/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=WIDEST --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_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 02:53:07,526 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:53:07,530 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:53:07,574 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:53:07,575 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:53:07,583 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:53:07,586 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:53:07,590 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:53:07,593 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:53:07,596 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:53:07,597 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:53:07,598 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:53:07,599 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:53:07,601 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:53:07,604 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:53:07,606 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:53:07,607 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:53:07,609 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:53:07,610 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:53:07,619 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:53:07,621 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:53:07,622 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:53:07,623 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:53:07,624 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:53:07,642 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:53:07,642 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:53:07,643 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:53:07,644 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:53:07,644 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:53:07,645 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 02:53:07,645 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 02:53:07,646 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 02:53:07,651 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 02:53:07,652 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 02:53:07,653 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 02:53:07,654 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 02:53:07,655 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 02:53:07,655 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 02:53:07,655 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:53:07,656 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:53:07,657 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:53:07,659 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 02:53:07,703 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:53:07,703 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:53:07,706 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:53:07,706 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:53:07,706 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:53:07,706 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:53:07,707 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 02:53:07,707 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:53:07,707 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 02:53:07,707 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:53:07,708 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:53:07,709 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:53:07,709 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:53:07,709 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 02:53:07,709 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:53:07,710 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:53:07,710 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:53:07,710 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:53:07,710 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:53:07,710 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:53:07,711 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:53:07,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:53:07,711 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:53:07,711 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:53:07,711 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:53:07,712 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:53:07,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:53:07,712 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:53:07,712 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:53:07,712 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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;log-additional-information=true; [2020-09-25 02:53:08,163 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:53:08,187 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:53:08,191 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:53:08,194 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:53:08,194 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:53:08,195 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product33.cil.c [2020-09-25 02:53:08,284 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1a374bb2c/ff37ba9cd35b4c20a366bbf4b3d9891d/FLAG02bf9d80a [2020-09-25 02:53:08,891 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:53:08,892 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product33.cil.c [2020-09-25 02:53:08,904 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1a374bb2c/ff37ba9cd35b4c20a366bbf4b3d9891d/FLAG02bf9d80a [2020-09-25 02:53:09,178 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1a374bb2c/ff37ba9cd35b4c20a366bbf4b3d9891d [2020-09-25 02:53:09,189 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:53:09,196 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:53:09,197 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:53:09,197 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:53:09,202 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:53:09,204 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:53:09" (1/1) ... [2020-09-25 02:53:09,211 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4207e6a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:09, skipping insertion in model container [2020-09-25 02:53:09,211 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:53:09" (1/1) ... [2020-09-25 02:53:09,220 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:53:09,294 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:53:09,714 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:53:09,729 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:53:09,825 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:53:09,864 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:53:09,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:09 WrapperNode [2020-09-25 02:53:09,865 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:53:09,866 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:53:09,866 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:53:09,866 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:53:09,880 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:09" (1/1) ... [2020-09-25 02:53:09,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:09" (1/1) ... [2020-09-25 02:53:09,901 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:09" (1/1) ... [2020-09-25 02:53:09,901 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:09" (1/1) ... [2020-09-25 02:53:09,933 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:09" (1/1) ... [2020-09-25 02:53:09,944 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:09" (1/1) ... [2020-09-25 02:53:09,949 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:09" (1/1) ... [2020-09-25 02:53:09,957 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:53:09,958 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:53:09,958 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:53:09,958 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:53:09,959 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:09" (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 02:53:10,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:53:10,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:53:10,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 02:53:10,058 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 02:53:10,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 02:53:10,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 02:53:10,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 02:53:10,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 02:53:10,060 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 02:53:10,060 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 02:53:10,060 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 02:53:10,061 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 02:53:10,061 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 02:53:10,061 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 02:53:10,061 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 02:53:10,062 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 02:53:10,062 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 02:53:10,063 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 02:53:10,063 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 02:53:10,063 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 02:53:10,063 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 02:53:10,063 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 02:53:10,064 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 02:53:10,064 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 02:53:10,064 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 02:53:10,065 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 02:53:10,065 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 02:53:10,065 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 02:53:10,066 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:53:10,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 02:53:10,066 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 02:53:10,066 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 02:53:10,066 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 02:53:10,066 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 02:53:10,066 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 02:53:10,067 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 02:53:10,067 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 02:53:10,067 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:53:10,067 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 02:53:10,067 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 02:53:10,067 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 02:53:10,068 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 02:53:10,068 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 02:53:10,068 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 02:53:10,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 02:53:10,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 02:53:10,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 02:53:10,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 02:53:10,069 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 02:53:10,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 02:53:10,069 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 02:53:10,069 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 02:53:10,070 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 02:53:10,070 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 02:53:10,070 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 02:53:10,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 02:53:10,071 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 02:53:10,071 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 02:53:10,071 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 02:53:10,071 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 02:53:10,071 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 02:53:10,071 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 02:53:10,072 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 02:53:10,072 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 02:53:10,072 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 02:53:10,072 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 02:53:10,072 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 02:53:10,072 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 02:53:10,073 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 02:53:10,073 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 02:53:10,073 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 02:53:10,074 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 02:53:10,075 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 02:53:10,075 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 02:53:10,076 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 02:53:10,076 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 02:53:10,076 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 02:53:10,076 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 02:53:10,076 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 02:53:10,076 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 02:53:10,076 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 02:53:10,077 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 02:53:10,078 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 02:53:10,078 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:53:10,078 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 02:53:10,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:53:10,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 02:53:10,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:53:11,203 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:53:11,204 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 02:53:11,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:53:11 BoogieIcfgContainer [2020-09-25 02:53:11,217 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:53:11,218 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:53:11,218 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:53:11,223 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:53:11,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:53:09" (1/3) ... [2020-09-25 02:53:11,224 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a57d1a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:53:11, skipping insertion in model container [2020-09-25 02:53:11,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:09" (2/3) ... [2020-09-25 02:53:11,225 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a57d1a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:53:11, skipping insertion in model container [2020-09-25 02:53:11,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:53:11" (3/3) ... [2020-09-25 02:53:11,228 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product33.cil.c [2020-09-25 02:53:11,241 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:53:11,255 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:53:11,283 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:53:11,311 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:53:11,311 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:53:11,312 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:53:11,312 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:53:11,312 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:53:11,312 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:53:11,312 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:53:11,313 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:53:11,339 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states. [2020-09-25 02:53:11,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 02:53:11,355 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:53:11,356 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 02:53:11,357 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:53:11,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:53:11,363 INFO L82 PathProgramCache]: Analyzing trace with hash -955195086, now seen corresponding path program 1 times [2020-09-25 02:53:11,373 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:53:11,373 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [975572412] [2020-09-25 02:53:11,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:53:11,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:11,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:12,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:12,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:13,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:13,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:16,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:16,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 02:53:16,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 02:53:16,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5061 [2020-09-25 02:53:16,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:16,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 02:53:16,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 02:53:16,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-09-25 02:53:16,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 02:53:17,313 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:53:17,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:53:17,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:17,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:17,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:17,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:53:17,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:17,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 307 [2020-09-25 02:53:17,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:17,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:17,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:17,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 02:53:17,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:17,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:53:17,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:17,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:17,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:17,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:53:17,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:17,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 02:53:17,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:17,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:17,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:17,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:53:17,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:17,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:53:17,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:17,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:17,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:17,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:53:17,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:17,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:53:17,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:17,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:17,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:17,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:53:17,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:17,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:53:17,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:17,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:17,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:17,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:53:17,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:17,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 02:53:17,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:17,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:17,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:17,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:53:17,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:17,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:53:17,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:17,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:17,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:17,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:53:17,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:17,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:53:17,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:17,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:17,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:17,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:53:17,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:17,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 02:53:17,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:17,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:17,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:17,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:53:17,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:17,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:53:17,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:17,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:17,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:17,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:53:17,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:17,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 02:53:17,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:17,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:17,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:17,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:53:17,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:17,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 02:53:17,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:17,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:53:17,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:17,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:53:17,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:17,991 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 02:53:17,992 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [975572412] [2020-09-25 02:53:17,994 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:53:17,995 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 02:53:17,996 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875744460] [2020-09-25 02:53:18,007 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 02:53:18,007 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:53:18,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 02:53:18,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 02:53:18,030 INFO L87 Difference]: Start difference. First operand 284 states. Second operand 8 states. [2020-09-25 02:53:18,799 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:53:20,030 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:53:20,340 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 02:53:20,627 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:53:20,993 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:53:21,360 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:53:22,010 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:53:22,344 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:53:22,774 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:53:23,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:53:23,830 INFO L93 Difference]: Finished difference Result 524 states and 656 transitions. [2020-09-25 02:53:23,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 02:53:23,833 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 02:53:23,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:53:23,856 INFO L225 Difference]: With dead ends: 524 [2020-09-25 02:53:23,856 INFO L226 Difference]: Without dead ends: 357 [2020-09-25 02:53:23,863 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-25 02:53:23,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2020-09-25 02:53:23,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 315. [2020-09-25 02:53:23,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315 states. [2020-09-25 02:53:24,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 361 transitions. [2020-09-25 02:53:24,002 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 361 transitions. Word has length 142 [2020-09-25 02:53:24,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:53:24,004 INFO L479 AbstractCegarLoop]: Abstraction has 315 states and 361 transitions. [2020-09-25 02:53:24,004 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 02:53:24,004 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 361 transitions. [2020-09-25 02:53:24,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-25 02:53:24,010 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:53:24,011 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:53:24,011 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:53:24,011 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:53:24,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:53:24,012 INFO L82 PathProgramCache]: Analyzing trace with hash 1923951786, now seen corresponding path program 1 times [2020-09-25 02:53:24,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:53:24,012 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [345324741] [2020-09-25 02:53:24,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:53:24,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:24,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:24,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:24,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:24,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:26,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:27,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:29,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:29,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 245 [2020-09-25 02:53:29,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 02:53:29,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 02:53:29,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:29,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 02:53:29,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 02:53:29,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-09-25 02:53:29,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:29,402 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:53:29,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:53:29,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:29,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:29,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:29,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:53:29,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:29,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-09-25 02:53:29,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:29,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:29,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:29,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 02:53:29,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:29,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:53:29,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:29,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:29,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:29,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:53:29,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:29,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:53:29,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:29,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:29,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:29,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:53:29,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:29,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:53:29,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:29,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:29,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:29,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:53:29,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:29,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:53:29,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:29,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:29,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:29,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:53:29,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:29,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:53:29,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:29,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:29,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:29,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:53:29,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:29,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 02:53:29,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:29,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:29,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:29,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:53:29,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:29,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:53:29,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:29,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:29,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:29,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:53:29,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:29,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:53:29,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:29,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:29,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:29,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:53:29,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:29,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-09-25 02:53:29,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:29,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:29,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:29,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:29,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 02:53:29,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:53:29,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 02:53:29,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:29,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:29,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:29,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-25 02:53:29,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:29,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:53:29,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:29,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:29,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:29,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 02:53:29,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:29,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:53:29,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:29,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:53:29,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:29,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:53:29,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:29,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:53:29,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:29,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:29,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:29,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:53:29,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:29,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:53:29,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:29,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:53:29,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:29,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:53:29,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:29,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 02:53:29,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:29,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:29,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:29,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:29,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 02:53:29,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:53:29,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 02:53:29,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:29,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:29,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:29,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 02:53:29,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:29,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:53:29,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:29,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:29,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:29,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:29,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 02:53:29,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:53:29,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 02:53:29,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:29,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:53:29,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 02:53:29,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:53:29,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:30,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 02:53:30,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:30,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:30,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:30,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:53:30,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:30,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:53:30,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:30,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:53:30,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:30,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:53:30,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:30,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 02:53:30,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:30,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:30,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:30,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:53:30,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:30,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:53:30,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:30,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:53:30,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:30,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:53:30,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:30,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-25 02:53:30,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:30,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:30,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:30,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:53:30,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:30,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 02:53:30,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:30,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:53:30,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:30,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:53:30,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:30,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-25 02:53:30,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:30,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:30,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:30,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:53:30,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:30,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:53:30,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:30,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:53:30,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:53:30,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:53:30,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:30,192 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 02:53:30,192 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [345324741] [2020-09-25 02:53:30,192 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:53:30,193 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 02:53:30,193 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502774282] [2020-09-25 02:53:30,196 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 02:53:30,198 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:53:30,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 02:53:30,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-25 02:53:30,198 INFO L87 Difference]: Start difference. First operand 315 states and 361 transitions. Second operand 14 states. [2020-09-25 02:53:30,718 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:53:31,721 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:53:32,100 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:53:32,433 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:53:32,806 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:53:33,147 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:53:33,490 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:53:33,816 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:53:34,175 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:53:34,560 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:53:34,854 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:53:35,248 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:53:35,560 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:53:36,018 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:53:36,370 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:53:36,684 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:53:37,024 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:53:37,420 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:53:37,757 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:53:39,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:53:39,586 INFO L93 Difference]: Finished difference Result 894 states and 1214 transitions. [2020-09-25 02:53:39,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-25 02:53:39,586 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 200 [2020-09-25 02:53:39,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:53:39,604 INFO L225 Difference]: With dead ends: 894 [2020-09-25 02:53:39,604 INFO L226 Difference]: Without dead ends: 643 [2020-09-25 02:53:39,613 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=224, Invalid=966, Unknown=0, NotChecked=0, Total=1190 [2020-09-25 02:53:39,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2020-09-25 02:53:39,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 485. [2020-09-25 02:53:39,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 485 states. [2020-09-25 02:53:39,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 561 transitions. [2020-09-25 02:53:39,755 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 561 transitions. Word has length 200 [2020-09-25 02:53:39,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:53:39,758 INFO L479 AbstractCegarLoop]: Abstraction has 485 states and 561 transitions. [2020-09-25 02:53:39,758 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 02:53:39,758 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 561 transitions. [2020-09-25 02:53:39,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-09-25 02:53:39,768 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:53:39,769 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:53:39,769 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 02:53:39,769 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:53:39,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:53:39,770 INFO L82 PathProgramCache]: Analyzing trace with hash -627718261, now seen corresponding path program 1 times [2020-09-25 02:53:39,770 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:53:39,770 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1209378449] [2020-09-25 02:53:39,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:53:39,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:39,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:39,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:40,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:40,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:41,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:41,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:44,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:44,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 262 [2020-09-25 02:53:44,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 02:53:44,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 02:53:44,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:44,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:44,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 02:53:44,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 02:53:44,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:45,166 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:53:45,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:53:45,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:45,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:45,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:45,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:53:45,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:45,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-09-25 02:53:45,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:45,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:45,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:45,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 02:53:45,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:45,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:53:45,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:45,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:45,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:45,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:53:45,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:45,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:53:45,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:45,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:45,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:45,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:53:45,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:45,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:53:45,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:45,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:45,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:45,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:53:45,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:45,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:53:45,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:45,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:45,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:45,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:53:45,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:45,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:53:45,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:45,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:45,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:45,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:53:45,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:45,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 02:53:45,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:45,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:45,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:45,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:53:45,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:45,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:53:45,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:45,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:45,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:45,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:53:45,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:45,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:53:45,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:45,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:45,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:45,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:53:45,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:45,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 02:53:45,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:45,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:45,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:45,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:53:45,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:45,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 02:53:45,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:45,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:45,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:45,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:53:45,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:45,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 02:53:45,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:45,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:45,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:45,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 02:53:45,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:45,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 02:53:45,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:45,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:45,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 02:53:45,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 02:53:45,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:45,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:53:45,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:45,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:45,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:45,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 02:53:45,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:45,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 02:53:45,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:45,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:45,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:45,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 02:53:45,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:45,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:53:45,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:45,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:45,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:45,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:53:45,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:45,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:53:45,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:45,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:53:45,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:45,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:53:45,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:45,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 02:53:45,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:45,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:45,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:45,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:45,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 02:53:45,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:53:45,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-09-25 02:53:45,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:45,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:53:45,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 02:53:45,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 02:53:45,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:45,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:53:45,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:45,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:45,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:45,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 02:53:45,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:45,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-25 02:53:45,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:45,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:53:45,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:45,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 02:53:45,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:45,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 02:53:45,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:45,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:45,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:45,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:53:45,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:45,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:53:45,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:45,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:53:45,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:45,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:53:45,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:45,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 02:53:45,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:45,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:45,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:45,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:53:45,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:45,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:53:45,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:45,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:53:45,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 02:53:45,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:53:45,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:45,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-09-25 02:53:45,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:45,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:45,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:45,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:53:45,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:45,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:53:45,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:45,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:53:45,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:53:45,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:53:45,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:45,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-09-25 02:53:45,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:45,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:45,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:45,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:53:45,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:45,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:53:45,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:45,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:53:45,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:53:45,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:53:45,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:45,982 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 02:53:45,983 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1209378449] [2020-09-25 02:53:45,983 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:53:45,983 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-25 02:53:45,984 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800214382] [2020-09-25 02:53:45,984 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 02:53:45,985 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:53:45,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 02:53:45,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-09-25 02:53:45,985 INFO L87 Difference]: Start difference. First operand 485 states and 561 transitions. Second operand 13 states. [2020-09-25 02:53:46,496 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:53:47,645 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:53:48,000 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:53:48,328 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:53:48,663 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:53:49,014 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 02:53:49,337 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:53:50,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:53:50,823 INFO L93 Difference]: Finished difference Result 1083 states and 1387 transitions. [2020-09-25 02:53:50,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 02:53:50,824 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 215 [2020-09-25 02:53:50,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:53:50,832 INFO L225 Difference]: With dead ends: 1083 [2020-09-25 02:53:50,832 INFO L226 Difference]: Without dead ends: 708 [2020-09-25 02:53:50,836 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-09-25 02:53:50,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2020-09-25 02:53:50,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 501. [2020-09-25 02:53:50,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 501 states. [2020-09-25 02:53:50,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 571 transitions. [2020-09-25 02:53:50,945 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 571 transitions. Word has length 215 [2020-09-25 02:53:50,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:53:50,945 INFO L479 AbstractCegarLoop]: Abstraction has 501 states and 571 transitions. [2020-09-25 02:53:50,946 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 02:53:50,946 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 571 transitions. [2020-09-25 02:53:50,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-25 02:53:50,949 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:53:50,949 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, 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 02:53:50,949 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 02:53:50,949 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:53:50,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:53:50,950 INFO L82 PathProgramCache]: Analyzing trace with hash -325395952, now seen corresponding path program 1 times [2020-09-25 02:53:50,950 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:53:50,950 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [221518867] [2020-09-25 02:53:50,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:53:50,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:51,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:52,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:52,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-25 02:53:52,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:52,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1237 [2020-09-25 02:53:52,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:52,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 02:53:52,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 02:53:52,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-09-25 02:53:52,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:52,529 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:53:52,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:53:52,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:52,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:52,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:52,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:53:52,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:52,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213 [2020-09-25 02:53:52,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:52,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:52,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:52,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 02:53:52,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:52,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:53:52,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:52,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:52,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:52,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:53:52,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:52,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:53:52,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:52,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:52,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:52,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:53:52,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:52,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:53:52,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:52,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:52,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:52,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:53:52,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:52,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:53:52,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:52,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:52,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:52,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:53:52,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:52,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:53:52,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:52,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:52,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:52,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:53:52,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:52,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:53:52,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:52,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:52,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:52,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:53:52,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:52,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:53:52,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:52,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:52,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:52,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:53:52,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:52,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:53:52,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:52,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:52,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:52,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:53:52,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:52,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 02:53:52,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:52,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:52,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:52,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:53:52,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:52,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:53:52,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:52,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:52,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:52,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:53:52,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:52,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 02:53:52,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:52,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:52,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:52,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 02:53:52,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:52,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 02:53:52,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:52,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:52,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 02:53:52,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 02:53:52,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:52,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:53:52,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:52,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:52,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:52,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 02:53:52,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:52,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 02:53:52,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:52,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:52,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:52,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 02:53:52,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:52,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 02:53:52,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:52,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:52,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:52,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:53:52,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:52,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:53:52,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:52,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:52,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:52,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 02:53:52,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:52,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 02:53:52,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:52,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:52,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:52,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:53:52,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:52,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:53:52,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:52,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:52,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:52,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 02:53:52,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:52,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-25 02:53:52,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:52,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:52,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:52,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:53:52,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:52,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:53:52,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:52,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:53:52,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:53:52,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:53:52,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:52,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-25 02:53:52,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:52,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:52,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:52,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:53:52,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:52,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:53:52,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:52,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:53:52,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:53:52,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:53:52,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:53,027 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 02:53:53,028 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [221518867] [2020-09-25 02:53:53,029 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:53:53,029 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 02:53:53,029 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314998085] [2020-09-25 02:53:53,029 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 02:53:53,030 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:53:53,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 02:53:53,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 02:53:53,031 INFO L87 Difference]: Start difference. First operand 501 states and 571 transitions. Second operand 7 states. [2020-09-25 02:53:53,694 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:53:54,866 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 186