/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=1.0 --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_spec1_product40.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 08:35:27,158 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:35:27,162 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:35:27,188 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:35:27,188 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:35:27,189 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:35:27,191 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:35:27,193 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:35:27,195 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:35:27,196 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:35:27,197 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:35:27,198 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:35:27,198 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:35:27,200 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:35:27,201 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:35:27,202 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:35:27,203 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:35:27,204 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:35:27,208 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:35:27,211 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:35:27,214 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:35:27,217 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:35:27,219 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:35:27,221 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:35:27,224 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:35:27,224 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:35:27,225 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:35:27,228 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:35:27,229 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:35:27,232 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:35:27,232 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:35:27,234 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:35:27,235 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:35:27,237 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:35:27,238 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:35:27,238 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:35:27,239 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:35:27,239 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:35:27,239 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:35:27,241 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:35:27,243 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:35:27,243 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 08:35:27,306 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:35:27,307 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:35:27,308 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:35:27,308 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:35:27,309 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:35:27,309 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:35:27,309 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:35:27,309 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:35:27,309 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:35:27,310 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:35:27,310 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:35:27,310 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:35:27,310 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:35:27,310 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:35:27,311 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:35:27,311 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:35:27,311 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:35:27,311 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:35:27,312 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:35:27,312 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:35:27,312 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:35:27,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:35:27,312 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:35:27,313 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:35:27,313 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:35:27,313 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:35:27,313 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:35:27,313 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:35:27,314 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:35:27,314 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=1.0;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=1.0;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=1.0;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=1.0;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=1.0;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=1.0;log-additional-information=true; [2020-09-25 08:35:27,769 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:35:27,792 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:35:27,797 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:35:27,798 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:35:27,799 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:35:27,800 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product40.cil.c [2020-09-25 08:35:27,863 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6c8beabf8/f1ce783ba4564a118a0d123a30bb577e/FLAGfd750b2d4 [2020-09-25 08:35:28,498 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:35:28,499 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product40.cil.c [2020-09-25 08:35:28,517 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6c8beabf8/f1ce783ba4564a118a0d123a30bb577e/FLAGfd750b2d4 [2020-09-25 08:35:28,785 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6c8beabf8/f1ce783ba4564a118a0d123a30bb577e [2020-09-25 08:35:28,798 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:35:28,805 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:35:28,806 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:35:28,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:35:28,810 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:35:28,812 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:35:28" (1/1) ... [2020-09-25 08:35:28,816 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16ab8c9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:35:28, skipping insertion in model container [2020-09-25 08:35:28,816 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:35:28" (1/1) ... [2020-09-25 08:35:28,826 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:35:28,877 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:35:29,375 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:35:29,401 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:35:29,538 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:35:29,578 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:35:29,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:35:29 WrapperNode [2020-09-25 08:35:29,578 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:35:29,579 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:35:29,580 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:35:29,580 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:35:29,598 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:35:29" (1/1) ... [2020-09-25 08:35:29,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:35:29" (1/1) ... [2020-09-25 08:35:29,624 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:35:29" (1/1) ... [2020-09-25 08:35:29,625 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:35:29" (1/1) ... [2020-09-25 08:35:29,658 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:35:29" (1/1) ... [2020-09-25 08:35:29,670 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:35:29" (1/1) ... [2020-09-25 08:35:29,675 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:35:29" (1/1) ... [2020-09-25 08:35:29,683 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:35:29,684 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:35:29,684 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:35:29,685 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:35:29,686 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:35:29" (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 08:35:29,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:35:29,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:35:29,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 08:35:29,786 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 08:35:29,787 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 08:35:29,787 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 08:35:29,787 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 08:35:29,788 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 08:35:29,788 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 08:35:29,789 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 08:35:29,789 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 08:35:29,789 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 08:35:29,789 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 08:35:29,789 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 08:35:29,789 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 08:35:29,790 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 08:35:29,791 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 08:35:29,791 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 08:35:29,791 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 08:35:29,791 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 08:35:29,792 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 08:35:29,792 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:35:29,792 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 08:35:29,792 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 08:35:29,792 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 08:35:29,793 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 08:35:29,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 08:35:29,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 08:35:29,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 08:35:29,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 08:35:29,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 08:35:29,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 08:35:29,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 08:35:29,795 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 08:35:29,795 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 08:35:29,795 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 08:35:29,795 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 08:35:29,795 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 08:35:29,796 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 08:35:29,798 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 08:35:29,798 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:35:29,798 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:35:29,798 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 08:35:29,799 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 08:35:29,799 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 08:35:29,800 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 08:35:29,800 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 08:35:29,800 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 08:35:29,801 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 08:35:29,801 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 08:35:29,801 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 08:35:29,801 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 08:35:29,801 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 08:35:29,802 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 08:35:29,802 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 08:35:29,802 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 08:35:29,802 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 08:35:29,802 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 08:35:29,803 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 08:35:29,803 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 08:35:29,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 08:35:29,803 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 08:35:29,803 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 08:35:29,804 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 08:35:29,804 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 08:35:29,804 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 08:35:29,804 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 08:35:29,804 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 08:35:29,804 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 08:35:29,805 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 08:35:29,805 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 08:35:29,807 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 08:35:29,807 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:35:29,808 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 08:35:29,808 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 08:35:29,808 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 08:35:29,808 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 08:35:29,808 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 08:35:29,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 08:35:29,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 08:35:29,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 08:35:29,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 08:35:29,809 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 08:35:29,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 08:35:29,809 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 08:35:29,809 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 08:35:29,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 08:35:29,810 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 08:35:29,810 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 08:35:29,810 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 08:35:29,810 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 08:35:29,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:35:29,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 08:35:29,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:35:30,987 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:35:30,987 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 08:35:30,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:35:30 BoogieIcfgContainer [2020-09-25 08:35:30,995 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:35:30,996 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:35:30,996 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:35:31,000 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:35:31,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:35:28" (1/3) ... [2020-09-25 08:35:31,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70e8f88f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:35:31, skipping insertion in model container [2020-09-25 08:35:31,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:35:29" (2/3) ... [2020-09-25 08:35:31,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70e8f88f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:35:31, skipping insertion in model container [2020-09-25 08:35:31,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:35:30" (3/3) ... [2020-09-25 08:35:31,005 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product40.cil.c [2020-09-25 08:35:31,016 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:35:31,027 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:35:31,048 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:35:31,082 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:35:31,082 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:35:31,082 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:35:31,083 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:35:31,083 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:35:31,083 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:35:31,083 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:35:31,083 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:35:31,111 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states. [2020-09-25 08:35:31,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 08:35:31,129 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:35:31,130 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:35:31,131 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:35:31,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:35:31,139 INFO L82 PathProgramCache]: Analyzing trace with hash -483838742, now seen corresponding path program 1 times [2020-09-25 08:35:31,151 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:35:31,152 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [877796686] [2020-09-25 08:35:31,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:35:31,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:31,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:31,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:33,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:34,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:35,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:36,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:36,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 08:35:36,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:35:36,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-09-25 08:35:36,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:36,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:36,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:36,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 08:35:36,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:36,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 17 [2020-09-25 08:35:37,033 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:35:37,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:35:37,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:37,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:37,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:37,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:35:37,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:37,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-09-25 08:35:37,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:37,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:37,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:37,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:37,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:37,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:37,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:35:37,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:37,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:37,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:37,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:35:37,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:37,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:35:37,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:37,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:37,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:37,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:37,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:37,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 08:35:37,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:35:37,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:37,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:37,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:37,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:35:37,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:37,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:35:37,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:37,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:37,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:37,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:37,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:37,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:37,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:35:37,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:37,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:37,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:37,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:35:37,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:37,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:35:37,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:37,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:37,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:37,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:37,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:37,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:37,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:35:37,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:37,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:37,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:37,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:35:37,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:37,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:35:37,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:37,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:37,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:37,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:37,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:37,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:37,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 08:35:37,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:37,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:37,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:37,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:35:37,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:37,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:35:37,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:37,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:37,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:37,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:35:37,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:37,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:37,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 08:35:37,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:37,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:37,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:37,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:35:37,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:37,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:35:37,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:37,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:37,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:37,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:35:37,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:37,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:37,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:35:37,543 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [877796686] [2020-09-25 08:35:37,547 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:35:37,547 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 08:35:37,549 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080594726] [2020-09-25 08:35:37,558 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 08:35:37,558 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:35:37,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 08:35:37,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:35:37,591 INFO L87 Difference]: Start difference. First operand 311 states. Second operand 3 states. [2020-09-25 08:35:39,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:35:39,283 INFO L93 Difference]: Finished difference Result 490 states and 587 transitions. [2020-09-25 08:35:39,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 08:35:39,285 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 08:35:39,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:35:39,306 INFO L225 Difference]: With dead ends: 490 [2020-09-25 08:35:39,307 INFO L226 Difference]: Without dead ends: 304 [2020-09-25 08:35:39,314 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:35:39,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-09-25 08:35:39,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 260. [2020-09-25 08:35:39,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 260 states. [2020-09-25 08:35:39,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 284 transitions. [2020-09-25 08:35:39,434 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 284 transitions. Word has length 142 [2020-09-25 08:35:39,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:35:39,437 INFO L479 AbstractCegarLoop]: Abstraction has 260 states and 284 transitions. [2020-09-25 08:35:39,437 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 08:35:39,437 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 284 transitions. [2020-09-25 08:35:39,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 08:35:39,448 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:35:39,449 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:35:39,449 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:35:39,449 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:35:39,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:35:39,451 INFO L82 PathProgramCache]: Analyzing trace with hash -1956801941, now seen corresponding path program 1 times [2020-09-25 08:35:39,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:35:39,452 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [27430419] [2020-09-25 08:35:39,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:35:39,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:39,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:39,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:41,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:41,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:43,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:44,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:44,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 08:35:44,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:35:44,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 08:35:44,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:44,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:44,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:35:44,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 08:35:44,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 08:35:44,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:44,833 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:35:44,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:35:44,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:44,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:44,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:44,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:35:44,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:44,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-25 08:35:44,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:44,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:44,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:44,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:44,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:44,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:44,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:35:44,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:44,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:44,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:44,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:35:44,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:44,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:35:44,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:44,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:44,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:44,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:44,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:44,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:44,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:35:44,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:44,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:44,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:44,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:35:44,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:44,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:35:44,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:44,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:44,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:45,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:45,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:45,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:45,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:35:45,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:45,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:45,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:45,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:35:45,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:45,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:35:45,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:45,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:45,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:45,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:45,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:45,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:45,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:35:45,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:45,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:45,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:45,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:35:45,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:45,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:35:45,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:45,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:45,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:45,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:45,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:45,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:45,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 08:35:45,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:45,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:45,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:45,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:35:45,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:45,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:35:45,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:45,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:45,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:45,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:35:45,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:45,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:45,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 08:35:45,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:45,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:45,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:45,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:35:45,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:45,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:35:45,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:45,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:45,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:45,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:35:45,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:45,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:45,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:35:45,059 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [27430419] [2020-09-25 08:35:45,061 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:35:45,061 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 08:35:45,062 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842452372] [2020-09-25 08:35:45,065 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 08:35:45,065 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:35:45,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 08:35:45,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 08:35:45,066 INFO L87 Difference]: Start difference. First operand 260 states and 284 transitions. Second operand 4 states. [2020-09-25 08:35:45,706 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:35:46,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:35:46,670 INFO L93 Difference]: Finished difference Result 397 states and 450 transitions. [2020-09-25 08:35:46,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 08:35:46,672 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 08:35:46,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:35:46,682 INFO L225 Difference]: With dead ends: 397 [2020-09-25 08:35:46,682 INFO L226 Difference]: Without dead ends: 287 [2020-09-25 08:35:46,684 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:35:46,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-09-25 08:35:46,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 250. [2020-09-25 08:35:46,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2020-09-25 08:35:46,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 271 transitions. [2020-09-25 08:35:46,739 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 271 transitions. Word has length 143 [2020-09-25 08:35:46,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:35:46,740 INFO L479 AbstractCegarLoop]: Abstraction has 250 states and 271 transitions. [2020-09-25 08:35:46,740 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 08:35:46,740 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 271 transitions. [2020-09-25 08:35:46,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 08:35:46,743 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:35:46,743 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:35:46,743 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:35:46,744 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:35:46,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:35:46,744 INFO L82 PathProgramCache]: Analyzing trace with hash 156166343, now seen corresponding path program 1 times [2020-09-25 08:35:46,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:35:46,745 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1939653130] [2020-09-25 08:35:46,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:35:46,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:46,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:47,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:47,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:48,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:51,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:51,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 08:35:51,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:35:51,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 08:35:51,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:51,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:51,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:35:51,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 08:35:51,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:35:51,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:52,065 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:35:52,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:35:52,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:52,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:52,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:52,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:35:52,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:52,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 08:35:52,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:52,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:52,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:52,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:52,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:52,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:52,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:35:52,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:52,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:52,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:52,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:35:52,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:52,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:35:52,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:52,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:52,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:52,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:52,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:52,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:52,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:35:52,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:52,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:52,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:52,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:35:52,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:52,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:35:52,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:52,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:52,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:52,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:52,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:52,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:52,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:35:52,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:52,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:52,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:52,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:35:52,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:52,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:35:52,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:52,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:52,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:52,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:52,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:52,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:52,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:35:52,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:52,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:52,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:52,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:35:52,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:52,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:35:52,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:52,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:52,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:52,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:52,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:52,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:52,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 08:35:52,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:52,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:52,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:52,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:35:52,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:52,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:35:52,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:52,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:52,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:35:52,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:52,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 08:35:52,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:52,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 08:35:52,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:52,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:52,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:52,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:35:52,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:52,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:35:52,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:52,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:52,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:52,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:35:52,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:52,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:52,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 08:35:52,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:52,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:52,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:52,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:35:52,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:52,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:35:52,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:52,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:52,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:52,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:35:52,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:52,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:52,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:35:52,295 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1939653130] [2020-09-25 08:35:52,295 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:35:52,295 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 08:35:52,296 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100729936] [2020-09-25 08:35:52,296 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 08:35:52,297 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:35:52,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 08:35:52,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:35:52,297 INFO L87 Difference]: Start difference. First operand 250 states and 271 transitions. Second operand 5 states. [2020-09-25 08:35:52,810 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 08:35:54,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:35:54,783 INFO L93 Difference]: Finished difference Result 600 states and 700 transitions. [2020-09-25 08:35:54,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 08:35:54,784 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-25 08:35:54,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:35:54,789 INFO L225 Difference]: With dead ends: 600 [2020-09-25 08:35:54,789 INFO L226 Difference]: Without dead ends: 460 [2020-09-25 08:35:54,791 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:35:54,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2020-09-25 08:35:54,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 380. [2020-09-25 08:35:54,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2020-09-25 08:35:54,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 423 transitions. [2020-09-25 08:35:54,900 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 423 transitions. Word has length 156 [2020-09-25 08:35:54,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:35:54,901 INFO L479 AbstractCegarLoop]: Abstraction has 380 states and 423 transitions. [2020-09-25 08:35:54,901 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 08:35:54,901 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 423 transitions. [2020-09-25 08:35:54,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 08:35:54,904 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:35:54,904 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:35:54,904 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 08:35:54,904 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:35:54,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:35:54,905 INFO L82 PathProgramCache]: Analyzing trace with hash 1551168922, now seen corresponding path program 1 times [2020-09-25 08:35:54,905 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:35:54,905 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [871542553] [2020-09-25 08:35:54,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:35:54,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:55,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:55,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:55,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:56,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:59,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:59,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-25 08:35:59,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:35:59,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 08:35:59,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:59,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:59,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 08:35:59,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 08:35:59,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-09-25 08:35:59,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:36:00,329 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:36:00,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:36:00,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:00,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:00,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:00,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:36:00,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:00,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 252 [2020-09-25 08:36:00,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:00,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:00,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:36:00,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:00,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 08:36:00,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:00,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:36:00,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:00,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:00,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:00,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:36:00,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:00,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:36:00,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:00,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:00,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:36:00,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:00,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:36:00,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:00,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:36:00,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:00,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:00,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:00,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:36:00,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:00,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:36:00,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:00,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:00,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:36:00,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:00,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:36:00,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:00,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:36:00,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:00,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:00,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:00,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:36:00,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:00,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:36:00,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:00,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:00,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:36:00,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:00,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:36:00,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:00,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:36:00,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:00,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:00,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:00,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:36:00,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:00,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:36:00,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:00,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:00,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:36:00,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:00,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:36:00,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:00,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 08:36:00,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:00,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:00,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:00,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:36:00,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:00,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:36:00,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:00,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:00,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:36:00,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:00,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:36:00,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:00,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 08:36:00,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:00,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:00,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:00,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:36:00,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:00,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 08:36:00,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:00,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:00,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:36:00,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:00,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:36:00,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:00,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 08:36:00,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:00,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:00,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:00,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:36:00,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:00,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:36:00,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:00,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:00,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:36:00,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:36:00,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:36:00,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:36:00,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:36:00,888 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [871542553] [2020-09-25 08:36:00,888 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:36:00,889 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 08:36:00,889 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830632016] [2020-09-25 08:36:00,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 08:36:00,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:36:00,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 08:36:00,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 08:36:00,891 INFO L87 Difference]: Start difference. First operand 380 states and 423 transitions. Second operand 9 states. [2020-09-25 08:36:01,641 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 08:36:02,950 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:36:03,298 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:36:03,723 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 08:36:04,098 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:36:04,400 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:36:04,782 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:36:05,085 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:36:05,670 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:36:06,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:36:06,803 INFO L93 Difference]: Finished difference Result 1032 states and 1239 transitions. [2020-09-25 08:36:06,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 08:36:06,803 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-09-25 08:36:06,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:36:06,811 INFO L225 Difference]: With dead ends: 1032 [2020-09-25 08:36:06,811 INFO L226 Difference]: Without dead ends: 762 [2020-09-25 08:36:06,813 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 08:36:06,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2020-09-25 08:36:06,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 623. [2020-09-25 08:36:06,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 623 states. [2020-09-25 08:36:06,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623 states to 623 states and 706 transitions. [2020-09-25 08:36:06,929 INFO L78 Accepts]: Start accepts. Automaton has 623 states and 706 transitions. Word has length 161 [2020-09-25 08:36:06,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:36:06,933 INFO L479 AbstractCegarLoop]: Abstraction has 623 states and 706 transitions. [2020-09-25 08:36:06,933 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 08:36:06,933 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 706 transitions. [2020-09-25 08:36:06,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-25 08:36:06,937 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:36:06,937 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:36:06,937 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 08:36:06,938 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:36:06,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:36:06,938 INFO L82 PathProgramCache]: Analyzing trace with hash -1225724098, now seen corresponding path program 1 times [2020-09-25 08:36:06,938 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:36:06,939 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [940505653] [2020-09-25 08:36:06,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:36:06,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:07,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:07,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:07,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:09,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:09,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-25 08:36:09,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:36:09,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2909 [2020-09-25 08:36:09,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:09,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:09,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:36:09,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-25 08:36:09,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 08:36:09,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:36:10,349 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:36:10,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:36:10,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:10,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:10,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:10,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:36:10,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:10,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 08:36:10,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:10,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:10,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:36:10,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:10,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:36:10,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:10,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:36:10,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:10,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:10,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:10,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:36:10,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:10,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:36:10,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:10,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:10,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:36:10,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:10,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:36:10,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:10,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:36:10,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:10,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:10,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:10,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:36:10,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:10,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:36:10,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:10,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:10,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:36:10,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:10,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:36:10,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:10,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:36:10,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:10,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:10,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:10,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:36:10,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:10,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:36:10,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:10,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:10,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:36:10,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:10,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:36:10,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:10,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:36:10,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:10,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:10,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:10,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:36:10,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:10,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:36:10,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:10,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:10,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:36:10,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:10,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:36:10,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:10,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 08:36:10,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:10,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:10,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:10,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:36:10,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:10,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:36:10,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:10,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:10,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:36:10,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:10,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:36:10,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:10,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 08:36:10,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:10,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:10,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:10,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:36:10,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:10,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:36:10,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:10,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:10,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:36:10,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:10,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 08:36:10,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:10,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 08:36:10,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:10,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:10,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:10,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:36:10,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:10,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:36:10,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:10,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:10,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:36:10,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:10,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:36:10,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:10,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 08:36:10,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:10,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:10,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:10,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:36:10,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:10,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 08:36:10,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:10,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:10,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:36:10,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:10,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:36:10,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:10,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:36:10,640 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [940505653] [2020-09-25 08:36:10,640 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:36:10,640 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 08:36:10,641 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176905573] [2020-09-25 08:36:10,641 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 08:36:10,641 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:36:10,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 08:36:10,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 08:36:10,642 INFO L87 Difference]: Start difference. First operand 623 states and 706 transitions. Second operand 10 states. [2020-09-25 08:36:11,380 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:36:12,917 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:36:13,247 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:36:13,623 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:36:14,004 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 08:36:14,338 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 190