/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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 SequenceOfStatements --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=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 08:24:36,673 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 08:24:36,677 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 08:24:36,715 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 08:24:36,716 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 08:24:36,717 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 08:24:36,719 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 08:24:36,722 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 08:24:36,724 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 08:24:36,725 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 08:24:36,727 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 08:24:36,728 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 08:24:36,728 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 08:24:36,730 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 08:24:36,731 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 08:24:36,733 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 08:24:36,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 08:24:36,742 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 08:24:36,748 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 08:24:36,754 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 08:24:36,759 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 08:24:36,761 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 08:24:36,764 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 08:24:36,765 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 08:24:36,775 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 08:24:36,776 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 08:24:36,776 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 08:24:36,777 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 08:24:36,778 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 08:24:36,779 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-10-28 08:24:36,788 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 08:24:36,789 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 08:24:36,790 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 08:24:36,791 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-10-28 08:24:36,845 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 08:24:36,846 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 08:24:36,851 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 08:24:36,851 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 08:24:36,851 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 08:24:36,852 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 08:24:36,852 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 08:24:36,852 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 08:24:36,853 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 08:24:36,853 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 08:24:36,854 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 08:24:36,854 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 08:24:36,854 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 08:24:36,855 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 08:24:36,855 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 08:24:36,855 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 08:24:36,855 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 08:24:36,855 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 08:24:36,856 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 08:24:36,856 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 08:24:36,856 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 08:24:36,857 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 08:24:36,857 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 08:24:36,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 08:24:36,857 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 08:24:36,857 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 08:24:36,857 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-28 08:24:36,858 INFO L138 SettingsManager]: * To the following directory=dump/ WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-28 08:24:37,241 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 08:24:37,268 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 08:24:37,271 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 08:24:37,273 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 08:24:37,273 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 08:24:37,275 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i [2020-10-28 08:24:37,347 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fb5933c33/c68f5ca4c74d4f3d95e2692eae37e52c/FLAG4ff158987 [2020-10-28 08:24:38,232 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 08:24:38,233 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i [2020-10-28 08:24:38,263 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fb5933c33/c68f5ca4c74d4f3d95e2692eae37e52c/FLAG4ff158987 [2020-10-28 08:24:38,295 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fb5933c33/c68f5ca4c74d4f3d95e2692eae37e52c [2020-10-28 08:24:38,298 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 08:24:38,305 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 08:24:38,307 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 08:24:38,307 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 08:24:38,312 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 08:24:38,313 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:24:38" (1/1) ... [2020-10-28 08:24:38,321 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@631b66c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:24:38, skipping insertion in model container [2020-10-28 08:24:38,321 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:24:38" (1/1) ... [2020-10-28 08:24:38,330 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 08:24:38,398 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 08:24:39,510 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 08:24:39,537 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 08:24:39,770 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 08:24:39,866 INFO L208 MainTranslator]: Completed translation [2020-10-28 08:24:39,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:24:39 WrapperNode [2020-10-28 08:24:39,866 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 08:24:39,867 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 08:24:39,868 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 08:24:39,868 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 08:24:39,881 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:24:39" (1/1) ... [2020-10-28 08:24:39,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:24:39" (1/1) ... [2020-10-28 08:24:39,919 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:24:39" (1/1) ... [2020-10-28 08:24:39,920 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:24:39" (1/1) ... [2020-10-28 08:24:39,993 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:24:39" (1/1) ... [2020-10-28 08:24:40,006 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:24:39" (1/1) ... [2020-10-28 08:24:40,027 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:24:39" (1/1) ... [2020-10-28 08:24:40,058 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 08:24:40,060 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 08:24:40,060 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 08:24:40,064 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 08:24:40,066 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:24:39" (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 [2020-10-28 08:24:40,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 08:24:40,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 08:24:40,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~VOID [2020-10-28 08:24:40,155 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 08:24:40,155 INFO L138 BoogieDeclarations]: Found implementation of procedure outer_sync [2020-10-28 08:24:40,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_9 [2020-10-28 08:24:40,156 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_name [2020-10-28 08:24:40,156 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-28 08:24:40,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-28 08:24:40,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-28 08:24:40,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-28 08:24:40,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-28 08:24:40,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-28 08:24:40,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-28 08:24:40,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-28 08:24:40,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-28 08:24:40,158 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2020-10-28 08:24:40,158 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq_wake [2020-10-28 08:24:40,158 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq_wake [2020-10-28 08:24:40,158 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2020-10-28 08:24:40,159 INFO L138 BoogieDeclarations]: Found implementation of procedure device_may_wakeup [2020-10-28 08:24:40,159 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2020-10-28 08:24:40,159 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2020-10-28 08:24:40,159 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2020-10-28 08:24:40,159 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_check_busy [2020-10-28 08:24:40,160 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_wait_while_busy [2020-10-28 08:24:40,160 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_read_time [2020-10-28 08:24:40,160 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_set_time [2020-10-28 08:24:40,160 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_read_alarm [2020-10-28 08:24:40,160 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_alarm_irq_enable [2020-10-28 08:24:40,160 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_set_alarm [2020-10-28 08:24:40,161 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_proc [2020-10-28 08:24:40,161 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_irq_handler [2020-10-28 08:24:40,161 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_probe [2020-10-28 08:24:40,161 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_remove [2020-10-28 08:24:40,161 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_suspend [2020-10-28 08:24:40,162 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_resume [2020-10-28 08:24:40,162 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_shutdown [2020-10-28 08:24:40,162 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_init [2020-10-28 08:24:40,162 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_exit [2020-10-28 08:24:40,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2020-10-28 08:24:40,163 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2020-10-28 08:24:40,163 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2020-10-28 08:24:40,163 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_interrupt_1 [2020-10-28 08:24:40,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_rtc_class_ops_3 [2020-10-28 08:24:40,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_platform_driver_2 [2020-10-28 08:24:40,163 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2020-10-28 08:24:40,164 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 08:24:40,164 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2020-10-28 08:24:40,164 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2020-10-28 08:24:40,164 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2020-10-28 08:24:40,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kzalloc_22 [2020-10-28 08:24:40,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_rtc_device_register_23 [2020-10-28 08:24:40,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_24 [2020-10-28 08:24:40,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_rtc_device_unregister_25 [2020-10-28 08:24:40,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_26 [2020-10-28 08:24:40,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_rtc_device_unregister_27 [2020-10-28 08:24:40,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-10-28 08:24:40,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-10-28 08:24:40,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-10-28 08:24:40,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-10-28 08:24:40,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_init [2020-10-28 08:24:40,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_check [2020-10-28 08:24:40,166 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-10-28 08:24:40,167 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2020-10-28 08:24:40,167 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2020-10-28 08:24:40,167 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2020-10-28 08:24:40,167 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-10-28 08:24:40,167 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-10-28 08:24:40,167 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_notice [2020-10-28 08:24:40,167 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-10-28 08:24:40,168 INFO L138 BoogieDeclarations]: Found implementation of procedure device_init_wakeup [2020-10-28 08:24:40,168 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2020-10-28 08:24:40,168 INFO L138 BoogieDeclarations]: Found implementation of procedure irq_set_irq_wake [2020-10-28 08:24:40,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-28 08:24:40,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-28 08:24:40,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_2 [2020-10-28 08:24:40,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_3 [2020-10-28 08:24:40,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_3 [2020-10-28 08:24:40,169 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_probe [2020-10-28 08:24:40,169 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2020-10-28 08:24:40,170 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_irq [2020-10-28 08:24:40,170 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2020-10-28 08:24:40,170 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2020-10-28 08:24:40,170 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_device_register [2020-10-28 08:24:40,170 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_device_unregister [2020-10-28 08:24:40,170 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_time_to_tm [2020-10-28 08:24:40,171 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_tm_to_time [2020-10-28 08:24:40,171 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_update_irq [2020-10-28 08:24:40,171 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_valid_tm [2020-10-28 08:24:40,171 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_printf [2020-10-28 08:24:40,171 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_ioremap [2020-10-28 08:24:40,172 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_iounmap [2020-10-28 08:24:40,172 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-28 08:24:40,172 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-28 08:24:40,172 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-28 08:24:40,173 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 08:24:40,173 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 08:24:40,173 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-28 08:24:40,173 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-28 08:24:40,173 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 08:24:40,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 08:24:40,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-28 08:24:40,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-10-28 08:24:40,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-10-28 08:24:40,174 INFO L130 BoogieDeclarations]: Found specification of procedure outer_sync [2020-10-28 08:24:40,174 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~VOID [2020-10-28 08:24:40,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-28 08:24:40,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-28 08:24:40,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-28 08:24:40,175 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-28 08:24:40,175 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2020-10-28 08:24:40,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_9 [2020-10-28 08:24:40,175 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2020-10-28 08:24:40,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_check [2020-10-28 08:24:40,176 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-28 08:24:40,176 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_name [2020-10-28 08:24:40,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kzalloc_22 [2020-10-28 08:24:40,176 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-28 08:24:40,176 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-28 08:24:40,177 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 08:24:40,177 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-28 08:24:40,177 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-28 08:24:40,177 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-28 08:24:40,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-28 08:24:40,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-28 08:24:40,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-28 08:24:40,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-28 08:24:40,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-28 08:24:40,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-28 08:24:40,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-28 08:24:40,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2020-10-28 08:24:40,178 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2020-10-28 08:24:40,179 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2020-10-28 08:24:40,179 INFO L130 BoogieDeclarations]: Found specification of procedure choose_interrupt_1 [2020-10-28 08:24:40,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_rtc_class_ops_3 [2020-10-28 08:24:40,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_platform_driver_2 [2020-10-28 08:24:40,179 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2020-10-28 08:24:40,179 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_ioremap [2020-10-28 08:24:40,180 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_iounmap [2020-10-28 08:24:40,180 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-10-28 08:24:40,180 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2020-10-28 08:24:40,180 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2020-10-28 08:24:40,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_24 [2020-10-28 08:24:40,180 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2020-10-28 08:24:40,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_26 [2020-10-28 08:24:40,181 INFO L130 BoogieDeclarations]: Found specification of procedure irq_set_irq_wake [2020-10-28 08:24:40,181 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq_wake [2020-10-28 08:24:40,181 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq_wake [2020-10-28 08:24:40,181 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_valid_tm [2020-10-28 08:24:40,182 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_tm_to_time [2020-10-28 08:24:40,182 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_time_to_tm [2020-10-28 08:24:40,182 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2020-10-28 08:24:40,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 08:24:40,182 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2020-10-28 08:24:40,182 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2020-10-28 08:24:40,183 INFO L130 BoogieDeclarations]: Found specification of procedure device_may_wakeup [2020-10-28 08:24:40,183 INFO L130 BoogieDeclarations]: Found specification of procedure device_init_wakeup [2020-10-28 08:24:40,183 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2020-10-28 08:24:40,183 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-10-28 08:24:40,183 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-10-28 08:24:40,183 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-10-28 08:24:40,183 INFO L130 BoogieDeclarations]: Found specification of procedure dev_notice [2020-10-28 08:24:40,184 INFO L130 BoogieDeclarations]: Found specification of procedure seq_printf [2020-10-28 08:24:40,184 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2020-10-28 08:24:40,184 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2020-10-28 08:24:40,184 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_device_register [2020-10-28 08:24:40,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_rtc_device_register_23 [2020-10-28 08:24:40,185 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_device_unregister [2020-10-28 08:24:40,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_rtc_device_unregister_25 [2020-10-28 08:24:40,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_rtc_device_unregister_27 [2020-10-28 08:24:40,185 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_update_irq [2020-10-28 08:24:40,185 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2020-10-28 08:24:40,186 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_irq [2020-10-28 08:24:40,186 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2020-10-28 08:24:40,186 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_probe [2020-10-28 08:24:40,186 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2020-10-28 08:24:40,186 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2020-10-28 08:24:40,187 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_check_busy [2020-10-28 08:24:40,187 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_wait_while_busy [2020-10-28 08:24:40,187 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_read_time [2020-10-28 08:24:40,187 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_set_time [2020-10-28 08:24:40,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 08:24:40,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 08:24:40,188 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_read_alarm [2020-10-28 08:24:40,188 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_alarm_irq_enable [2020-10-28 08:24:40,188 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_set_alarm [2020-10-28 08:24:40,188 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_proc [2020-10-28 08:24:40,188 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_irq_handler [2020-10-28 08:24:40,188 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_probe [2020-10-28 08:24:40,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-28 08:24:40,189 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_remove [2020-10-28 08:24:40,189 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_suspend [2020-10-28 08:24:40,189 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_resume [2020-10-28 08:24:40,189 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_shutdown [2020-10-28 08:24:40,189 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_init [2020-10-28 08:24:40,189 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_exit [2020-10-28 08:24:40,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-28 08:24:40,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-28 08:24:40,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_2 [2020-10-28 08:24:40,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_3 [2020-10-28 08:24:40,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_3 [2020-10-28 08:24:40,190 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 08:24:40,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-28 08:24:40,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-10-28 08:24:40,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-10-28 08:24:40,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_init [2020-10-28 08:24:40,191 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-28 08:24:40,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 08:24:40,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 08:24:40,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-28 08:24:40,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 08:24:40,999 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-28 08:24:45,414 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 08:24:45,414 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-28 08:24:45,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:24:45 BoogieIcfgContainer [2020-10-28 08:24:45,419 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 08:24:45,423 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 08:24:45,423 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 08:24:45,426 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 08:24:45,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 08:24:38" (1/3) ... [2020-10-28 08:24:45,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54f9eddb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:24:45, skipping insertion in model container [2020-10-28 08:24:45,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:24:39" (2/3) ... [2020-10-28 08:24:45,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54f9eddb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:24:45, skipping insertion in model container [2020-10-28 08:24:45,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:24:45" (3/3) ... [2020-10-28 08:24:45,430 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i [2020-10-28 08:24:45,443 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 08:24:45,449 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 08:24:45,462 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 08:24:45,507 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 08:24:45,507 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 08:24:45,507 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 08:24:45,507 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 08:24:45,508 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 08:24:45,508 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 08:24:45,508 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 08:24:45,508 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 08:24:45,551 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states. [2020-10-28 08:24:45,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-28 08:24:45,579 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 08:24:45,580 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] [2020-10-28 08:24:45,581 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 08:24:45,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 08:24:45,587 INFO L82 PathProgramCache]: Analyzing trace with hash 536704248, now seen corresponding path program 1 times [2020-10-28 08:24:45,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 08:24:45,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [165521622] [2020-10-28 08:24:45,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 08:24:45,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:24:46,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:24:46,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:24:46,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:24:47,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:24:47,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-28 08:24:47,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 08:24:47,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1761 [2020-10-28 08:24:47,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:24:47,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 08:24:47,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-28 08:24:47,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-28 08:24:47,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 08:24:48,136 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 08:24:48,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 08:24:48,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:24:48,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:24:48,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:24:48,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 08:24:48,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:24:48,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-28 08:24:48,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:24:48,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:24:48,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:24:48,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:24:48,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:24:48,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 08:24:48,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:24:48,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:24:48,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:24:48,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:24:48,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:24:48,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 08:24:48,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:24:48,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:24:48,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:24:48,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:24:48,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:24:48,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 08:24:48,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:24:48,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:24:48,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:24:48,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 08:24:48,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:24:48,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 08:24:48,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:24:48,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:24:48,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:24:48,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:24:48,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:24:48,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 08:24:48,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:24:48,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:24:48,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:24:48,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:24:48,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:24:48,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 08:24:48,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 08:24:48,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:24:48,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 08:24:48,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 08:24:48,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 08:24:48,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:24:48,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-28 08:24:48,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:24:48,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:24:48,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:24:48,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 08:24:48,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:24:48,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 08:24:48,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:24:48,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:24:48,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 08:24:48,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:24:48,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:24:48,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 08:24:48,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:24:48,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:24:48,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:24:48,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:24:48,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:24:48,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 08:24:48,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:24:48,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:24:48,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:24:48,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:24:48,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 08:24:48,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 08:24:48,405 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [165521622] [2020-10-28 08:24:48,407 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 08:24:48,408 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 08:24:48,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816473104] [2020-10-28 08:24:48,414 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 08:24:48,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 08:24:48,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 08:24:48,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-28 08:24:48,432 INFO L87 Difference]: Start difference. First operand 650 states. Second operand 9 states. [2020-10-28 08:24:48,871 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-10-28 08:24:49,473 WARN L193 SmtUtils]: Spent 431.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2020-10-28 08:24:49,945 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-28 08:24:50,486 WARN L193 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-10-28 08:24:50,927 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-10-28 08:24:57,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 08:24:57,188 INFO L93 Difference]: Finished difference Result 1018 states and 1366 transitions. [2020-10-28 08:24:57,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 08:24:57,194 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 51 [2020-10-28 08:24:57,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 08:24:57,214 INFO L225 Difference]: With dead ends: 1018 [2020-10-28 08:24:57,214 INFO L226 Difference]: Without dead ends: 492 [2020-10-28 08:24:57,222 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2020-10-28 08:24:57,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2020-10-28 08:24:57,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 375. [2020-10-28 08:24:57,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states. [2020-10-28 08:24:57,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 459 transitions. [2020-10-28 08:24:57,428 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 459 transitions. Word has length 51 [2020-10-28 08:24:57,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 08:24:57,429 INFO L481 AbstractCegarLoop]: Abstraction has 375 states and 459 transitions. [2020-10-28 08:24:57,429 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 08:24:57,430 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 459 transitions. [2020-10-28 08:24:57,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-28 08:24:57,435 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 08:24:57,435 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-28 08:24:57,436 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 08:24:57,436 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 08:24:57,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 08:24:57,437 INFO L82 PathProgramCache]: Analyzing trace with hash -1907598800, now seen corresponding path program 1 times [2020-10-28 08:24:57,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 08:24:57,437 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1791359992] [2020-10-28 08:24:57,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 08:24:57,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:24:57,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:24:57,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:24:58,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:01,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:01,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 08:25:01,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 08:25:01,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4404 [2020-10-28 08:25:01,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:01,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 08:25:01,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-28 08:25:01,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 08:25:01,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:02,346 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 08:25:02,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 08:25:02,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:02,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:02,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:02,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 08:25:02,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:02,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-28 08:25:02,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:02,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:25:02,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:25:02,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:25:02,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:02,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 08:25:02,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:02,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:02,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:02,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:25:02,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:02,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 08:25:02,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:02,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:25:02,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:25:02,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:25:02,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:02,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 08:25:02,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:02,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:02,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:02,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 08:25:02,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:02,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 08:25:02,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:02,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:25:02,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:25:02,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:25:02,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:02,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 08:25:02,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:02,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:02,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:02,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 08:25:02,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:02,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 08:25:02,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:02,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 08:25:02,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 08:25:02,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 08:25:02,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:02,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-28 08:25:02,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:02,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:02,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:02,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 08:25:02,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:02,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 08:25:02,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:02,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:25:02,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 08:25:02,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:25:02,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:02,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 08:25:02,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:02,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:02,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:02,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:25:02,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:02,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 08:25:02,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:02,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:25:02,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:25:02,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:25:02,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:02,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-28 08:25:02,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:02,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:02,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:02,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-28 08:25:02,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:02,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 08:25:02,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:02,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:25:02,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-28 08:25:02,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:25:02,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:02,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 08:25:02,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:02,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:02,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:02,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 08:25:02,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:02,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 08:25:02,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:02,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:25:02,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:25:02,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:25:02,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:02,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 08:25:02,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:02,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:02,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:02,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:25:02,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:02,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 08:25:02,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:02,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:25:02,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:25:02,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:25:02,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:02,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 08:25:02,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:02,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:02,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:02,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 08:25:02,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:02,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 08:25:02,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:02,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:25:02,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:25:02,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:25:02,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:02,662 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-28 08:25:02,663 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1791359992] [2020-10-28 08:25:02,663 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 08:25:02,663 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-28 08:25:02,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479962484] [2020-10-28 08:25:02,665 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 08:25:02,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 08:25:02,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 08:25:02,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-28 08:25:02,667 INFO L87 Difference]: Start difference. First operand 375 states and 459 transitions. Second operand 9 states. [2020-10-28 08:25:03,050 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-10-28 08:25:03,788 WARN L193 SmtUtils]: Spent 458.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-28 08:25:04,253 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-28 08:25:04,690 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-28 08:25:10,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 08:25:10,174 INFO L93 Difference]: Finished difference Result 853 states and 1078 transitions. [2020-10-28 08:25:10,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 08:25:10,175 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 75 [2020-10-28 08:25:10,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 08:25:10,181 INFO L225 Difference]: With dead ends: 853 [2020-10-28 08:25:10,182 INFO L226 Difference]: Without dead ends: 493 [2020-10-28 08:25:10,184 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-10-28 08:25:10,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2020-10-28 08:25:10,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 376. [2020-10-28 08:25:10,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2020-10-28 08:25:10,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 460 transitions. [2020-10-28 08:25:10,298 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 460 transitions. Word has length 75 [2020-10-28 08:25:10,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 08:25:10,299 INFO L481 AbstractCegarLoop]: Abstraction has 376 states and 460 transitions. [2020-10-28 08:25:10,299 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 08:25:10,299 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 460 transitions. [2020-10-28 08:25:10,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-28 08:25:10,302 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 08:25:10,302 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-28 08:25:10,303 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 08:25:10,303 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 08:25:10,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 08:25:10,341 INFO L82 PathProgramCache]: Analyzing trace with hash -2124042080, now seen corresponding path program 2 times [2020-10-28 08:25:10,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 08:25:10,342 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [170158987] [2020-10-28 08:25:10,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 08:25:10,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:10,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:10,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:11,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:15,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:15,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-28 08:25:15,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 08:25:15,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-28 08:25:15,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:15,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 08:25:15,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-28 08:25:15,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 08:25:15,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:15,839 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 08:25:15,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 08:25:15,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:15,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:15,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:15,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 08:25:15,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:15,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 08:25:15,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:15,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:25:15,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:25:15,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:25:15,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:15,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 08:25:15,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:15,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:15,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:15,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:25:15,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:15,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 08:25:15,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:15,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:25:15,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:25:15,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:25:15,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:15,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 08:25:15,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:15,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:15,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:15,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 08:25:15,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:15,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 08:25:15,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:15,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:25:15,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:25:15,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:25:15,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:15,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 08:25:15,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:15,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:15,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:15,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 08:25:15,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:15,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-28 08:25:15,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:15,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 08:25:15,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 08:25:15,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 08:25:15,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:16,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 08:25:16,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:16,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:16,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:16,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 08:25:16,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:16,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 08:25:16,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:16,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:25:16,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 08:25:16,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:25:16,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:16,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 08:25:16,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:16,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:16,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:16,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:25:16,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:16,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 08:25:16,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:16,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:25:16,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:25:16,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:25:16,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 08:25:16,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-28 08:25:16,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:16,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:16,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:16,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-28 08:25:16,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:16,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 08:25:16,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:16,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:25:16,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-28 08:25:16,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:25:16,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:16,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 08:25:16,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:16,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:16,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:16,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 08:25:16,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:16,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 08:25:16,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:16,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:25:16,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:25:16,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:25:16,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:16,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 08:25:16,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:16,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:16,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:16,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:25:16,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:16,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 08:25:16,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:16,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:25:16,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:25:16,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:25:16,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 08:25:16,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 08:25:16,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:16,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:16,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:16,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 08:25:16,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:16,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 08:25:16,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:16,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:25:16,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:25:16,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:25:16,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:16,182 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-28 08:25:16,184 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [170158987] [2020-10-28 08:25:16,184 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 08:25:16,184 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-28 08:25:16,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966003806] [2020-10-28 08:25:16,185 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 08:25:16,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 08:25:16,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 08:25:16,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-28 08:25:16,187 INFO L87 Difference]: Start difference. First operand 376 states and 460 transitions. Second operand 10 states. [2020-10-28 08:25:16,559 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-10-28 08:25:17,246 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-28 08:25:17,663 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-28 08:25:18,092 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-28 08:25:18,536 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-28 08:25:24,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 08:25:24,129 INFO L93 Difference]: Finished difference Result 854 states and 1079 transitions. [2020-10-28 08:25:24,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 08:25:24,131 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 76 [2020-10-28 08:25:24,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 08:25:24,136 INFO L225 Difference]: With dead ends: 854 [2020-10-28 08:25:24,136 INFO L226 Difference]: Without dead ends: 494 [2020-10-28 08:25:24,138 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2020-10-28 08:25:24,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2020-10-28 08:25:24,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 377. [2020-10-28 08:25:24,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 377 states. [2020-10-28 08:25:24,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 461 transitions. [2020-10-28 08:25:24,212 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 461 transitions. Word has length 76 [2020-10-28 08:25:24,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 08:25:24,212 INFO L481 AbstractCegarLoop]: Abstraction has 377 states and 461 transitions. [2020-10-28 08:25:24,212 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 08:25:24,212 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 461 transitions. [2020-10-28 08:25:24,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-28 08:25:24,215 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 08:25:24,215 INFO L422 BasicCegarLoop]: trace histogram [3, 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] [2020-10-28 08:25:24,215 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 08:25:24,215 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 08:25:24,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 08:25:24,216 INFO L82 PathProgramCache]: Analyzing trace with hash -243849168, now seen corresponding path program 3 times [2020-10-28 08:25:24,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 08:25:24,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [937904618] [2020-10-28 08:25:24,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 08:25:24,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:24,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:24,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:24,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:28,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:28,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-28 08:25:28,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 08:25:28,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4407 [2020-10-28 08:25:28,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:28,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 08:25:28,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-28 08:25:28,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 08:25:28,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:29,004 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 08:25:29,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 08:25:29,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:29,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:29,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:29,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 08:25:29,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:29,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 08:25:29,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:29,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:25:29,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:25:29,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:25:29,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:29,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 08:25:29,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:29,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:29,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:29,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:25:29,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:29,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 08:25:29,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:29,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:25:29,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:25:29,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:25:29,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:29,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 08:25:29,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:29,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:29,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:29,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 08:25:29,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:29,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 08:25:29,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:29,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:25:29,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:25:29,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:25:29,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:29,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 08:25:29,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:29,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:29,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:29,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 08:25:29,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:29,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-28 08:25:29,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:29,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 08:25:29,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 08:25:29,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 08:25:29,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:29,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 08:25:29,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:29,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:29,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:29,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 08:25:29,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:29,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 08:25:29,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:29,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:25:29,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 08:25:29,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:25:29,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:29,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 08:25:29,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:29,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:29,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:29,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:25:29,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:29,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 08:25:29,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:29,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:25:29,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:25:29,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:25:29,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:29,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-28 08:25:29,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:29,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:29,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:29,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-28 08:25:29,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:29,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 08:25:29,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:29,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:25:29,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-28 08:25:29,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:25:29,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:29,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 08:25:29,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:29,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:29,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:29,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 08:25:29,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:29,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 08:25:29,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:29,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:25:29,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:25:29,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:25:29,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:29,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 08:25:29,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:29,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:29,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:29,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:25:29,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:29,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 08:25:29,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:29,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:25:29,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:25:29,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:25:29,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:29,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 08:25:29,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:29,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:29,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:29,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 08:25:29,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:29,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 08:25:29,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:29,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:25:29,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:25:29,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:25:29,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:29,342 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-28 08:25:29,343 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [937904618] [2020-10-28 08:25:29,343 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 08:25:29,343 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-28 08:25:29,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158520141] [2020-10-28 08:25:29,345 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-28 08:25:29,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 08:25:29,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-28 08:25:29,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-28 08:25:29,350 INFO L87 Difference]: Start difference. First operand 377 states and 461 transitions. Second operand 11 states. [2020-10-28 08:25:29,743 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-10-28 08:25:30,385 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-28 08:25:30,819 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-28 08:25:31,243 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-28 08:25:31,681 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-28 08:25:32,104 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-28 08:25:36,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 08:25:36,724 INFO L93 Difference]: Finished difference Result 855 states and 1080 transitions. [2020-10-28 08:25:36,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 08:25:36,725 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 77 [2020-10-28 08:25:36,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 08:25:36,729 INFO L225 Difference]: With dead ends: 855 [2020-10-28 08:25:36,730 INFO L226 Difference]: Without dead ends: 495 [2020-10-28 08:25:36,731 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2020-10-28 08:25:36,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2020-10-28 08:25:36,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 378. [2020-10-28 08:25:36,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 378 states. [2020-10-28 08:25:36,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 462 transitions. [2020-10-28 08:25:36,811 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 462 transitions. Word has length 77 [2020-10-28 08:25:36,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 08:25:36,811 INFO L481 AbstractCegarLoop]: Abstraction has 378 states and 462 transitions. [2020-10-28 08:25:36,812 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-28 08:25:36,812 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 462 transitions. [2020-10-28 08:25:36,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-28 08:25:36,814 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 08:25:36,814 INFO L422 BasicCegarLoop]: trace histogram [4, 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] [2020-10-28 08:25:36,814 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 08:25:36,815 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 08:25:36,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 08:25:36,815 INFO L82 PathProgramCache]: Analyzing trace with hash -2087411040, now seen corresponding path program 4 times [2020-10-28 08:25:36,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 08:25:36,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1709257044] [2020-10-28 08:25:36,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 08:25:36,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:36,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:37,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:38,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:38,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-28 08:25:38,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 08:25:38,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1516 [2020-10-28 08:25:38,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:38,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 08:25:38,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 08:25:38,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-28 08:25:38,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 08:25:38,811 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 08:25:38,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 08:25:38,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:38,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:38,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:38,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 08:25:38,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:38,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-28 08:25:38,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:38,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 08:25:38,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:25:38,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 08:25:38,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:38,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 08:25:38,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:38,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:38,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:38,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:25:38,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:38,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 08:25:38,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:38,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 08:25:38,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:25:38,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 08:25:38,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:38,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 08:25:38,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:38,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:38,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:38,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 08:25:38,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:38,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 08:25:38,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:38,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 08:25:38,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:25:38,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 08:25:38,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:38,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 08:25:38,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:38,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:39,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:39,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 08:25:39,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:39,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 08:25:39,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:39,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 08:25:39,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:25:39,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 08:25:39,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:39,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-28 08:25:39,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:39,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:39,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:39,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 08:25:39,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:39,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 08:25:39,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:39,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:25:39,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 08:25:39,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:25:39,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:39,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 08:25:39,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:39,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:39,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:39,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:25:39,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:39,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 08:25:39,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:39,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:25:39,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:25:39,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:25:39,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:39,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-28 08:25:39,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:39,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:39,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:39,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-28 08:25:39,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:39,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 08:25:39,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:39,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:25:39,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-28 08:25:39,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:25:39,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:39,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 08:25:39,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:39,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:39,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:39,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 08:25:39,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:39,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 08:25:39,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:39,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:25:39,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:25:39,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:25:39,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:39,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 08:25:39,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:39,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:39,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:39,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:25:39,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:39,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 08:25:39,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:39,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:25:39,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:25:39,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:25:39,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:39,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 08:25:39,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:39,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:39,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:39,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 08:25:39,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:39,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 08:25:39,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:39,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:25:39,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:25:39,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:25:39,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:39,136 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-28 08:25:39,136 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1709257044] [2020-10-28 08:25:39,136 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 08:25:39,136 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 08:25:39,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947753148] [2020-10-28 08:25:39,137 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 08:25:39,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 08:25:39,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 08:25:39,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-28 08:25:39,139 INFO L87 Difference]: Start difference. First operand 378 states and 462 transitions. Second operand 9 states. [2020-10-28 08:25:39,543 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-10-28 08:25:40,090 WARN L193 SmtUtils]: Spent 431.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2020-10-28 08:25:40,572 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-28 08:25:41,385 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-10-28 08:25:41,876 WARN L193 SmtUtils]: Spent 431.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-10-28 08:25:42,475 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-10-28 08:25:43,714 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-28 08:25:52,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 08:25:52,637 INFO L93 Difference]: Finished difference Result 1328 states and 1706 transitions. [2020-10-28 08:25:52,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-28 08:25:52,637 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 78 [2020-10-28 08:25:52,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 08:25:52,646 INFO L225 Difference]: With dead ends: 1328 [2020-10-28 08:25:52,647 INFO L226 Difference]: Without dead ends: 971 [2020-10-28 08:25:52,649 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2020-10-28 08:25:52,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2020-10-28 08:25:52,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 754. [2020-10-28 08:25:52,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 754 states. [2020-10-28 08:25:52,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 936 transitions. [2020-10-28 08:25:52,836 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 936 transitions. Word has length 78 [2020-10-28 08:25:52,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 08:25:52,837 INFO L481 AbstractCegarLoop]: Abstraction has 754 states and 936 transitions. [2020-10-28 08:25:52,837 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 08:25:52,837 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 936 transitions. [2020-10-28 08:25:52,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-28 08:25:52,840 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 08:25:52,840 INFO L422 BasicCegarLoop]: trace histogram [4, 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] [2020-10-28 08:25:52,840 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 08:25:52,840 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 08:25:52,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 08:25:52,841 INFO L82 PathProgramCache]: Analyzing trace with hash 1093159908, now seen corresponding path program 1 times [2020-10-28 08:25:52,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 08:25:52,841 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [809812785] [2020-10-28 08:25:52,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 08:25:52,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:52,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:52,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:53,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:53,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-28 08:25:53,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 08:25:53,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 922 [2020-10-28 08:25:53,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:53,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 08:25:53,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 08:25:53,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-28 08:25:53,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:54,241 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 08:25:54,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 08:25:54,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:54,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:54,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:54,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 08:25:54,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:54,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-28 08:25:54,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:54,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 08:25:54,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:25:54,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 08:25:54,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:54,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 08:25:54,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:54,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:54,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:54,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:25:54,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:54,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 08:25:54,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:54,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 08:25:54,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:25:54,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 08:25:54,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:54,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 08:25:54,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:54,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:54,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:54,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 08:25:54,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:54,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 08:25:54,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:54,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 08:25:54,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:25:54,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 08:25:54,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:54,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 08:25:54,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:54,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:54,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:54,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 08:25:54,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:54,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 08:25:54,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:54,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 08:25:54,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:25:54,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 08:25:54,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:54,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-28 08:25:54,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:54,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:54,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:54,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 08:25:54,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:54,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 08:25:54,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:54,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:25:54,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 08:25:54,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:25:54,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:54,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 08:25:54,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:54,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:54,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:54,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:25:54,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:54,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 08:25:54,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:54,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:25:54,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:25:54,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:25:54,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:54,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-28 08:25:54,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:54,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:54,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:54,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-28 08:25:54,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:54,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 08:25:54,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:54,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:25:54,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-28 08:25:54,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:25:54,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:54,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 08:25:54,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:54,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:54,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:54,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 08:25:54,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:54,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 08:25:54,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:54,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:25:54,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:25:54,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:25:54,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:25:54,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 08:25:54,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:54,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:54,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:54,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:25:54,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:54,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 08:25:54,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:54,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:25:54,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:25:54,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:25:54,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 08:25:54,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 08:25:54,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:25:54,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:25:54,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:25:54,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 08:25:54,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:25:54,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 08:25:54,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:25:54,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:25:54,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:25:54,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:25:54,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 08:25:54,538 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-28 08:25:54,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [809812785] [2020-10-28 08:25:54,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 08:25:54,539 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 08:25:54,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416037582] [2020-10-28 08:25:54,539 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 08:25:54,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 08:25:54,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 08:25:54,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-28 08:25:54,541 INFO L87 Difference]: Start difference. First operand 754 states and 936 transitions. Second operand 9 states. [2020-10-28 08:25:55,012 WARN L193 SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-10-28 08:25:55,502 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2020-10-28 08:25:55,969 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-28 08:25:56,812 WARN L193 SmtUtils]: Spent 421.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-10-28 08:25:57,287 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-10-28 08:25:57,730 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-10-28 08:26:02,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 08:26:02,719 INFO L93 Difference]: Finished difference Result 1697 states and 2174 transitions. [2020-10-28 08:26:02,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 08:26:02,722 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 79 [2020-10-28 08:26:02,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 08:26:02,728 INFO L225 Difference]: With dead ends: 1697 [2020-10-28 08:26:02,728 INFO L226 Difference]: Without dead ends: 964 [2020-10-28 08:26:02,732 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2020-10-28 08:26:02,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2020-10-28 08:26:02,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 758. [2020-10-28 08:26:02,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 758 states. [2020-10-28 08:26:02,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 758 states to 758 states and 936 transitions. [2020-10-28 08:26:02,897 INFO L78 Accepts]: Start accepts. Automaton has 758 states and 936 transitions. Word has length 79 [2020-10-28 08:26:02,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 08:26:02,897 INFO L481 AbstractCegarLoop]: Abstraction has 758 states and 936 transitions. [2020-10-28 08:26:02,897 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 08:26:02,898 INFO L276 IsEmpty]: Start isEmpty. Operand 758 states and 936 transitions. [2020-10-28 08:26:02,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-28 08:26:02,900 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 08:26:02,900 INFO L422 BasicCegarLoop]: trace histogram [4, 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] [2020-10-28 08:26:02,901 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 08:26:02,901 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 08:26:02,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 08:26:02,901 INFO L82 PathProgramCache]: Analyzing trace with hash -660419852, now seen corresponding path program 1 times [2020-10-28 08:26:02,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 08:26:02,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1655186674] [2020-10-28 08:26:02,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 08:26:02,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:02,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:03,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:03,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:03,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 08:26:03,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 08:26:03,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-10-28 08:26:03,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:03,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 08:26:03,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-28 08:26:03,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 08:26:03,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:03,569 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 08:26:03,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 08:26:03,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:03,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:03,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:03,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 08:26:03,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:03,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 08:26:03,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:03,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:26:03,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:26:03,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:26:03,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:03,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 08:26:03,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:03,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:03,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:03,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:26:03,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:03,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 08:26:03,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:03,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:26:03,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:26:03,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:26:03,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:03,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 08:26:03,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:03,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:03,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:03,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 08:26:03,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:03,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 08:26:03,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:03,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:26:03,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:26:03,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:26:03,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:03,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 08:26:03,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:03,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:03,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:03,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 08:26:03,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:03,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 08:26:03,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:03,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:26:03,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:26:03,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:26:03,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 08:26:03,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 08:26:03,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:03,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:03,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:03,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 08:26:03,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:03,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 08:26:03,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:03,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:26:03,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 08:26:03,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:26:03,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:03,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 08:26:03,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:03,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:03,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:03,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:26:03,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:03,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 08:26:03,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:03,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:26:03,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:26:03,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:26:03,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 08:26:03,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-28 08:26:03,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:03,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:03,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:03,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-28 08:26:03,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:03,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 08:26:03,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:03,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:26:03,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-28 08:26:03,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:26:03,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 08:26:03,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 08:26:03,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:03,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:03,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:03,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 08:26:03,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:03,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 08:26:03,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:03,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:26:03,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:26:03,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:26:03,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:03,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 08:26:03,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:03,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:03,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:03,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:26:03,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:03,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 08:26:03,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:03,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:26:03,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:26:03,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:26:03,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:03,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 08:26:03,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:03,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:03,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:03,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 08:26:03,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:03,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 08:26:03,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:03,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:26:03,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:26:03,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:26:03,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:03,817 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-28 08:26:03,818 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1655186674] [2020-10-28 08:26:03,818 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 08:26:03,818 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 08:26:03,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131650682] [2020-10-28 08:26:03,819 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 08:26:03,819 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 08:26:03,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 08:26:03,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-28 08:26:03,820 INFO L87 Difference]: Start difference. First operand 758 states and 936 transitions. Second operand 7 states. [2020-10-28 08:26:04,245 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-10-28 08:26:04,674 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2020-10-28 08:26:05,075 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-28 08:26:10,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 08:26:10,018 INFO L93 Difference]: Finished difference Result 2127 states and 2715 transitions. [2020-10-28 08:26:10,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 08:26:10,023 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 76 [2020-10-28 08:26:10,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 08:26:10,032 INFO L225 Difference]: With dead ends: 2127 [2020-10-28 08:26:10,032 INFO L226 Difference]: Without dead ends: 1390 [2020-10-28 08:26:10,035 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-28 08:26:10,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1390 states. [2020-10-28 08:26:10,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1390 to 1115. [2020-10-28 08:26:10,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1115 states. [2020-10-28 08:26:10,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1115 states to 1115 states and 1384 transitions. [2020-10-28 08:26:10,274 INFO L78 Accepts]: Start accepts. Automaton has 1115 states and 1384 transitions. Word has length 76 [2020-10-28 08:26:10,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 08:26:10,275 INFO L481 AbstractCegarLoop]: Abstraction has 1115 states and 1384 transitions. [2020-10-28 08:26:10,275 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 08:26:10,275 INFO L276 IsEmpty]: Start isEmpty. Operand 1115 states and 1384 transitions. [2020-10-28 08:26:10,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-28 08:26:10,277 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 08:26:10,278 INFO L422 BasicCegarLoop]: trace histogram [4, 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] [2020-10-28 08:26:10,278 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 08:26:10,278 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 08:26:10,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 08:26:10,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1106460925, now seen corresponding path program 1 times [2020-10-28 08:26:10,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 08:26:10,279 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1730077000] [2020-10-28 08:26:10,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 08:26:10,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:10,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:10,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:11,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:11,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-28 08:26:11,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 08:26:11,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 769 [2020-10-28 08:26:11,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:11,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 08:26:11,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 08:26:11,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-28 08:26:11,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:11,474 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 08:26:11,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 08:26:11,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:11,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:11,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:11,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 08:26:11,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:11,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-28 08:26:11,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:11,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 08:26:11,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:26:11,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 08:26:11,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:11,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 08:26:11,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:11,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:11,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:11,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:26:11,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:11,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 08:26:11,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:11,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 08:26:11,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:26:11,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 08:26:11,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:11,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 08:26:11,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:11,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:11,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:11,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 08:26:11,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:11,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 08:26:11,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:11,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 08:26:11,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:26:11,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 08:26:11,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:11,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 08:26:11,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:11,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:11,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:11,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 08:26:11,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:11,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 08:26:11,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:11,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 08:26:11,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:26:11,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 08:26:11,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:11,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-28 08:26:11,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:11,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:11,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:11,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 08:26:11,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:11,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 08:26:11,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:11,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:26:11,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 08:26:11,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:26:11,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:11,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 08:26:11,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:11,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:11,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:11,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:26:11,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:11,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 08:26:11,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:11,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:26:11,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:26:11,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:26:11,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:11,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-28 08:26:11,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:11,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:11,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:11,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-28 08:26:11,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:11,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 08:26:11,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:11,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:26:11,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-28 08:26:11,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:26:11,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:11,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 08:26:11,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:11,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:11,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:11,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 08:26:11,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:11,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 08:26:11,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:11,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:26:11,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:26:11,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:26:11,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:11,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 08:26:11,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:11,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:11,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:11,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:26:11,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:11,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 08:26:11,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:11,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:26:11,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:26:11,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:26:11,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:11,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 08:26:11,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:11,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:11,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:11,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 08:26:11,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:11,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 08:26:11,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:11,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:26:11,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:26:11,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:26:11,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:11,806 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-28 08:26:11,807 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1730077000] [2020-10-28 08:26:11,807 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 08:26:11,807 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 08:26:11,807 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767970352] [2020-10-28 08:26:11,808 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 08:26:11,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 08:26:11,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 08:26:11,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-28 08:26:11,809 INFO L87 Difference]: Start difference. First operand 1115 states and 1384 transitions. Second operand 9 states. [2020-10-28 08:26:12,197 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-10-28 08:26:12,706 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2020-10-28 08:26:13,176 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-28 08:26:14,054 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-10-28 08:26:14,489 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-10-28 08:26:14,964 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-10-28 08:26:19,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 08:26:19,841 INFO L93 Difference]: Finished difference Result 2493 states and 3168 transitions. [2020-10-28 08:26:19,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 08:26:19,842 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 80 [2020-10-28 08:26:19,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 08:26:19,859 INFO L225 Difference]: With dead ends: 2493 [2020-10-28 08:26:19,860 INFO L226 Difference]: Without dead ends: 1413 [2020-10-28 08:26:19,866 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2020-10-28 08:26:19,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1413 states. [2020-10-28 08:26:20,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1413 to 1123. [2020-10-28 08:26:20,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1123 states. [2020-10-28 08:26:20,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1123 states to 1123 states and 1386 transitions. [2020-10-28 08:26:20,195 INFO L78 Accepts]: Start accepts. Automaton has 1123 states and 1386 transitions. Word has length 80 [2020-10-28 08:26:20,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 08:26:20,195 INFO L481 AbstractCegarLoop]: Abstraction has 1123 states and 1386 transitions. [2020-10-28 08:26:20,196 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 08:26:20,196 INFO L276 IsEmpty]: Start isEmpty. Operand 1123 states and 1386 transitions. [2020-10-28 08:26:20,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-28 08:26:20,198 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 08:26:20,198 INFO L422 BasicCegarLoop]: trace histogram [4, 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] [2020-10-28 08:26:20,199 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 08:26:20,199 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 08:26:20,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 08:26:20,199 INFO L82 PathProgramCache]: Analyzing trace with hash 1718641889, now seen corresponding path program 1 times [2020-10-28 08:26:20,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 08:26:20,201 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [175264899] [2020-10-28 08:26:20,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 08:26:20,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:20,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:20,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:20,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:20,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-28 08:26:20,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 08:26:20,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 448 [2020-10-28 08:26:20,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:20,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 08:26:20,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 08:26:20,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-28 08:26:20,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:21,091 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 08:26:21,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 08:26:21,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:21,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:21,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:21,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 08:26:21,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:21,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-28 08:26:21,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:21,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 08:26:21,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:26:21,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 08:26:21,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:21,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 08:26:21,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:21,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:21,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:21,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:26:21,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:21,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 08:26:21,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:21,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 08:26:21,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:26:21,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 08:26:21,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:21,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 08:26:21,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:21,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:21,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:21,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 08:26:21,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:21,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 08:26:21,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:21,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 08:26:21,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:26:21,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 08:26:21,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:21,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 08:26:21,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:21,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:21,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:21,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 08:26:21,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:21,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 08:26:21,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:21,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 08:26:21,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:26:21,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 08:26:21,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:21,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-28 08:26:21,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:21,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:21,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:21,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 08:26:21,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:21,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 08:26:21,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:21,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:26:21,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 08:26:21,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:26:21,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:21,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 08:26:21,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:21,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:21,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:21,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:26:21,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:21,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 08:26:21,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:21,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:26:21,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:26:21,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:26:21,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:21,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-28 08:26:21,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:21,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:21,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:21,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-28 08:26:21,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:21,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 08:26:21,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:21,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:26:21,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-28 08:26:21,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:26:21,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:21,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 08:26:21,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:21,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:21,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:21,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 08:26:21,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:21,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 08:26:21,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:21,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:26:21,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:26:21,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:26:21,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:21,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 08:26:21,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:21,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:21,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:21,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:26:21,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:21,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 08:26:21,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:21,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:26:21,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:26:21,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:26:21,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:21,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 08:26:21,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:21,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:21,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:21,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 08:26:21,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:21,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 08:26:21,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:21,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:26:21,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:26:21,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:26:21,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:21,344 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-28 08:26:21,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [175264899] [2020-10-28 08:26:21,344 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 08:26:21,345 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 08:26:21,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165033805] [2020-10-28 08:26:21,345 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 08:26:21,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 08:26:21,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 08:26:21,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-28 08:26:21,346 INFO L87 Difference]: Start difference. First operand 1123 states and 1386 transitions. Second operand 9 states. [2020-10-28 08:26:21,740 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-10-28 08:26:22,254 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2020-10-28 08:26:22,744 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-28 08:26:23,628 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-10-28 08:26:24,101 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-10-28 08:26:24,579 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-10-28 08:26:29,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 08:26:29,435 INFO L93 Difference]: Finished difference Result 2337 states and 2941 transitions. [2020-10-28 08:26:29,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 08:26:29,435 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 81 [2020-10-28 08:26:29,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 08:26:29,444 INFO L225 Difference]: With dead ends: 2337 [2020-10-28 08:26:29,444 INFO L226 Difference]: Without dead ends: 1249 [2020-10-28 08:26:29,448 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2020-10-28 08:26:29,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2020-10-28 08:26:29,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 1090. [2020-10-28 08:26:29,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1090 states. [2020-10-28 08:26:29,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1090 states to 1090 states and 1352 transitions. [2020-10-28 08:26:29,668 INFO L78 Accepts]: Start accepts. Automaton has 1090 states and 1352 transitions. Word has length 81 [2020-10-28 08:26:29,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 08:26:29,669 INFO L481 AbstractCegarLoop]: Abstraction has 1090 states and 1352 transitions. [2020-10-28 08:26:29,669 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 08:26:29,669 INFO L276 IsEmpty]: Start isEmpty. Operand 1090 states and 1352 transitions. [2020-10-28 08:26:29,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-28 08:26:29,672 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 08:26:29,672 INFO L422 BasicCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 08:26:29,673 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 08:26:29,673 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 08:26:29,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 08:26:29,673 INFO L82 PathProgramCache]: Analyzing trace with hash -372231242, now seen corresponding path program 1 times [2020-10-28 08:26:29,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 08:26:29,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [686195721] [2020-10-28 08:26:29,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 08:26:29,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:29,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:29,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:30,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:31,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:32,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:32,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-28 08:26:32,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 08:26:32,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2984 [2020-10-28 08:26:32,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:32,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 08:26:32,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-10-28 08:26:32,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-28 08:26:32,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:33,155 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 08:26:33,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 08:26:33,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:33,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:33,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:33,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 08:26:33,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:33,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 08:26:33,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:33,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:26:33,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:26:33,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:26:33,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:33,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 08:26:33,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:33,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:33,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:33,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:26:33,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:33,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 08:26:33,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:33,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:26:33,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:26:33,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:26:33,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:33,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 08:26:33,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:33,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:33,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:33,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 08:26:33,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:33,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 08:26:33,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:33,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:26:33,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:26:33,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:26:33,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:33,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 08:26:33,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:33,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:33,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:33,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 08:26:33,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:33,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 08:26:33,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:33,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:26:33,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:26:33,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:26:33,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:33,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 08:26:33,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:33,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:33,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:33,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 08:26:33,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:33,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 08:26:33,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:33,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 08:26:33,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:26:33,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-28 08:26:33,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:33,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 08:26:33,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:33,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:33,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:33,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 08:26:33,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:33,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 08:26:33,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:33,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 08:26:33,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:26:33,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 08:26:33,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:33,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-28 08:26:33,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:33,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:33,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:33,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 08:26:33,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:33,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 08:26:33,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:33,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:26:33,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 08:26:33,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:26:33,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:33,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 08:26:33,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:33,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:33,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:33,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:26:33,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:33,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 08:26:33,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:33,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:26:33,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:26:33,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:26:33,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:33,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-28 08:26:33,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:33,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:33,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:33,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-28 08:26:33,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:33,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 08:26:33,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:33,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:26:33,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-28 08:26:33,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:26:33,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:33,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 08:26:33,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:33,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:33,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:33,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 08:26:33,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:33,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 08:26:33,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:33,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:26:33,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:26:33,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:26:33,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:33,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 08:26:33,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:33,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:33,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:33,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:26:33,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:33,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 08:26:33,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:33,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:26:33,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:26:33,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:26:33,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:33,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 08:26:33,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:33,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:33,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:33,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 08:26:33,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:33,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 08:26:33,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:33,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:26:33,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:26:33,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:26:33,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:33,529 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-28 08:26:33,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [686195721] [2020-10-28 08:26:33,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 08:26:33,529 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-28 08:26:33,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958057690] [2020-10-28 08:26:33,530 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-28 08:26:33,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 08:26:33,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-28 08:26:33,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-10-28 08:26:33,531 INFO L87 Difference]: Start difference. First operand 1090 states and 1352 transitions. Second operand 14 states. [2020-10-28 08:26:33,971 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-10-28 08:26:34,514 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2020-10-28 08:26:34,992 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-28 08:26:35,644 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-10-28 08:26:36,109 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-10-28 08:26:36,597 WARN L193 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-10-28 08:26:37,086 WARN L193 SmtUtils]: Spent 421.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-10-28 08:26:37,516 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-10-28 08:26:37,982 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-10-28 08:26:38,447 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-10-28 08:26:39,274 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-28 08:26:39,801 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2020-10-28 08:26:40,363 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-28 08:26:47,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 08:26:47,899 INFO L93 Difference]: Finished difference Result 2850 states and 3590 transitions. [2020-10-28 08:26:47,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-28 08:26:47,900 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 93 [2020-10-28 08:26:47,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 08:26:47,912 INFO L225 Difference]: With dead ends: 2850 [2020-10-28 08:26:47,912 INFO L226 Difference]: Without dead ends: 1802 [2020-10-28 08:26:47,916 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=318, Invalid=738, Unknown=0, NotChecked=0, Total=1056 [2020-10-28 08:26:47,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1802 states. [2020-10-28 08:26:48,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1802 to 1462. [2020-10-28 08:26:48,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1462 states. [2020-10-28 08:26:48,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1462 states to 1462 states and 1804 transitions. [2020-10-28 08:26:48,265 INFO L78 Accepts]: Start accepts. Automaton has 1462 states and 1804 transitions. Word has length 93 [2020-10-28 08:26:48,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 08:26:48,266 INFO L481 AbstractCegarLoop]: Abstraction has 1462 states and 1804 transitions. [2020-10-28 08:26:48,266 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-28 08:26:48,266 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 1804 transitions. [2020-10-28 08:26:48,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-28 08:26:48,270 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 08:26:48,270 INFO L422 BasicCegarLoop]: trace histogram [4, 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] [2020-10-28 08:26:48,270 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 08:26:48,270 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 08:26:48,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 08:26:48,272 INFO L82 PathProgramCache]: Analyzing trace with hash 2109255693, now seen corresponding path program 1 times [2020-10-28 08:26:48,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 08:26:48,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1119155479] [2020-10-28 08:26:48,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 08:26:48,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:48,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:48,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:48,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:49,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:51,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:51,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-28 08:26:51,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 08:26:51,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2735 [2020-10-28 08:26:51,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:51,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 08:26:51,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-10-28 08:26:51,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-28 08:26:51,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:51,464 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 08:26:51,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 08:26:51,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:51,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:51,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:51,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 08:26:51,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:51,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 08:26:51,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:51,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:26:51,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:26:51,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:26:51,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:51,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 08:26:51,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:51,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:51,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:51,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:26:51,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:51,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 08:26:51,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:51,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:26:51,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:26:51,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:26:51,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:51,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 08:26:51,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:51,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:51,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:51,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 08:26:51,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:51,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 08:26:51,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:51,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:26:51,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:26:51,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:26:51,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:51,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 08:26:51,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:51,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:51,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:51,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 08:26:51,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:51,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 08:26:51,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:51,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:26:51,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:26:51,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:26:51,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:51,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 08:26:51,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:51,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:51,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:51,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-28 08:26:51,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:51,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 08:26:51,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:51,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 08:26:51,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:26:51,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 08:26:51,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:51,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 08:26:51,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:51,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:51,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:51,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 08:26:51,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:51,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 08:26:51,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:51,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 08:26:51,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:26:51,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 08:26:51,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:51,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-28 08:26:51,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:51,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:51,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:51,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 08:26:51,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:51,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 08:26:51,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:51,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:26:51,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 08:26:51,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:26:51,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:51,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 08:26:51,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:51,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:51,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:51,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:26:51,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:51,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 08:26:51,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:51,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:26:51,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:26:51,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:26:51,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:51,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-28 08:26:51,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:51,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:51,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:51,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-28 08:26:51,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:51,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 08:26:51,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:51,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:26:51,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-28 08:26:51,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:26:51,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 08:26:51,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 08:26:51,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:51,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:51,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:51,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 08:26:51,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:51,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 08:26:51,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:51,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:26:51,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:26:51,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:26:51,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:51,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 08:26:51,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:51,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:51,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:51,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:26:51,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:51,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 08:26:51,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:51,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:26:51,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:26:51,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:26:51,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:51,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 08:26:51,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:26:51,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:26:51,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:26:51,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 08:26:51,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:26:51,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 08:26:51,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:26:51,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:26:51,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:26:51,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:26:51,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:26:51,833 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-28 08:26:51,834 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1119155479] [2020-10-28 08:26:51,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 08:26:51,834 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-28 08:26:51,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916081187] [2020-10-28 08:26:51,835 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-28 08:26:51,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 08:26:51,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-28 08:26:51,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2020-10-28 08:26:51,836 INFO L87 Difference]: Start difference. First operand 1462 states and 1804 transitions. Second operand 13 states. [2020-10-28 08:26:52,216 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-10-28 08:26:52,726 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2020-10-28 08:26:53,212 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-28 08:26:53,852 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-10-28 08:26:54,310 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-10-28 08:26:54,845 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-10-28 08:26:55,276 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-10-28 08:26:55,759 WARN L193 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-10-28 08:26:56,334 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-10-28 08:26:56,976 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-28 08:26:57,474 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-10-28 08:26:58,115 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-28 08:27:05,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 08:27:05,385 INFO L93 Difference]: Finished difference Result 3710 states and 4676 transitions. [2020-10-28 08:27:05,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-28 08:27:05,386 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 94 [2020-10-28 08:27:05,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 08:27:05,399 INFO L225 Difference]: With dead ends: 3710 [2020-10-28 08:27:05,399 INFO L226 Difference]: Without dead ends: 2290 [2020-10-28 08:27:05,404 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 26 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=286, Invalid=644, Unknown=0, NotChecked=0, Total=930 [2020-10-28 08:27:05,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2290 states. [2020-10-28 08:27:05,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2290 to 1876. [2020-10-28 08:27:05,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1876 states. [2020-10-28 08:27:05,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1876 states to 1876 states and 2321 transitions. [2020-10-28 08:27:05,711 INFO L78 Accepts]: Start accepts. Automaton has 1876 states and 2321 transitions. Word has length 94 [2020-10-28 08:27:05,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 08:27:05,711 INFO L481 AbstractCegarLoop]: Abstraction has 1876 states and 2321 transitions. [2020-10-28 08:27:05,711 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-28 08:27:05,711 INFO L276 IsEmpty]: Start isEmpty. Operand 1876 states and 2321 transitions. [2020-10-28 08:27:05,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-28 08:27:05,715 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 08:27:05,716 INFO L422 BasicCegarLoop]: trace histogram [4, 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] [2020-10-28 08:27:05,716 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 08:27:05,716 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 08:27:05,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 08:27:05,716 INFO L82 PathProgramCache]: Analyzing trace with hash -2081940497, now seen corresponding path program 1 times [2020-10-28 08:27:05,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 08:27:05,717 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2132616746] [2020-10-28 08:27:05,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 08:27:05,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:05,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:05,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:06,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:07,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:08,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:08,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-28 08:27:08,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 08:27:08,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2542 [2020-10-28 08:27:08,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:08,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 08:27:08,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-28 08:27:08,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-28 08:27:08,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:08,709 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 08:27:08,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 08:27:08,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:08,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:08,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:08,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 08:27:08,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:27:08,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 08:27:08,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:08,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:27:08,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:27:08,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:27:08,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:08,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 08:27:08,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:08,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:08,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:08,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:27:08,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:27:08,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 08:27:08,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:08,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:27:08,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:27:08,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:27:08,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:08,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 08:27:08,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:08,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:08,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:08,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 08:27:08,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:27:08,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 08:27:08,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:08,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:27:08,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:27:08,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:27:08,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:08,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 08:27:08,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:08,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:08,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:08,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 08:27:08,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:27:08,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 08:27:08,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:08,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:27:08,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:27:08,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:27:08,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:08,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 08:27:08,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:08,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:08,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:08,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-28 08:27:08,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:27:08,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 08:27:08,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:08,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 08:27:08,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:27:08,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-28 08:27:08,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:08,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 08:27:08,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:08,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:08,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:08,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 08:27:08,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:27:08,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 08:27:08,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:08,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 08:27:08,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:27:08,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 08:27:08,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:08,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-28 08:27:08,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:08,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:08,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:08,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 08:27:08,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:27:08,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 08:27:08,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:08,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:27:08,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 08:27:08,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:27:08,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:08,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 08:27:08,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:08,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:08,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:08,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:27:08,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:27:08,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 08:27:08,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:08,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:27:08,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:27:08,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:27:08,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:09,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-28 08:27:09,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:09,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:09,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:09,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-28 08:27:09,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:27:09,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 08:27:09,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:09,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:27:09,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-28 08:27:09,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:27:09,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:09,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 08:27:09,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:09,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:09,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:09,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 08:27:09,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:27:09,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 08:27:09,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:09,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:27:09,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:27:09,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:27:09,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:09,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 08:27:09,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:09,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:09,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:09,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:27:09,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:27:09,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 08:27:09,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:09,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:27:09,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:27:09,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:27:09,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:09,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 08:27:09,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:09,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:09,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:09,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 08:27:09,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:27:09,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 08:27:09,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:09,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:27:09,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:27:09,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:27:09,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:09,050 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-28 08:27:09,051 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2132616746] [2020-10-28 08:27:09,051 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 08:27:09,051 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-28 08:27:09,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614152156] [2020-10-28 08:27:09,052 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-28 08:27:09,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 08:27:09,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-28 08:27:09,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-10-28 08:27:09,053 INFO L87 Difference]: Start difference. First operand 1876 states and 2321 transitions. Second operand 14 states. [2020-10-28 08:27:09,451 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-10-28 08:27:10,003 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2020-10-28 08:27:10,501 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-28 08:27:11,155 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-10-28 08:27:11,623 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-10-28 08:27:12,096 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-10-28 08:27:12,587 WARN L193 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-10-28 08:27:13,036 WARN L193 SmtUtils]: Spent 421.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-10-28 08:27:13,511 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-10-28 08:27:14,143 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-10-28 08:27:14,760 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-28 08:27:15,252 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2020-10-28 08:27:16,011 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-28 08:27:23,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 08:27:23,584 INFO L93 Difference]: Finished difference Result 4654 states and 5868 transitions. [2020-10-28 08:27:23,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-28 08:27:23,585 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 95 [2020-10-28 08:27:23,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 08:27:23,599 INFO L225 Difference]: With dead ends: 4654 [2020-10-28 08:27:23,599 INFO L226 Difference]: Without dead ends: 2820 [2020-10-28 08:27:23,605 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=318, Invalid=738, Unknown=0, NotChecked=0, Total=1056 [2020-10-28 08:27:23,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2820 states. [2020-10-28 08:27:23,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2820 to 1876. [2020-10-28 08:27:23,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1876 states. [2020-10-28 08:27:23,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1876 states to 1876 states and 2321 transitions. [2020-10-28 08:27:23,926 INFO L78 Accepts]: Start accepts. Automaton has 1876 states and 2321 transitions. Word has length 95 [2020-10-28 08:27:23,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 08:27:23,927 INFO L481 AbstractCegarLoop]: Abstraction has 1876 states and 2321 transitions. [2020-10-28 08:27:23,927 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-28 08:27:23,927 INFO L276 IsEmpty]: Start isEmpty. Operand 1876 states and 2321 transitions. [2020-10-28 08:27:23,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-28 08:27:23,931 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 08:27:23,932 INFO L422 BasicCegarLoop]: trace histogram [4, 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] [2020-10-28 08:27:23,932 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-28 08:27:23,932 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 08:27:23,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 08:27:23,932 INFO L82 PathProgramCache]: Analyzing trace with hash 1622051238, now seen corresponding path program 1 times [2020-10-28 08:27:23,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 08:27:23,933 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2074899537] [2020-10-28 08:27:23,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 08:27:23,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:23,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:24,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:24,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:24,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:26,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:26,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-28 08:27:26,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 08:27:26,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2570 [2020-10-28 08:27:26,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:26,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 08:27:26,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-10-28 08:27:26,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-28 08:27:26,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:26,947 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 08:27:26,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 08:27:26,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:26,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:26,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:26,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 08:27:26,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:27:26,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 08:27:26,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:26,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:27:26,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:27:26,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:27:26,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:26,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 08:27:26,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:26,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:27,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:27,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:27:27,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:27:27,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 08:27:27,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:27,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:27:27,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:27:27,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:27:27,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:27,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 08:27:27,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:27,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:27,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:27,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 08:27:27,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:27:27,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 08:27:27,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:27,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:27:27,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:27:27,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:27:27,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:27,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 08:27:27,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:27,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:27,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:27,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 08:27:27,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:27:27,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 08:27:27,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:27,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:27:27,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:27:27,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:27:27,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:27,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 08:27:27,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:27,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:27,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:27,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 08:27:27,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:27:27,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 08:27:27,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:27,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 08:27:27,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:27:27,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 08:27:27,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:27,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-28 08:27:27,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:27,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:27,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:27,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 08:27:27,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:27:27,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 08:27:27,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:27,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 08:27:27,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:27:27,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 08:27:27,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:27,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-28 08:27:27,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:27,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:27,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:27,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 08:27:27,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:27:27,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 08:27:27,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:27,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:27:27,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 08:27:27,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:27:27,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:27,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 08:27:27,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:27,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:27,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:27,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:27:27,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:27:27,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 08:27:27,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:27,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:27:27,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:27:27,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:27:27,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:27,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-28 08:27:27,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:27,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:27,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:27,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-28 08:27:27,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:27:27,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 08:27:27,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:27,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:27:27,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-28 08:27:27,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:27:27,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:27,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 08:27:27,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:27,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:27,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:27,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 08:27:27,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:27:27,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 08:27:27,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:27,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:27:27,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:27:27,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:27:27,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:27,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 08:27:27,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:27,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:27,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:27,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:27:27,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:27:27,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 08:27:27,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:27,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:27:27,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:27:27,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:27:27,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:27,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 08:27:27,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:27,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:27,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:27,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 08:27:27,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:27:27,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 08:27:27,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:27,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:27:27,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:27:27,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:27:27,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:27,339 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-28 08:27:27,339 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2074899537] [2020-10-28 08:27:27,339 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 08:27:27,339 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-28 08:27:27,340 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597477697] [2020-10-28 08:27:27,340 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-28 08:27:27,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 08:27:27,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-28 08:27:27,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2020-10-28 08:27:27,341 INFO L87 Difference]: Start difference. First operand 1876 states and 2321 transitions. Second operand 15 states. [2020-10-28 08:27:27,746 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-10-28 08:27:28,292 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2020-10-28 08:27:28,785 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-28 08:27:29,625 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-10-28 08:27:30,129 WARN L193 SmtUtils]: Spent 432.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-10-28 08:27:30,636 WARN L193 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-10-28 08:27:31,165 WARN L193 SmtUtils]: Spent 443.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-10-28 08:27:31,606 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2020-10-28 08:27:32,121 WARN L193 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-10-28 08:27:32,863 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-10-28 08:27:33,470 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-10-28 08:27:33,991 WARN L193 SmtUtils]: Spent 424.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-10-28 08:27:34,501 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-10-28 08:27:35,238 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-28 08:27:44,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 08:27:44,591 INFO L93 Difference]: Finished difference Result 4666 states and 5876 transitions. [2020-10-28 08:27:44,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-28 08:27:44,592 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 96 [2020-10-28 08:27:44,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 08:27:44,605 INFO L225 Difference]: With dead ends: 4666 [2020-10-28 08:27:44,605 INFO L226 Difference]: Without dead ends: 2832 [2020-10-28 08:27:44,610 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=353, Invalid=837, Unknown=0, NotChecked=0, Total=1190 [2020-10-28 08:27:44,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2832 states. [2020-10-28 08:27:44,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2832 to 1876. [2020-10-28 08:27:44,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1876 states. [2020-10-28 08:27:44,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1876 states to 1876 states and 2317 transitions. [2020-10-28 08:27:44,907 INFO L78 Accepts]: Start accepts. Automaton has 1876 states and 2317 transitions. Word has length 96 [2020-10-28 08:27:44,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 08:27:44,908 INFO L481 AbstractCegarLoop]: Abstraction has 1876 states and 2317 transitions. [2020-10-28 08:27:44,908 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-28 08:27:44,908 INFO L276 IsEmpty]: Start isEmpty. Operand 1876 states and 2317 transitions. [2020-10-28 08:27:44,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-28 08:27:44,912 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 08:27:44,913 INFO L422 BasicCegarLoop]: trace histogram [4, 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] [2020-10-28 08:27:44,913 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-28 08:27:44,913 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 08:27:44,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 08:27:44,914 INFO L82 PathProgramCache]: Analyzing trace with hash -1645733732, now seen corresponding path program 1 times [2020-10-28 08:27:44,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 08:27:44,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [321684313] [2020-10-28 08:27:44,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 08:27:44,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:44,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:45,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:45,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-10-28 08:27:45,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:27:45,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-10-28 08:27:45,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:45,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 08:27:45,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-10-28 08:27:45,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-28 08:27:45,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:45,503 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 08:27:45,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 08:27:45,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:45,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:45,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:45,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 08:27:45,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:27:45,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-28 08:27:45,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:45,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:27:45,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:27:45,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:27:45,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:45,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 08:27:45,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:45,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:45,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:45,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:27:45,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:27:45,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 08:27:45,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:45,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:27:45,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:27:45,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:27:45,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:45,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 08:27:45,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:45,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:45,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:45,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 08:27:45,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:27:45,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 08:27:45,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:45,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:27:45,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:27:45,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:27:45,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:45,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 08:27:45,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:45,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:45,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:45,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 08:27:45,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:27:45,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 08:27:45,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:45,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:27:45,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:27:45,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:27:45,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:45,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-28 08:27:45,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:45,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:45,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:45,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 08:27:45,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:27:45,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 08:27:45,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:45,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:27:45,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:27:45,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:27:45,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:45,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 08:27:45,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:45,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:45,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:45,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 08:27:45,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:27:45,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 08:27:45,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:45,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:27:45,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:27:45,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:27:45,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:45,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-28 08:27:45,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:45,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:45,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:45,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 08:27:45,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:27:45,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 08:27:45,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:45,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 08:27:45,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:27:45,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 08:27:45,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:45,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 08:27:45,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:45,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:45,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:45,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:27:45,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:27:45,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 08:27:45,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:45,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:27:45,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:27:45,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:27:45,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:45,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-28 08:27:45,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:45,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:45,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:45,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 08:27:45,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:27:45,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 08:27:45,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:45,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:27:45,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 08:27:45,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:27:45,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:45,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 08:27:45,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:45,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:45,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:45,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:27:45,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:27:45,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 08:27:45,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:45,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:27:45,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:27:45,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:27:45,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:45,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-28 08:27:45,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:45,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:45,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:45,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-28 08:27:45,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:27:45,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 08:27:45,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:45,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:27:45,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-28 08:27:45,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:27:45,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:45,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 08:27:45,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:45,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:45,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:45,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 08:27:45,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:27:45,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 08:27:45,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:45,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:27:45,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:27:45,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:27:45,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:45,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 08:27:45,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:45,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:45,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:45,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:27:45,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:27:45,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 08:27:45,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:45,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:27:45,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:27:45,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:27:45,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:45,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 08:27:45,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:45,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:45,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:45,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 08:27:45,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:27:45,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 08:27:45,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:45,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:27:45,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:27:45,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:27:45,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:45,811 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-10-28 08:27:45,812 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [321684313] [2020-10-28 08:27:45,812 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 08:27:45,812 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 08:27:45,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025640860] [2020-10-28 08:27:45,813 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 08:27:45,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 08:27:45,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 08:27:45,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-28 08:27:45,814 INFO L87 Difference]: Start difference. First operand 1876 states and 2317 transitions. Second operand 8 states. [2020-10-28 08:27:46,216 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-10-28 08:27:46,701 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2020-10-28 08:27:47,144 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-28 08:27:53,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 08:27:53,483 INFO L93 Difference]: Finished difference Result 4586 states and 5802 transitions. [2020-10-28 08:27:53,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 08:27:53,484 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 105 [2020-10-28 08:27:53,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 08:27:53,498 INFO L225 Difference]: With dead ends: 4586 [2020-10-28 08:27:53,498 INFO L226 Difference]: Without dead ends: 2752 [2020-10-28 08:27:53,502 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2020-10-28 08:27:53,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2752 states. [2020-10-28 08:27:53,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2752 to 2352. [2020-10-28 08:27:53,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2352 states. [2020-10-28 08:27:53,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2352 states to 2352 states and 2928 transitions. [2020-10-28 08:27:53,885 INFO L78 Accepts]: Start accepts. Automaton has 2352 states and 2928 transitions. Word has length 105 [2020-10-28 08:27:53,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 08:27:53,885 INFO L481 AbstractCegarLoop]: Abstraction has 2352 states and 2928 transitions. [2020-10-28 08:27:53,886 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 08:27:53,886 INFO L276 IsEmpty]: Start isEmpty. Operand 2352 states and 2928 transitions. [2020-10-28 08:27:53,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-28 08:27:53,890 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 08:27:53,890 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 08:27:53,890 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-28 08:27:53,890 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 08:27:53,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 08:27:53,891 INFO L82 PathProgramCache]: Analyzing trace with hash 853894832, now seen corresponding path program 1 times [2020-10-28 08:27:53,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 08:27:53,891 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1658966871] [2020-10-28 08:27:53,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 08:27:53,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:53,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:54,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:54,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:55,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:55,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:55,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:56,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:58,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:58,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-28 08:27:58,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-28 08:27:58,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-28 08:27:58,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:58,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 08:27:58,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-28 08:27:58,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-28 08:27:58,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:59,432 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 08:27:59,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 08:27:59,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:59,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:59,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:59,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 08:27:59,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:27:59,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 08:27:59,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:59,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:27:59,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:27:59,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:27:59,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:59,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 08:27:59,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:59,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:59,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:59,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:27:59,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:27:59,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 08:27:59,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:59,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:27:59,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:27:59,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:27:59,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:59,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 08:27:59,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:59,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:59,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:59,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 08:27:59,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:27:59,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 08:27:59,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:59,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:27:59,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:27:59,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:27:59,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:59,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 08:27:59,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:59,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:59,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:59,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 08:27:59,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:27:59,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 08:27:59,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:59,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:27:59,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:27:59,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:27:59,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:59,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 08:27:59,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:59,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:59,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:59,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 08:27:59,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:27:59,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 08:27:59,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:59,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:27:59,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:27:59,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:27:59,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:59,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 08:27:59,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:59,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:59,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:59,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 08:27:59,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:27:59,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 08:27:59,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:59,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:27:59,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:27:59,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:27:59,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:59,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-28 08:27:59,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:59,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:59,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:59,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-28 08:27:59,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:27:59,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 08:27:59,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:59,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 08:27:59,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:27:59,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-28 08:27:59,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:59,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 08:27:59,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:59,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:59,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:59,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 08:27:59,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:27:59,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 08:27:59,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:59,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 08:27:59,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:27:59,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 08:27:59,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:59,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-28 08:27:59,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:59,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:59,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:59,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 08:27:59,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:27:59,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 08:27:59,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:59,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:27:59,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 08:27:59,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:27:59,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:59,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 08:27:59,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:59,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:59,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:59,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:27:59,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:27:59,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 08:27:59,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:59,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:27:59,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:27:59,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:27:59,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:59,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-28 08:27:59,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:59,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:59,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:59,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-28 08:27:59,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:27:59,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 08:27:59,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:59,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:27:59,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-28 08:27:59,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:27:59,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:59,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 08:27:59,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:59,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:59,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:59,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 08:27:59,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:27:59,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 08:27:59,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:59,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:27:59,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:27:59,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:27:59,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:59,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 08:27:59,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:59,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:59,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:59,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 08:27:59,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:27:59,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 08:27:59,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:59,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:27:59,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:27:59,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:27:59,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:59,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 08:27:59,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:27:59,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:27:59,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:27:59,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 08:27:59,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:27:59,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 08:27:59,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 08:27:59,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:27:59,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:27:59,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:27:59,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:27:59,789 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 22 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-10-28 08:27:59,789 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1658966871] [2020-10-28 08:27:59,789 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 08:27:59,789 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-28 08:27:59,789 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322659328] [2020-10-28 08:27:59,789 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-28 08:27:59,790 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 08:27:59,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-28 08:27:59,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2020-10-28 08:27:59,790 INFO L87 Difference]: Start difference. First operand 2352 states and 2928 transitions. Second operand 13 states. [2020-10-28 08:28:00,195 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-10-28 08:28:00,715 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-28 08:28:01,190 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-28 08:28:01,903 WARN L193 SmtUtils]: Spent 466.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-10-28 08:28:02,419 WARN L193 SmtUtils]: Spent 464.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-10-28 08:28:02,974 WARN L193 SmtUtils]: Spent 431.00 ms on a formula simplification that was a NOOP. DAG size: 229 [2020-10-28 08:28:03,408 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-10-28 08:28:03,891 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-10-28 08:28:04,358 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-10-28 08:28:05,200 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-10-28 08:28:05,731 WARN L193 SmtUtils]: Spent 424.00 ms on a formula simplification that was a NOOP. DAG size: 224 [2020-10-28 08:28:06,251 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 218