232 transitions. Word has length 160 [2020-09-25 07:38:25,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:38:25,952 INFO L479 AbstractCegarLoop]: Abstraction has 216 states and 232 transitions. [2020-09-25 07:38:25,952 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:38:25,953 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 232 transitions. [2020-09-25 07:38:25,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 07:38:25,958 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:38:25,958 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 07:38:25,958 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:38:25,959 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:38:25,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:38:25,959 INFO L82 PathProgramCache]: Analyzing trace with hash 1673609815, now seen corresponding path program 1 times [2020-09-25 07:38:25,959 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:38:25,960 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [991012362] [2020-09-25 07:38:25,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:38:26,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:26,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:26,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:27,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:27,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:29,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:31,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:31,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-25 07:38:31,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:38:31,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-09-25 07:38:31,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:31,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:31,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:38:31,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 07:38:31,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:38:31,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:31,385 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:38:31,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:38:31,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:31,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:31,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:31,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:38:31,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:31,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-25 07:38:31,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:31,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:31,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:31,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:31,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:31,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:31,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:38:31,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:31,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:31,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:31,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:38:31,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:31,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:38:31,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:31,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:31,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:31,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:31,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:31,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:31,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:38:31,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:31,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:31,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:31,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:38:31,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:31,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:38:31,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:31,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:31,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:31,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:31,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:31,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:31,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:38:31,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:31,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:31,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:31,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:38:31,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:31,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:38:31,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:31,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:31,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:31,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:31,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:31,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:31,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:38:31,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:31,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:31,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:31,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:38:31,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:31,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:38:31,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:31,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:31,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:31,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:31,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:31,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:31,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:38:31,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:31,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:31,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:31,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:38:31,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:31,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:38:31,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:31,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:31,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:31,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:31,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:31,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:31,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 07:38:31,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:31,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:31,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:31,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:38:31,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:31,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:38:31,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:31,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:31,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:31,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 07:38:31,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:31,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:31,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:38:31,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:31,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:31,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:31,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:38:31,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:31,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:38:31,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:31,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:31,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:31,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:31,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:31,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:31,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 07:38:31,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:31,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:31,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:31,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:38:31,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:31,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:38:31,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:31,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:31,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:31,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:38:31,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:31,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:31,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 07:38:31,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:31,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:31,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:31,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:38:31,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:31,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:38:31,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:31,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:31,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:31,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:38:31,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:31,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:31,667 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 07:38:31,667 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [991012362] [2020-09-25 07:38:31,668 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:38:31,668 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:38:31,668 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892610627] [2020-09-25 07:38:31,671 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:38:31,672 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:38:31,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:38:31,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:38:31,672 INFO L87 Difference]: Start difference. First operand 216 states and 232 transitions. Second operand 5 states. [2020-09-25 07:38:32,400 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:38:33,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:38:33,130 INFO L93 Difference]: Finished difference Result 308 states and 347 transitions. [2020-09-25 07:38:33,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:38:33,132 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-25 07:38:33,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:38:33,139 INFO L225 Difference]: With dead ends: 308 [2020-09-25 07:38:33,139 INFO L226 Difference]: Without dead ends: 250 [2020-09-25 07:38:33,141 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:38:33,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2020-09-25 07:38:33,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 206. [2020-09-25 07:38:33,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-09-25 07:38:33,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 219 transitions. [2020-09-25 07:38:33,188 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 219 transitions. Word has length 161 [2020-09-25 07:38:33,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:38:33,189 INFO L479 AbstractCegarLoop]: Abstraction has 206 states and 219 transitions. [2020-09-25 07:38:33,189 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:38:33,190 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 219 transitions. [2020-09-25 07:38:33,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-09-25 07:38:33,193 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:38:33,193 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] [2020-09-25 07:38:33,193 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:38:33,193 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:38:33,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:38:33,194 INFO L82 PathProgramCache]: Analyzing trace with hash -964105756, now seen corresponding path program 1 times [2020-09-25 07:38:33,194 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:38:33,195 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [818593530] [2020-09-25 07:38:33,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:38:33,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:33,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:33,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:33,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:35,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:38,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:38,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-09-25 07:38:38,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:38:38,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 07:38:38,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:38,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:38,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:38:38,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 07:38:38,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 07:38:38,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:38:38,537 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:38:38,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:38:38,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:38,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:38,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:38,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:38:38,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:38,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-25 07:38:38,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:38,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:38,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:38,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:38,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:38,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:38,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:38:38,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:38,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:38,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:38,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:38:38,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:38,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:38:38,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:38,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:38,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:38,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:38,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:38,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:38,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:38:38,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:38,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:38,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:38,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:38:38,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:38,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:38:38,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:38,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:38,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:38,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:38,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:38,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:38,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:38:38,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:38,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:38,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:38,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:38:38,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:38,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:38:38,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:38,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:38,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:38,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:38,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:38,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:38,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:38:38,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:38,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:38,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:38,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:38:38,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:38,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:38:38,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:38,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:38,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:38,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:38,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:38,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:38,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:38:38,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:38,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:38,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:38,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:38:38,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:38,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:38:38,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:38,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:38,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:38,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:38,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:38,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:38,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 07:38:38,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:38,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:38,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:38,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:38:38,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:38,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:38:38,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:38,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:38,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:38:38,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:38,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 07:38:38,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:38:38,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 07:38:38,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:38,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:38,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:38,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:38:38,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:38,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:38:38,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:38,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:38,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:38:38,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:38,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 07:38:38,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:38,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:38:38,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:38,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:38,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:38,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:38:38,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:38,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:38:38,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:38,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:38,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:38,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:38,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:38,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:38,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-25 07:38:38,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:38,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:38,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:38,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:38:38,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:38,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:38:38,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:38,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:38,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:38,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:38:38,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:38,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:38:38,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-09-25 07:38:38,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:38,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:38,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:38,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:38:38,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:38,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:38:38,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:38,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:38,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:38,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:38:38,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:38,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:38,814 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 07:38:38,814 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [818593530] [2020-09-25 07:38:38,814 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:38:38,815 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 07:38:38,815 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471800670] [2020-09-25 07:38:38,816 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 07:38:38,816 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:38:38,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 07:38:38,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:38:38,817 INFO L87 Difference]: Start difference. First operand 206 states and 219 transitions. Second operand 6 states. [2020-09-25 07:38:39,354 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:38:40,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:38:40,812 INFO L93 Difference]: Finished difference Result 458 states and 533 transitions. [2020-09-25 07:38:40,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 07:38:40,813 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 174 [2020-09-25 07:38:40,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:38:40,819 INFO L225 Difference]: With dead ends: 458 [2020-09-25 07:38:40,820 INFO L226 Difference]: Without dead ends: 367 [2020-09-25 07:38:40,821 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 07:38:40,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2020-09-25 07:38:40,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 281. [2020-09-25 07:38:40,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-09-25 07:38:40,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 306 transitions. [2020-09-25 07:38:40,910 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 306 transitions. Word has length 174 [2020-09-25 07:38:40,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:38:40,913 INFO L479 AbstractCegarLoop]: Abstraction has 281 states and 306 transitions. [2020-09-25 07:38:40,913 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 07:38:40,913 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 306 transitions. [2020-09-25 07:38:40,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 07:38:40,917 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:38:40,917 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] [2020-09-25 07:38:40,917 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:38:40,918 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:38:40,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:38:40,918 INFO L82 PathProgramCache]: Analyzing trace with hash -711159163, now seen corresponding path program 1 times [2020-09-25 07:38:40,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:38:40,919 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1262991512] [2020-09-25 07:38:40,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:38:40,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:41,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:41,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:42,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:45,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:45,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-09-25 07:38:45,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:38:45,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4517 [2020-09-25 07:38:45,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:45,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:45,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 07:38:45,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 166 [2020-09-25 07:38:45,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 07:38:45,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:38:45,892 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:38:45,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:38:45,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:45,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:46,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:46,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:38:46,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:46,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-09-25 07:38:46,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:46,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:46,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:46,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:46,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:46,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:46,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:38:46,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:46,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:46,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:46,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:38:46,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:46,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:38:46,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:46,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:46,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:46,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:46,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:46,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:46,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:38:46,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:46,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:46,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:46,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:38:46,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:46,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:38:46,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:46,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:46,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:46,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:46,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:46,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:38:46,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:38:46,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:46,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:46,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:46,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:38:46,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:46,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:38:46,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:46,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:46,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:46,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:46,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:46,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:46,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:38:46,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:46,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:46,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:46,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:38:46,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:46,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:38:46,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:46,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:46,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:46,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:46,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:46,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:46,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:38:46,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:46,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:46,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:46,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:38:46,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:46,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:38:46,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:46,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:46,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:46,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:46,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:46,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:38:46,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 07:38:46,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:46,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:46,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:46,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:38:46,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:46,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:38:46,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:46,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:46,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:46,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:46,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:46,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:46,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 07:38:46,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:46,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:46,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:46,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:38:46,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:46,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:38:46,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:46,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:46,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:38:46,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:46,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 07:38:46,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:46,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:38:46,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:46,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:46,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:46,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:38:46,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:46,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:38:46,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:46,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:46,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:38:46,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:46,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 07:38:46,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:46,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 07:38:46,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:46,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:46,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:46,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:38:46,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:46,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:38:46,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:46,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:46,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:38:46,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:46,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:38:46,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:46,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 07:38:46,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:46,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:46,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:46,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:38:46,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:46,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:38:46,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:46,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:46,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:38:46,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:46,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:38:46,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:46,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-25 07:38:46,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:46,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:46,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:46,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:38:46,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:46,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:38:46,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:46,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:46,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:38:46,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:46,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:38:46,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:46,479 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 07:38:46,480 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1262991512] [2020-09-25 07:38:46,480 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:38:46,480 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-25 07:38:46,481 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163812439] [2020-09-25 07:38:46,482 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 07:38:46,482 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:38:46,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 07:38:46,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-09-25 07:38:46,484 INFO L87 Difference]: Start difference. First operand 281 states and 306 transitions. Second operand 12 states. [2020-09-25 07:38:48,055 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:38:48,388 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:38:48,702 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:38:49,155 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:38:49,465 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:38:50,133 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:38:50,468 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:38:50,896 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:38:51,208 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 07:38:51,561 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 07:38:51,965 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 07:38:52,324 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 07:38:52,661 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 07:38:52,997 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 07:38:53,372 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-25 07:38:54,648 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:38:54,975 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:38:55,305 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 07:38:55,635 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:38:56,064 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:38:56,515 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 07:38:57,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:38:57,032 INFO L93 Difference]: Finished difference Result 789 states and 947 transitions. [2020-09-25 07:38:57,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-09-25 07:38:57,033 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 177 [2020-09-25 07:38:57,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:38:57,034 INFO L225 Difference]: With dead ends: 789 [2020-09-25 07:38:57,034 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 07:38:57,039 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=426, Invalid=1466, Unknown=0, NotChecked=0, Total=1892 [2020-09-25 07:38:57,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 07:38:57,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 07:38:57,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 07:38:57,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 07:38:57,040 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 177 [2020-09-25 07:38:57,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:38:57,041 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 07:38:57,041 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 07:38:57,041 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 07:38:57,041 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 07:38:57,041 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:38:57,044 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 07:38:57,230 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:38:57,547 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 196 [2020-09-25 07:38:57,715 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:38:58,016 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 187 [2020-09-25 07:38:58,315 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 192 [2020-09-25 07:38:58,609 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 192 [2020-09-25 07:38:58,903 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 192 [2020-09-25 07:38:59,183 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 187 [2020-09-25 07:38:59,471 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 192 [2020-09-25 07:38:59,622 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:38:59,775 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:38:59,937 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 07:39:00,095 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 07:39:00,248 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:39:00,401 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:39:00,558 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 07:39:00,707 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:39:00,861 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:39:01,008 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:39:01,161 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:39:01,276 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 14 [2020-09-25 07:39:01,425 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:39:01,703 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 187 [2020-09-25 07:39:01,998 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 189 [2020-09-25 07:39:02,285 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 192 [2020-09-25 07:39:02,569 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 189 [2020-09-25 07:39:02,862 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 192 [2020-09-25 07:39:03,143 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 187 [2020-09-25 07:39:03,288 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:39:03,454 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:39:03,604 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:39:03,771 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 07:39:03,925 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:39:04,085 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 07:39:04,233 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:39:04,390 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 07:39:04,538 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:39:04,686 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:39:04,834 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:39:04,978 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:39:05,126 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:39:05,280 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:39:05,433 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:39:05,586 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:39:05,733 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:39:05,884 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:39:06,041 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 07:39:06,195 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:39:06,343 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:39:06,496 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:39:06,647 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:39:06,804 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:39:06,956 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:39:07,110 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190