/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block 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=BIGGEST --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 -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 0.1.25-adbd35c [2020-10-13 04:14:53,670 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 04:14:53,673 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 04:14:53,697 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 04:14:53,697 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 04:14:53,698 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 04:14:53,700 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 04:14:53,701 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 04:14:53,703 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 04:14:53,704 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 04:14:53,705 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 04:14:53,706 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 04:14:53,706 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 04:14:53,707 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 04:14:53,708 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 04:14:53,709 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 04:14:53,710 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 04:14:53,711 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 04:14:53,712 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 04:14:53,714 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 04:14:53,715 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 04:14:53,716 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 04:14:53,717 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 04:14:53,718 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 04:14:53,720 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 04:14:53,721 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 04:14:53,721 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 04:14:53,722 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 04:14:53,722 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 04:14:53,723 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 04:14:53,723 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 04:14:53,724 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 04:14:53,725 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 04:14:53,725 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 04:14:53,726 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 04:14:53,727 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 04:14:53,727 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 04:14:53,728 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 04:14:53,728 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 04:14:53,729 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 04:14:53,729 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 04:14:53,730 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 [2020-10-13 04:14:53,752 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 04:14:53,753 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 04:14:53,754 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 04:14:53,754 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 04:14:53,754 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 04:14:53,755 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 04:14:53,755 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 04:14:53,755 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 04:14:53,755 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 04:14:53,756 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 04:14:53,756 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 04:14:53,756 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 04:14:53,756 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 04:14:53,756 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 04:14:53,757 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 04:14:53,757 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 04:14:53,757 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 04:14:53,757 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 04:14:53,757 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 04:14:53,757 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 04:14:53,758 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 04:14:53,758 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 04:14:53,758 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 04:14:53,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 04:14:53,758 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 04:14:53,759 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 04:14:53,759 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-13 04:14:53,759 INFO L138 SettingsManager]: * To the following directory=dump/ 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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 04:14:54,106 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 04:14:54,127 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 04:14:54,132 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 04:14:54,134 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 04:14:54,135 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 04:14:54,136 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i [2020-10-13 04:14:54,215 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/94a84b781/03c8a0fe304448b1907a481d8f9a5af8/FLAG7506bc08f [2020-10-13 04:14:54,916 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 04:14:54,917 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i [2020-10-13 04:14:54,943 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/94a84b781/03c8a0fe304448b1907a481d8f9a5af8/FLAG7506bc08f [2020-10-13 04:14:55,030 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/94a84b781/03c8a0fe304448b1907a481d8f9a5af8 [2020-10-13 04:14:55,040 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 04:14:55,042 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 04:14:55,043 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 04:14:55,044 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 04:14:55,047 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 04:14:55,048 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:14:55" (1/1) ... [2020-10-13 04:14:55,051 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e1c28a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:14:55, skipping insertion in model container [2020-10-13 04:14:55,051 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:14:55" (1/1) ... [2020-10-13 04:14:55,059 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 04:14:55,120 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 04:14:56,104 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 04:14:56,128 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 04:14:56,260 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 04:14:56,343 INFO L208 MainTranslator]: Completed translation [2020-10-13 04:14:56,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:14:56 WrapperNode [2020-10-13 04:14:56,344 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 04:14:56,345 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 04:14:56,345 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 04:14:56,345 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 04:14:56,361 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:14:56" (1/1) ... [2020-10-13 04:14:56,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:14:56" (1/1) ... [2020-10-13 04:14:56,396 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:14:56" (1/1) ... [2020-10-13 04:14:56,397 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:14:56" (1/1) ... [2020-10-13 04:14:56,478 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:14:56" (1/1) ... [2020-10-13 04:14:56,502 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:14:56" (1/1) ... [2020-10-13 04:14:56,524 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:14:56" (1/1) ... [2020-10-13 04:14:56,547 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 04:14:56,548 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 04:14:56,548 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 04:14:56,549 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 04:14:56,552 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:14:56" (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 [2020-10-13 04:14:56,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 04:14:56,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 04:14:56,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~VOID [2020-10-13 04:14:56,635 INFO L138 BoogieDeclarations]: Found implementation of procedure outer_sync [2020-10-13 04:14:56,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_9 [2020-10-13 04:14:56,636 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_name [2020-10-13 04:14:56,637 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 04:14:56,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-13 04:14:56,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-13 04:14:56,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-13 04:14:56,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-13 04:14:56,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-13 04:14:56,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-13 04:14:56,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-13 04:14:56,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-13 04:14:56,640 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2020-10-13 04:14:56,640 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq_wake [2020-10-13 04:14:56,642 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq_wake [2020-10-13 04:14:56,642 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2020-10-13 04:14:56,643 INFO L138 BoogieDeclarations]: Found implementation of procedure device_may_wakeup [2020-10-13 04:14:56,643 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2020-10-13 04:14:56,643 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2020-10-13 04:14:56,643 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2020-10-13 04:14:56,643 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_check_busy [2020-10-13 04:14:56,644 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_wait_while_busy [2020-10-13 04:14:56,644 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_read_time [2020-10-13 04:14:56,644 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_set_time [2020-10-13 04:14:56,644 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_read_alarm [2020-10-13 04:14:56,644 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_alarm_irq_enable [2020-10-13 04:14:56,644 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_set_alarm [2020-10-13 04:14:56,645 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_proc [2020-10-13 04:14:56,645 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_irq_handler [2020-10-13 04:14:56,645 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_probe [2020-10-13 04:14:56,645 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_remove [2020-10-13 04:14:56,645 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_suspend [2020-10-13 04:14:56,645 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_resume [2020-10-13 04:14:56,646 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_shutdown [2020-10-13 04:14:56,646 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_init [2020-10-13 04:14:56,646 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_exit [2020-10-13 04:14:56,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2020-10-13 04:14:56,647 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2020-10-13 04:14:56,647 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2020-10-13 04:14:56,647 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_interrupt_1 [2020-10-13 04:14:56,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_rtc_class_ops_3 [2020-10-13 04:14:56,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_platform_driver_2 [2020-10-13 04:14:56,647 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2020-10-13 04:14:56,648 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 04:14:56,648 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2020-10-13 04:14:56,648 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2020-10-13 04:14:56,648 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2020-10-13 04:14:56,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kzalloc_22 [2020-10-13 04:14:56,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_rtc_device_register_23 [2020-10-13 04:14:56,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_24 [2020-10-13 04:14:56,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_rtc_device_unregister_25 [2020-10-13 04:14:56,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_26 [2020-10-13 04:14:56,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_rtc_device_unregister_27 [2020-10-13 04:14:56,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-10-13 04:14:56,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-10-13 04:14:56,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-10-13 04:14:56,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-10-13 04:14:56,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_init [2020-10-13 04:14:56,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_check [2020-10-13 04:14:56,651 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-10-13 04:14:56,651 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2020-10-13 04:14:56,651 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2020-10-13 04:14:56,651 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2020-10-13 04:14:56,652 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-10-13 04:14:56,652 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-10-13 04:14:56,652 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_notice [2020-10-13 04:14:56,652 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-10-13 04:14:56,652 INFO L138 BoogieDeclarations]: Found implementation of procedure device_init_wakeup [2020-10-13 04:14:56,653 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2020-10-13 04:14:56,653 INFO L138 BoogieDeclarations]: Found implementation of procedure irq_set_irq_wake [2020-10-13 04:14:56,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-13 04:14:56,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-13 04:14:56,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_2 [2020-10-13 04:14:56,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_3 [2020-10-13 04:14:56,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_3 [2020-10-13 04:14:56,655 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_probe [2020-10-13 04:14:56,655 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2020-10-13 04:14:56,655 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_irq [2020-10-13 04:14:56,655 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2020-10-13 04:14:56,656 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2020-10-13 04:14:56,656 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_device_register [2020-10-13 04:14:56,656 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_device_unregister [2020-10-13 04:14:56,657 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_time_to_tm [2020-10-13 04:14:56,657 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_tm_to_time [2020-10-13 04:14:56,657 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_update_irq [2020-10-13 04:14:56,657 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_valid_tm [2020-10-13 04:14:56,657 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_printf [2020-10-13 04:14:56,657 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_ioremap [2020-10-13 04:14:56,657 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_iounmap [2020-10-13 04:14:56,658 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-13 04:14:56,658 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-13 04:14:56,658 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-13 04:14:56,658 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 04:14:56,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-13 04:14:56,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-10-13 04:14:56,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-10-13 04:14:56,659 INFO L130 BoogieDeclarations]: Found specification of procedure outer_sync [2020-10-13 04:14:56,659 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~VOID [2020-10-13 04:14:56,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 04:14:56,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-13 04:14:56,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-13 04:14:56,659 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-13 04:14:56,660 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2020-10-13 04:14:56,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_9 [2020-10-13 04:14:56,660 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2020-10-13 04:14:56,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_check [2020-10-13 04:14:56,660 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-13 04:14:56,660 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_name [2020-10-13 04:14:56,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kzalloc_22 [2020-10-13 04:14:56,661 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 04:14:56,661 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-13 04:14:56,661 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 04:14:56,661 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-13 04:14:56,661 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-13 04:14:56,665 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 04:14:56,665 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 04:14:56,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 04:14:56,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-13 04:14:56,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-13 04:14:56,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-13 04:14:56,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-13 04:14:56,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-13 04:14:56,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-13 04:14:56,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2020-10-13 04:14:56,668 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2020-10-13 04:14:56,668 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2020-10-13 04:14:56,671 INFO L130 BoogieDeclarations]: Found specification of procedure choose_interrupt_1 [2020-10-13 04:14:56,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_rtc_class_ops_3 [2020-10-13 04:14:56,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_platform_driver_2 [2020-10-13 04:14:56,672 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2020-10-13 04:14:56,672 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_ioremap [2020-10-13 04:14:56,672 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_iounmap [2020-10-13 04:14:56,672 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-10-13 04:14:56,673 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2020-10-13 04:14:56,674 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2020-10-13 04:14:56,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_24 [2020-10-13 04:14:56,674 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2020-10-13 04:14:56,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_26 [2020-10-13 04:14:56,674 INFO L130 BoogieDeclarations]: Found specification of procedure irq_set_irq_wake [2020-10-13 04:14:56,674 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq_wake [2020-10-13 04:14:56,674 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq_wake [2020-10-13 04:14:56,675 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_valid_tm [2020-10-13 04:14:56,681 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_tm_to_time [2020-10-13 04:14:56,681 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_time_to_tm [2020-10-13 04:14:56,682 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2020-10-13 04:14:56,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 04:14:56,682 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2020-10-13 04:14:56,682 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2020-10-13 04:14:56,682 INFO L130 BoogieDeclarations]: Found specification of procedure device_may_wakeup [2020-10-13 04:14:56,682 INFO L130 BoogieDeclarations]: Found specification of procedure device_init_wakeup [2020-10-13 04:14:56,683 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2020-10-13 04:14:56,683 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-10-13 04:14:56,683 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-10-13 04:14:56,683 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-10-13 04:14:56,683 INFO L130 BoogieDeclarations]: Found specification of procedure dev_notice [2020-10-13 04:14:56,683 INFO L130 BoogieDeclarations]: Found specification of procedure seq_printf [2020-10-13 04:14:56,683 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2020-10-13 04:14:56,683 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2020-10-13 04:14:56,684 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_device_register [2020-10-13 04:14:56,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_rtc_device_register_23 [2020-10-13 04:14:56,684 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_device_unregister [2020-10-13 04:14:56,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_rtc_device_unregister_25 [2020-10-13 04:14:56,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_rtc_device_unregister_27 [2020-10-13 04:14:56,684 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_update_irq [2020-10-13 04:14:56,684 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2020-10-13 04:14:56,685 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_irq [2020-10-13 04:14:56,685 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2020-10-13 04:14:56,685 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_probe [2020-10-13 04:14:56,685 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2020-10-13 04:14:56,685 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2020-10-13 04:14:56,685 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_check_busy [2020-10-13 04:14:56,685 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_wait_while_busy [2020-10-13 04:14:56,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 04:14:56,686 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_read_time [2020-10-13 04:14:56,686 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_set_time [2020-10-13 04:14:56,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 04:14:56,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 04:14:56,686 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_read_alarm [2020-10-13 04:14:56,686 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_alarm_irq_enable [2020-10-13 04:14:56,687 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_set_alarm [2020-10-13 04:14:56,687 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_proc [2020-10-13 04:14:56,687 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_irq_handler [2020-10-13 04:14:56,687 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_probe [2020-10-13 04:14:56,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 04:14:56,687 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_remove [2020-10-13 04:14:56,687 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_suspend [2020-10-13 04:14:56,688 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_resume [2020-10-13 04:14:56,688 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_shutdown [2020-10-13 04:14:56,688 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_init [2020-10-13 04:14:56,688 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_exit [2020-10-13 04:14:56,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-13 04:14:56,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-13 04:14:56,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_2 [2020-10-13 04:14:56,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_3 [2020-10-13 04:14:56,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_3 [2020-10-13 04:14:56,689 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 04:14:56,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-13 04:14:56,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-10-13 04:14:56,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-10-13 04:14:56,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_init [2020-10-13 04:14:56,690 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 04:14:56,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 04:14:56,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-13 04:14:56,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-13 04:14:56,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 04:14:57,268 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-13 04:15:01,525 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 04:15:01,525 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-13 04:15:01,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:15:01 BoogieIcfgContainer [2020-10-13 04:15:01,535 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 04:15:01,536 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 04:15:01,536 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 04:15:01,543 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 04:15:01,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 04:14:55" (1/3) ... [2020-10-13 04:15:01,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e6ad3cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 04:15:01, skipping insertion in model container [2020-10-13 04:15:01,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:14:56" (2/3) ... [2020-10-13 04:15:01,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e6ad3cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 04:15:01, skipping insertion in model container [2020-10-13 04:15:01,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:15:01" (3/3) ... [2020-10-13 04:15:01,546 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i [2020-10-13 04:15:01,557 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 04:15:01,566 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 04:15:01,582 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 04:15:01,613 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 04:15:01,613 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 04:15:01,613 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 04:15:01,613 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 04:15:01,613 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 04:15:01,614 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 04:15:01,614 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 04:15:01,614 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 04:15:01,651 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states. [2020-10-13 04:15:01,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-13 04:15:01,667 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 04:15:01,668 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] [2020-10-13 04:15:01,669 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 04:15:01,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 04:15:01,679 INFO L82 PathProgramCache]: Analyzing trace with hash 729429547, now seen corresponding path program 1 times [2020-10-13 04:15:01,692 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 04:15:01,692 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1761165931] [2020-10-13 04:15:01,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 04:15:02,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:15:02,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:02,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:02,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:03,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:15:03,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-13 04:15:03,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 04:15:03,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1014 [2020-10-13 04:15:03,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:15:03,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 04:15:03,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-13 04:15:03,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 04:15:03,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 04:15:03,594 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-13 04:15:03,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 04:15:03,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:15:03,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:03,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:15:03,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 04:15:03,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:15:03,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-13 04:15:03,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:15:03,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:15:03,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:15:03,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:15:03,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:15:03,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 04:15:03,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:15:03,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:03,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:15:03,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:15:03,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:15:03,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 04:15:03,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:15:03,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:15:03,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:15:03,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:15:03,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:15:03,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 04:15:03,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:15:03,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:03,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:15:03,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 04:15:03,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:15:03,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 04:15:03,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:15:03,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:15:03,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:15:03,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:15:03,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:15:03,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 04:15:03,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:15:03,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:03,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:15:03,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:15:03,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:15:03,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 04:15:03,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:15:03,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 04:15:03,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 04:15:03,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 04:15:03,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:15:03,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-13 04:15:03,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:15:03,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:03,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:15:03,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 04:15:03,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:15:03,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 04:15:03,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:15:03,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:15:03,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 04:15:03,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:15:03,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:15:03,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:15:03,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:15:03,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:03,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:15:03,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:15:03,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:15:03,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 04:15:03,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:15:03,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:15:03,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:15:03,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:15:03,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:15:03,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 04:15:03,895 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1761165931] [2020-10-13 04:15:03,896 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 04:15:03,897 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 04:15:03,897 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708195148] [2020-10-13 04:15:03,903 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 04:15:03,903 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 04:15:03,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 04:15:03,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-13 04:15:03,921 INFO L87 Difference]: Start difference. First operand 646 states. Second operand 8 states. [2020-10-13 04:15:04,291 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-13 04:15:04,977 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-13 04:15:05,359 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-13 04:15:11,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 04:15:11,864 INFO L93 Difference]: Finished difference Result 1138 states and 1551 transitions. [2020-10-13 04:15:11,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 04:15:11,866 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 49 [2020-10-13 04:15:11,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 04:15:11,891 INFO L225 Difference]: With dead ends: 1138 [2020-10-13 04:15:11,891 INFO L226 Difference]: Without dead ends: 616 [2020-10-13 04:15:11,902 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-10-13 04:15:11,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2020-10-13 04:15:12,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 480. [2020-10-13 04:15:12,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 480 states. [2020-10-13 04:15:12,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 604 transitions. [2020-10-13 04:15:12,052 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 604 transitions. Word has length 49 [2020-10-13 04:15:12,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 04:15:12,053 INFO L479 AbstractCegarLoop]: Abstraction has 480 states and 604 transitions. [2020-10-13 04:15:12,053 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 04:15:12,053 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 604 transitions. [2020-10-13 04:15:12,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-13 04:15:12,059 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 04:15:12,059 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] [2020-10-13 04:15:12,059 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 04:15:12,060 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 04:15:12,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 04:15:12,060 INFO L82 PathProgramCache]: Analyzing trace with hash 1624091025, now seen corresponding path program 1 times [2020-10-13 04:15:12,060 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 04:15:12,061 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [388723699] [2020-10-13 04:15:12,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 04:15:12,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:15:12,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:12,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:12,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:13,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:15:13,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-13 04:15:13,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 04:15:13,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1103 [2020-10-13 04:15:13,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:15:13,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 04:15:13,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-13 04:15:13,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 04:15:13,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:15:13,526 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-13 04:15:13,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 04:15:13,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:15:13,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:13,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:15:13,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 04:15:13,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:15:13,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 04:15:13,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:15:13,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:15:13,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:15:13,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:15:13,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:15:13,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 04:15:13,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:15:13,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:13,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:15:13,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:15:13,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:15:13,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 04:15:13,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:15:13,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:15:13,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:15:13,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:15:13,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:15:13,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 04:15:13,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:15:13,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:13,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:15:13,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 04:15:13,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:15:13,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 04:15:13,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:15:13,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:15:13,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:15:13,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:15:13,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:15:13,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 04:15:13,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:15:13,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:13,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:15:13,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 04:15:13,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:15:13,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-13 04:15:13,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:15:13,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 04:15:13,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 04:15:13,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 04:15:13,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:15:13,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 04:15:13,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:15:13,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:13,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:15:13,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 04:15:13,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:15:13,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 04:15:13,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:15:13,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:15:13,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 04:15:13,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:15:13,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:15:13,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:15:13,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:15:13,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:13,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:15:13,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:15:13,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:15:13,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 04:15:13,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:15:13,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:15:13,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:15:13,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:15:13,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:15:13,807 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 04:15:13,807 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [388723699] [2020-10-13 04:15:13,808 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 04:15:13,808 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-13 04:15:13,808 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105611684] [2020-10-13 04:15:13,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 04:15:13,810 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 04:15:13,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 04:15:13,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-13 04:15:13,811 INFO L87 Difference]: Start difference. First operand 480 states and 604 transitions. Second operand 9 states. [2020-10-13 04:15:14,123 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-13 04:15:14,621 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-13 04:15:14,931 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-13 04:15:15,261 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-10-13 04:15:19,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 04:15:19,923 INFO L93 Difference]: Finished difference Result 1082 states and 1406 transitions. [2020-10-13 04:15:19,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 04:15:19,923 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 50 [2020-10-13 04:15:19,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 04:15:19,931 INFO L225 Difference]: With dead ends: 1082 [2020-10-13 04:15:19,932 INFO L226 Difference]: Without dead ends: 617 [2020-10-13 04:15:19,935 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-10-13 04:15:19,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2020-10-13 04:15:20,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 481. [2020-10-13 04:15:20,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2020-10-13 04:15:20,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 605 transitions. [2020-10-13 04:15:20,028 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 605 transitions. Word has length 50 [2020-10-13 04:15:20,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 04:15:20,029 INFO L479 AbstractCegarLoop]: Abstraction has 481 states and 605 transitions. [2020-10-13 04:15:20,029 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 04:15:20,029 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 605 transitions. [2020-10-13 04:15:20,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-13 04:15:20,032 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 04:15:20,032 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-13 04:15:20,032 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 04:15:20,033 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 04:15:20,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 04:15:20,033 INFO L82 PathProgramCache]: Analyzing trace with hash 1763162224, now seen corresponding path program 1 times [2020-10-13 04:15:20,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 04:15:20,034 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [547809981] [2020-10-13 04:15:20,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 04:15:20,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:15:20,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:20,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:20,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:20,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:15:20,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-13 04:15:20,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 04:15:20,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 780 [2020-10-13 04:15:20,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:15:20,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 04:15:20,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-13 04:15:20,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 04:15:20,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:15:21,124 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-13 04:15:21,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 04:15:21,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:15:21,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:21,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:15:21,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 04:15:21,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:15:21,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 04:15:21,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:15:21,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:15:21,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:15:21,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:15:21,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:15:21,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 04:15:21,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:15:21,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:21,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:15:21,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:15:21,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:15:21,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 04:15:21,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:15:21,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:15:21,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:15:21,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:15:21,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:15:21,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 04:15:21,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:15:21,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:21,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:15:21,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 04:15:21,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:15:21,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 04:15:21,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:15:21,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:15:21,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:15:21,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:15:21,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:15:21,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 04:15:21,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:15:21,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:21,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:15:21,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 04:15:21,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:15:21,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-13 04:15:21,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:15:21,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 04:15:21,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 04:15:21,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 04:15:21,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:15:21,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 04:15:21,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:15:21,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:21,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:15:21,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 04:15:21,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:15:21,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 04:15:21,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:15:21,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:15:21,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 04:15:21,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:15:21,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:15:21,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:15:21,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:15:21,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:21,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:15:21,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:15:21,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:15:21,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 04:15:21,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:15:21,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:15:21,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:15:21,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:15:21,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:15:21,553 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 04:15:21,554 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [547809981] [2020-10-13 04:15:21,554 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 04:15:21,555 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-13 04:15:21,555 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646918776] [2020-10-13 04:15:21,555 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 04:15:21,556 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 04:15:21,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 04:15:21,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-13 04:15:21,557 INFO L87 Difference]: Start difference. First operand 481 states and 605 transitions. Second operand 10 states. [2020-10-13 04:15:21,851 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-13 04:15:22,327 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-13 04:15:22,635 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-13 04:15:22,941 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-13 04:15:23,270 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-10-13 04:15:27,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 04:15:27,687 INFO L93 Difference]: Finished difference Result 1083 states and 1407 transitions. [2020-10-13 04:15:27,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 04:15:27,688 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 50 [2020-10-13 04:15:27,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 04:15:27,694 INFO L225 Difference]: With dead ends: 1083 [2020-10-13 04:15:27,694 INFO L226 Difference]: Without dead ends: 618 [2020-10-13 04:15:27,696 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2020-10-13 04:15:27,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2020-10-13 04:15:27,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 482. [2020-10-13 04:15:27,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 482 states. [2020-10-13 04:15:27,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 606 transitions. [2020-10-13 04:15:27,775 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 606 transitions. Word has length 50 [2020-10-13 04:15:27,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 04:15:27,775 INFO L479 AbstractCegarLoop]: Abstraction has 482 states and 606 transitions. [2020-10-13 04:15:27,775 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 04:15:27,776 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 606 transitions. [2020-10-13 04:15:27,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-13 04:15:27,777 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 04:15:27,778 INFO L422 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 04:15:27,778 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 04:15:27,778 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 04:15:27,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 04:15:27,778 INFO L82 PathProgramCache]: Analyzing trace with hash -567103030, now seen corresponding path program 2 times [2020-10-13 04:15:27,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 04:15:27,779 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1268463292] [2020-10-13 04:15:27,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 04:15:27,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:15:27,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:27,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:27,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:28,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:15:28,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 04:15:28,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 04:15:28,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 912 [2020-10-13 04:15:28,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:15:28,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 04:15:28,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-13 04:15:28,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 04:15:28,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:15:29,039 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-13 04:15:29,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 04:15:29,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:15:29,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:29,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:15:29,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 04:15:29,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:15:29,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 04:15:29,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:15:29,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:15:29,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:15:29,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:15:29,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:15:29,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 04:15:29,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:15:29,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:29,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:15:29,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:15:29,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:15:29,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 04:15:29,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:15:29,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:15:29,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:15:29,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:15:29,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:15:29,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 04:15:29,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:15:29,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:29,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:15:29,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 04:15:29,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:15:29,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 04:15:29,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:15:29,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:15:29,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:15:29,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:15:29,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:15:29,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 04:15:29,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:15:29,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:29,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:15:29,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 04:15:29,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:15:29,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-13 04:15:29,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:15:29,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 04:15:29,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 04:15:29,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 04:15:29,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:15:29,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-13 04:15:29,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:15:29,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:29,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:15:29,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 04:15:29,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:15:29,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 04:15:29,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:15:29,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:15:29,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 04:15:29,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:15:29,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:15:29,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:15:29,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:15:29,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:29,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:15:29,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:15:29,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:15:29,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 04:15:29,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:15:29,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:15:29,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:15:29,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:15:29,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:15:29,313 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 04:15:29,313 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1268463292] [2020-10-13 04:15:29,314 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 04:15:29,314 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-13 04:15:29,314 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745520218] [2020-10-13 04:15:29,315 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 04:15:29,315 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 04:15:29,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 04:15:29,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-13 04:15:29,315 INFO L87 Difference]: Start difference. First operand 482 states and 606 transitions. Second operand 11 states. [2020-10-13 04:15:29,608 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-13 04:15:30,200 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-13 04:15:30,526 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-13 04:15:30,844 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-13 04:15:31,185 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-13 04:15:31,508 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-10-13 04:15:38,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 04:15:38,368 INFO L93 Difference]: Finished difference Result 1084 states and 1408 transitions. [2020-10-13 04:15:38,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 04:15:38,369 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 51 [2020-10-13 04:15:38,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 04:15:38,375 INFO L225 Difference]: With dead ends: 1084 [2020-10-13 04:15:38,375 INFO L226 Difference]: Without dead ends: 619 [2020-10-13 04:15:38,377 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2020-10-13 04:15:38,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2020-10-13 04:15:38,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 483. [2020-10-13 04:15:38,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 04:15:38,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 607 transitions. [2020-10-13 04:15:38,439 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 607 transitions. Word has length 51 [2020-10-13 04:15:38,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 04:15:38,439 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 607 transitions. [2020-10-13 04:15:38,439 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 04:15:38,440 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 607 transitions. [2020-10-13 04:15:38,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-13 04:15:38,441 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 04:15:38,442 INFO L422 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 04:15:38,442 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 04:15:38,442 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 04:15:38,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 04:15:38,442 INFO L82 PathProgramCache]: Analyzing trace with hash 209118128, now seen corresponding path program 3 times [2020-10-13 04:15:38,443 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 04:15:38,443 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [632753205] [2020-10-13 04:15:38,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 04:15:38,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:15:38,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:38,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:38,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:15:38,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 04:15:38,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 04:15:38,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 393 [2020-10-13 04:15:38,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:15:38,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 04:15:38,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-13 04:15:38,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 04:15:38,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:15:39,180 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-13 04:15:39,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 04:15:39,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:15:39,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:39,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:15:39,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 04:15:39,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:15:39,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 04:15:39,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:15:39,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:15:39,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:15:39,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:15:39,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:15:39,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 04:15:39,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:15:39,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:39,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:15:39,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:15:39,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:15:39,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 04:15:39,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:15:39,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:15:39,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:15:39,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:15:39,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:15:39,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 04:15:39,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:15:39,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:39,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:15:39,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 04:15:39,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:15:39,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 04:15:39,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:15:39,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:15:39,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:15:39,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:15:39,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:15:39,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 04:15:39,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:15:39,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:39,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:15:39,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 04:15:39,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:15:39,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 04:15:39,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:15:39,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:15:39,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:15:39,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:15:39,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:15:39,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-13 04:15:39,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:15:39,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:39,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:15:39,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 04:15:39,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:15:39,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 04:15:39,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:15:39,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:15:39,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 04:15:39,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:15:39,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:15:39,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:15:39,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:15:39,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:39,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:15:39,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:15:39,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:15:39,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 04:15:39,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:15:39,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:15:39,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:15:39,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:15:39,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:15:39,350 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-13 04:15:39,351 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [632753205] [2020-10-13 04:15:39,351 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 04:15:39,351 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 04:15:39,352 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94799722] [2020-10-13 04:15:39,352 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 04:15:39,352 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 04:15:39,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 04:15:39,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-13 04:15:39,353 INFO L87 Difference]: Start difference. First operand 483 states and 607 transitions. Second operand 7 states. [2020-10-13 04:15:39,638 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-13 04:15:40,024 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-13 04:15:40,378 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-13 04:15:44,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 04:15:44,627 INFO L93 Difference]: Finished difference Result 955 states and 1231 transitions. [2020-10-13 04:15:44,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 04:15:44,628 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2020-10-13 04:15:44,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 04:15:44,633 INFO L225 Difference]: With dead ends: 955 [2020-10-13 04:15:44,633 INFO L226 Difference]: Without dead ends: 493 [2020-10-13 04:15:44,635 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-10-13 04:15:44,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2020-10-13 04:15:44,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 376. [2020-10-13 04:15:44,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2020-10-13 04:15:44,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 460 transitions. [2020-10-13 04:15:44,692 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 460 transitions. Word has length 52 [2020-10-13 04:15:44,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 04:15:44,693 INFO L479 AbstractCegarLoop]: Abstraction has 376 states and 460 transitions. [2020-10-13 04:15:44,693 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 04:15:44,693 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 460 transitions. [2020-10-13 04:15:44,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-13 04:15:44,695 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 04:15:44,696 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] [2020-10-13 04:15:44,696 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 04:15:44,696 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 04:15:44,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 04:15:44,696 INFO L82 PathProgramCache]: Analyzing trace with hash 962979911, now seen corresponding path program 1 times [2020-10-13 04:15:44,697 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 04:15:44,697 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [743178520] [2020-10-13 04:15:44,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 04:15:44,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:15:44,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:45,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:46,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:15:46,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 04:15:46,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 04:15:46,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1643 [2020-10-13 04:15:46,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:15:46,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 04:15:46,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 04:15:46,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 04:15:46,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:15:46,737 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-13 04:15:46,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 04:15:46,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:15:46,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:46,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:15:46,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 04:15:46,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:15:46,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-13 04:15:46,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:15:46,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 04:15:46,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:15:46,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 04:15:46,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:15:46,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 04:15:46,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:15:46,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:46,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:15:46,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:15:46,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:15:46,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 04:15:46,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:15:46,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 04:15:46,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:15:46,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 04:15:46,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:15:46,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 04:15:46,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:15:46,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:46,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:15:46,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 04:15:46,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:15:46,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 04:15:46,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:15:46,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 04:15:46,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:15:46,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 04:15:46,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:15:46,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 04:15:46,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:15:46,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:46,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:15:46,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 04:15:46,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:15:46,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 04:15:46,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:15:46,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 04:15:46,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:15:46,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 04:15:46,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:15:46,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 04:15:46,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:15:46,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:46,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:15:46,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 04:15:46,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:15:46,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 04:15:46,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:15:46,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:15:46,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 04:15:46,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:15:46,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:15:46,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:15:46,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:15:46,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:46,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:15:46,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:15:47,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:15:47,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 04:15:47,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:15:47,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:15:47,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:15:47,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:15:47,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:15:47,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-13 04:15:47,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:15:47,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:47,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:15:47,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-13 04:15:47,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:15:47,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 04:15:47,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:15:47,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:15:47,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-13 04:15:47,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:15:47,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:15:47,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:15:47,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:15:47,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:47,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:15:47,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 04:15:47,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:15:47,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 04:15:47,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:15:47,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:15:47,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:15:47,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:15:47,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:15:47,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:15:47,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:15:47,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:47,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:15:47,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:15:47,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:15:47,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 04:15:47,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:15:47,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:15:47,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:15:47,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:15:47,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:15:47,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 04:15:47,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:15:47,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:47,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:15:47,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 04:15:47,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:15:47,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 04:15:47,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:15:47,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:15:47,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:15:47,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:15:47,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:15:47,113 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-13 04:15:47,114 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [743178520] [2020-10-13 04:15:47,114 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 04:15:47,114 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-13 04:15:47,115 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491972196] [2020-10-13 04:15:47,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 04:15:47,116 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 04:15:47,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 04:15:47,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-13 04:15:47,116 INFO L87 Difference]: Start difference. First operand 376 states and 460 transitions. Second operand 9 states. [2020-10-13 04:15:47,519 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-13 04:15:47,995 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-13 04:15:48,379 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-13 04:15:49,024 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-13 04:15:49,419 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-13 04:15:49,883 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-13 04:15:50,953 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-13 04:15:58,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 04:15:58,884 INFO L93 Difference]: Finished difference Result 1322 states and 1700 transitions. [2020-10-13 04:15:58,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 04:15:58,892 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 76 [2020-10-13 04:15:58,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 04:15:58,898 INFO L225 Difference]: With dead ends: 1322 [2020-10-13 04:15:58,899 INFO L226 Difference]: Without dead ends: 967 [2020-10-13 04:15:58,901 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2020-10-13 04:15:58,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 967 states. [2020-10-13 04:15:59,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 967 to 752. [2020-10-13 04:15:59,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 752 states. [2020-10-13 04:15:59,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 934 transitions. [2020-10-13 04:15:59,022 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 934 transitions. Word has length 76 [2020-10-13 04:15:59,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 04:15:59,023 INFO L479 AbstractCegarLoop]: Abstraction has 752 states and 934 transitions. [2020-10-13 04:15:59,023 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 04:15:59,023 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 934 transitions. [2020-10-13 04:15:59,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-13 04:15:59,026 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 04:15:59,026 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] [2020-10-13 04:15:59,026 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 04:15:59,026 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 04:15:59,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 04:15:59,027 INFO L82 PathProgramCache]: Analyzing trace with hash -2102416043, now seen corresponding path program 1 times [2020-10-13 04:15:59,027 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 04:15:59,027 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [859486455] [2020-10-13 04:15:59,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 04:15:59,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:15:59,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:59,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:15:59,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:15:59,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 04:15:59,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 04:15:59,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 831 [2020-10-13 04:15:59,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:15:59,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 04:15:59,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 04:15:59,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-13 04:15:59,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:16:00,252 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-13 04:16:00,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 04:16:00,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:00,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:00,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:00,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 04:16:00,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:00,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-13 04:16:00,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:00,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 04:16:00,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:16:00,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 04:16:00,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:00,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 04:16:00,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:00,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:00,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:00,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:16:00,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:00,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 04:16:00,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:00,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 04:16:00,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:16:00,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 04:16:00,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:00,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 04:16:00,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:00,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:00,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:00,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 04:16:00,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:00,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 04:16:00,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:00,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 04:16:00,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:16:00,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 04:16:00,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:00,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 04:16:00,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:00,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:00,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:00,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 04:16:00,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:00,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 04:16:00,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:00,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 04:16:00,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:16:00,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 04:16:00,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:00,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 04:16:00,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:00,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:00,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:00,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 04:16:00,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:00,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 04:16:00,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:00,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:16:00,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 04:16:00,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:16:00,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:00,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:16:00,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:00,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:00,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:00,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:16:00,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:00,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 04:16:00,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:00,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:16:00,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:16:00,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:16:00,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:00,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-13 04:16:00,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:00,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:00,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:00,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-13 04:16:00,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:00,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 04:16:00,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:00,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:16:00,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-13 04:16:00,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:16:00,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:00,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:16:00,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:00,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:00,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:00,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 04:16:00,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:00,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 04:16:00,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:00,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:16:00,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:16:00,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:16:00,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:16:00,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:16:00,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:00,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:00,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:00,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:16:00,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:00,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 04:16:00,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:00,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:16:00,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:16:00,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:16:00,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:00,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 04:16:00,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:00,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:00,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:00,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 04:16:00,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:00,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 04:16:00,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:00,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:16:00,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:16:00,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:16:00,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:00,563 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-13 04:16:00,563 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [859486455] [2020-10-13 04:16:00,563 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 04:16:00,564 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-13 04:16:00,564 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349501282] [2020-10-13 04:16:00,564 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 04:16:00,565 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 04:16:00,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 04:16:00,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-13 04:16:00,565 INFO L87 Difference]: Start difference. First operand 752 states and 934 transitions. Second operand 9 states. [2020-10-13 04:16:00,844 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-13 04:16:01,265 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-13 04:16:01,646 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-13 04:16:02,339 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-13 04:16:02,710 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-13 04:16:03,053 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-13 04:16:07,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 04:16:07,535 INFO L93 Difference]: Finished difference Result 1693 states and 2170 transitions. [2020-10-13 04:16:07,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 04:16:07,536 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 77 [2020-10-13 04:16:07,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 04:16:07,543 INFO L225 Difference]: With dead ends: 1693 [2020-10-13 04:16:07,543 INFO L226 Difference]: Without dead ends: 962 [2020-10-13 04:16:07,546 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2020-10-13 04:16:07,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2020-10-13 04:16:07,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 756. [2020-10-13 04:16:07,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 756 states. [2020-10-13 04:16:07,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 934 transitions. [2020-10-13 04:16:07,659 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 934 transitions. Word has length 77 [2020-10-13 04:16:07,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 04:16:07,660 INFO L479 AbstractCegarLoop]: Abstraction has 756 states and 934 transitions. [2020-10-13 04:16:07,660 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 04:16:07,660 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 934 transitions. [2020-10-13 04:16:07,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-13 04:16:07,662 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 04:16:07,663 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] [2020-10-13 04:16:07,663 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 04:16:07,663 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 04:16:07,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 04:16:07,663 INFO L82 PathProgramCache]: Analyzing trace with hash 750580412, now seen corresponding path program 1 times [2020-10-13 04:16:07,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 04:16:07,664 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [20048872] [2020-10-13 04:16:07,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 04:16:07,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:07,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:07,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:07,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:07,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-13 04:16:07,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 04:16:07,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 283 [2020-10-13 04:16:07,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:07,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 04:16:07,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-13 04:16:07,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 04:16:07,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:08,347 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-13 04:16:08,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 04:16:08,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:08,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:08,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:08,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 04:16:08,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:08,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 04:16:08,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:08,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:16:08,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:16:08,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:16:08,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:08,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 04:16:08,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:08,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:08,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:08,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:16:08,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:08,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 04:16:08,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:08,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:16:08,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:16:08,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:16:08,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:08,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 04:16:08,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:08,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:08,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:08,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 04:16:08,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:08,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 04:16:08,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:08,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:16:08,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:16:08,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:16:08,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:08,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 04:16:08,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:08,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:08,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:08,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 04:16:08,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:08,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 04:16:08,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:08,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:16:08,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:16:08,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:16:08,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:08,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-13 04:16:08,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:08,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:08,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:08,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 04:16:08,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:08,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 04:16:08,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:08,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:16:08,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 04:16:08,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:16:08,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:08,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:16:08,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:08,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:08,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:08,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:16:08,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:08,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 04:16:08,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:08,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:16:08,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:16:08,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:16:08,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:08,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-13 04:16:08,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:08,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:08,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:08,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-13 04:16:08,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:08,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 04:16:08,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:08,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:16:08,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-13 04:16:08,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:16:08,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:08,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:16:08,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:08,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:08,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:08,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 04:16:08,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:08,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 04:16:08,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:08,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:16:08,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:16:08,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:16:08,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:08,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:16:08,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:08,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:08,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:08,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:16:08,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:08,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 04:16:08,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:08,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:16:08,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:16:08,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:16:08,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:08,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 04:16:08,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:08,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:08,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:08,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 04:16:08,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:08,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 04:16:08,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:08,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:16:08,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:16:08,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:16:08,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:08,578 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-13 04:16:08,579 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [20048872] [2020-10-13 04:16:08,579 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 04:16:08,579 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 04:16:08,579 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264435402] [2020-10-13 04:16:08,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 04:16:08,580 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 04:16:08,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 04:16:08,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-13 04:16:08,581 INFO L87 Difference]: Start difference. First operand 756 states and 934 transitions. Second operand 7 states. [2020-10-13 04:16:08,894 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-13 04:16:09,284 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-13 04:16:09,631 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-13 04:16:15,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 04:16:15,359 INFO L93 Difference]: Finished difference Result 2121 states and 2709 transitions. [2020-10-13 04:16:15,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 04:16:15,361 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 74 [2020-10-13 04:16:15,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 04:16:15,372 INFO L225 Difference]: With dead ends: 2121 [2020-10-13 04:16:15,372 INFO L226 Difference]: Without dead ends: 1386 [2020-10-13 04:16:15,376 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-13 04:16:15,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1386 states. [2020-10-13 04:16:15,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1386 to 1113. [2020-10-13 04:16:15,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1113 states. [2020-10-13 04:16:15,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1113 states to 1113 states and 1382 transitions. [2020-10-13 04:16:15,674 INFO L78 Accepts]: Start accepts. Automaton has 1113 states and 1382 transitions. Word has length 74 [2020-10-13 04:16:15,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 04:16:15,675 INFO L479 AbstractCegarLoop]: Abstraction has 1113 states and 1382 transitions. [2020-10-13 04:16:15,675 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 04:16:15,675 INFO L276 IsEmpty]: Start isEmpty. Operand 1113 states and 1382 transitions. [2020-10-13 04:16:15,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-13 04:16:15,678 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 04:16:15,679 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] [2020-10-13 04:16:15,679 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 04:16:15,679 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 04:16:15,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 04:16:15,680 INFO L82 PathProgramCache]: Analyzing trace with hash 926274340, now seen corresponding path program 1 times [2020-10-13 04:16:15,680 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 04:16:15,681 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2010897552] [2020-10-13 04:16:15,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 04:16:15,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:15,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:16,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:16,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:16,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-13 04:16:16,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 04:16:16,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1049 [2020-10-13 04:16:16,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:16,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 04:16:16,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 04:16:16,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-13 04:16:16,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:17,138 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-13 04:16:17,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 04:16:17,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:17,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:17,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:17,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 04:16:17,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:17,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-13 04:16:17,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:17,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 04:16:17,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:16:17,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 04:16:17,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:17,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 04:16:17,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:17,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:17,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:17,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:16:17,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:17,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 04:16:17,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:17,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 04:16:17,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:16:17,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 04:16:17,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:17,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 04:16:17,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:17,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:17,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:17,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 04:16:17,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:17,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 04:16:17,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:17,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 04:16:17,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:16:17,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 04:16:17,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:17,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 04:16:17,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:17,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:17,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:17,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 04:16:17,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:17,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 04:16:17,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:17,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 04:16:17,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:16:17,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 04:16:17,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:17,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-13 04:16:17,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:17,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:17,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:17,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 04:16:17,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:17,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 04:16:17,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:17,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:16:17,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 04:16:17,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:16:17,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:16:17,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:16:17,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:17,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:17,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:17,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:16:17,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:17,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 04:16:17,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:17,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:16:17,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:16:17,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:16:17,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:17,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 04:16:17,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:17,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:17,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:17,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-13 04:16:17,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:17,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 04:16:17,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:17,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:16:17,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-13 04:16:17,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:16:17,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:17,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:16:17,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:17,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:17,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:17,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 04:16:17,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:17,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 04:16:17,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:17,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:16:17,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:16:17,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:16:17,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:17,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:16:17,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:17,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:17,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:17,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:16:17,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:17,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 04:16:17,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:17,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:16:17,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:16:17,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:16:17,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:17,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 04:16:17,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:17,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:17,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:17,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 04:16:17,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:17,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 04:16:17,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:17,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:16:17,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:16:17,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:16:17,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:16:17,469 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-13 04:16:17,469 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2010897552] [2020-10-13 04:16:17,470 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 04:16:17,470 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-13 04:16:17,470 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137066928] [2020-10-13 04:16:17,471 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 04:16:17,471 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 04:16:17,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 04:16:17,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-13 04:16:17,472 INFO L87 Difference]: Start difference. First operand 1113 states and 1382 transitions. Second operand 9 states. [2020-10-13 04:16:17,783 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-13 04:16:18,181 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-13 04:16:18,550 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-13 04:16:19,105 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-13 04:16:19,446 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-13 04:16:19,848 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-13 04:16:23,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 04:16:23,380 INFO L93 Difference]: Finished difference Result 2489 states and 3164 transitions. [2020-10-13 04:16:23,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 04:16:23,381 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 78 [2020-10-13 04:16:23,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 04:16:23,390 INFO L225 Difference]: With dead ends: 2489 [2020-10-13 04:16:23,390 INFO L226 Difference]: Without dead ends: 1411 [2020-10-13 04:16:23,395 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2020-10-13 04:16:23,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1411 states. [2020-10-13 04:16:23,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1411 to 1121. [2020-10-13 04:16:23,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1121 states. [2020-10-13 04:16:23,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1121 states to 1121 states and 1384 transitions. [2020-10-13 04:16:23,698 INFO L78 Accepts]: Start accepts. Automaton has 1121 states and 1384 transitions. Word has length 78 [2020-10-13 04:16:23,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 04:16:23,698 INFO L479 AbstractCegarLoop]: Abstraction has 1121 states and 1384 transitions. [2020-10-13 04:16:23,698 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 04:16:23,698 INFO L276 IsEmpty]: Start isEmpty. Operand 1121 states and 1384 transitions. [2020-10-13 04:16:23,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-13 04:16:23,701 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 04:16:23,701 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] [2020-10-13 04:16:23,701 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 04:16:23,701 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 04:16:23,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 04:16:23,702 INFO L82 PathProgramCache]: Analyzing trace with hash -401887150, now seen corresponding path program 1 times [2020-10-13 04:16:23,703 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 04:16:23,703 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1387595215] [2020-10-13 04:16:23,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 04:16:23,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:23,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:23,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:24,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:24,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 04:16:24,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 04:16:24,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 747 [2020-10-13 04:16:24,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:24,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 04:16:24,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 04:16:24,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-13 04:16:24,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:24,841 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-13 04:16:24,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 04:16:24,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:24,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:24,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:24,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 04:16:24,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:24,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-13 04:16:24,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:24,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 04:16:24,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:16:24,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 04:16:24,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:24,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 04:16:24,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:24,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:24,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:24,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:16:24,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:24,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 04:16:24,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:24,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 04:16:24,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:16:24,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 04:16:24,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:24,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 04:16:24,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:24,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:24,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:24,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 04:16:24,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:24,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 04:16:24,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:24,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 04:16:24,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:16:24,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 04:16:24,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:25,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 04:16:25,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:25,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:25,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:25,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 04:16:25,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:25,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 04:16:25,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:25,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 04:16:25,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:16:25,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 04:16:25,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:25,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 04:16:25,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:25,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:25,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:25,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 04:16:25,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:25,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 04:16:25,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:25,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:16:25,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 04:16:25,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:16:25,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:25,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:16:25,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:25,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:25,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:25,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:16:25,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:25,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 04:16:25,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:25,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:16:25,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:16:25,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:16:25,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:25,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-13 04:16:25,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:25,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:25,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:25,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-13 04:16:25,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:25,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 04:16:25,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:25,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:16:25,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-13 04:16:25,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:16:25,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:25,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:16:25,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:25,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:25,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:25,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 04:16:25,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:25,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 04:16:25,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:25,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:16:25,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:16:25,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:16:25,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:25,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:16:25,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:25,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:25,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:25,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:16:25,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:25,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 04:16:25,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:25,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:16:25,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:16:25,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:16:25,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:25,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 04:16:25,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:25,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:25,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:25,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 04:16:25,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:25,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 04:16:25,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:25,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:16:25,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:16:25,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:16:25,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:25,175 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-13 04:16:25,176 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1387595215] [2020-10-13 04:16:25,176 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 04:16:25,176 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-13 04:16:25,176 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763599366] [2020-10-13 04:16:25,177 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 04:16:25,177 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 04:16:25,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 04:16:25,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-13 04:16:25,177 INFO L87 Difference]: Start difference. First operand 1121 states and 1384 transitions. Second operand 9 states. [2020-10-13 04:16:25,508 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-13 04:16:25,952 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-13 04:16:26,325 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-13 04:16:27,049 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-13 04:16:27,474 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-13 04:16:27,866 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-13 04:16:32,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 04:16:32,162 INFO L93 Difference]: Finished difference Result 2333 states and 2937 transitions. [2020-10-13 04:16:32,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 04:16:32,163 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 79 [2020-10-13 04:16:32,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 04:16:32,170 INFO L225 Difference]: With dead ends: 2333 [2020-10-13 04:16:32,171 INFO L226 Difference]: Without dead ends: 1247 [2020-10-13 04:16:32,174 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2020-10-13 04:16:32,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1247 states. [2020-10-13 04:16:32,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1247 to 1088. [2020-10-13 04:16:32,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1088 states. [2020-10-13 04:16:32,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1350 transitions. [2020-10-13 04:16:32,377 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1350 transitions. Word has length 79 [2020-10-13 04:16:32,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 04:16:32,378 INFO L479 AbstractCegarLoop]: Abstraction has 1088 states and 1350 transitions. [2020-10-13 04:16:32,378 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 04:16:32,378 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1350 transitions. [2020-10-13 04:16:32,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-13 04:16:32,381 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 04:16:32,381 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] [2020-10-13 04:16:32,381 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 04:16:32,381 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 04:16:32,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 04:16:32,382 INFO L82 PathProgramCache]: Analyzing trace with hash -2147426517, now seen corresponding path program 1 times [2020-10-13 04:16:32,382 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 04:16:32,385 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [454635302] [2020-10-13 04:16:32,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 04:16:32,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:32,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:32,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:32,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:33,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:34,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:34,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-13 04:16:34,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 04:16:34,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2514 [2020-10-13 04:16:34,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:34,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 04:16:34,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 04:16:34,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-13 04:16:34,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:35,302 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-13 04:16:35,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 04:16:35,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:35,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:35,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:35,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 04:16:35,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:35,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-13 04:16:35,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:35,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 04:16:35,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:16:35,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 04:16:35,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:35,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 04:16:35,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:35,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:35,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:35,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:16:35,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:35,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 04:16:35,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:35,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 04:16:35,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:16:35,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 04:16:35,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:35,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 04:16:35,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:35,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:35,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:35,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 04:16:35,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:35,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 04:16:35,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:35,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 04:16:35,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:16:35,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 04:16:35,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:35,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 04:16:35,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:35,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:35,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:35,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 04:16:35,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:35,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 04:16:35,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:35,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 04:16:35,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:16:35,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 04:16:35,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:35,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-13 04:16:35,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:35,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:35,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:35,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:35,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 04:16:35,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 04:16:35,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-13 04:16:35,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:35,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 04:16:35,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 04:16:35,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 04:16:35,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:35,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 04:16:35,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:35,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:35,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:35,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 04:16:35,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:35,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 04:16:35,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:35,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 04:16:35,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:16:35,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 04:16:35,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:35,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-13 04:16:35,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:35,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:35,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:35,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 04:16:35,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:35,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 04:16:35,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:35,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:16:35,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 04:16:35,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:16:35,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:35,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:16:35,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:35,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:35,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:35,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:16:35,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:35,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 04:16:35,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:35,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:16:35,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:16:35,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:16:35,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:35,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 04:16:35,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:35,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:35,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:35,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-13 04:16:35,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:35,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 04:16:35,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:35,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:16:35,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-13 04:16:35,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:16:35,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:35,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:16:35,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:35,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:35,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:35,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 04:16:35,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:35,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 04:16:35,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:35,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:16:35,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:16:35,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:16:35,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:35,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:16:35,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:35,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:35,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:35,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:16:35,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:35,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 04:16:35,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:35,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:16:35,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:16:35,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:16:35,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:35,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 04:16:35,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:35,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:35,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:35,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 04:16:35,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:35,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 04:16:35,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:35,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:16:35,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:16:35,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:16:35,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:35,863 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-10-13 04:16:35,864 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [454635302] [2020-10-13 04:16:35,864 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 04:16:35,864 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-13 04:16:35,865 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479899615] [2020-10-13 04:16:35,867 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-13 04:16:35,867 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 04:16:35,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-13 04:16:35,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2020-10-13 04:16:35,869 INFO L87 Difference]: Start difference. First operand 1088 states and 1350 transitions. Second operand 16 states. [2020-10-13 04:16:36,375 WARN L193 SmtUtils]: Spent 485.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-13 04:16:37,041 WARN L193 SmtUtils]: Spent 450.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-13 04:16:37,455 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-13 04:16:38,059 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-13 04:16:38,771 WARN L193 SmtUtils]: Spent 669.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 208 [2020-10-13 04:16:39,154 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-13 04:16:39,916 WARN L193 SmtUtils]: Spent 706.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 210 [2020-10-13 04:16:40,336 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-13 04:16:40,960 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-13 04:16:41,644 WARN L193 SmtUtils]: Spent 629.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 207 [2020-10-13 04:16:42,382 WARN L193 SmtUtils]: Spent 653.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 209 [2020-10-13 04:16:42,886 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-13 04:16:43,369 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-13 04:16:50,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 04:16:50,815 INFO L93 Difference]: Finished difference Result 3122 states and 4040 transitions. [2020-10-13 04:16:50,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-13 04:16:50,816 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 91 [2020-10-13 04:16:50,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 04:16:50,825 INFO L225 Difference]: With dead ends: 3122 [2020-10-13 04:16:50,825 INFO L226 Difference]: Without dead ends: 2076 [2020-10-13 04:16:50,829 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 407 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=478, Invalid=1414, Unknown=0, NotChecked=0, Total=1892 [2020-10-13 04:16:50,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2076 states. [2020-10-13 04:16:51,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2076 to 1425. [2020-10-13 04:16:51,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1425 states. [2020-10-13 04:16:51,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 1752 transitions. [2020-10-13 04:16:51,078 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 1752 transitions. Word has length 91 [2020-10-13 04:16:51,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 04:16:51,079 INFO L479 AbstractCegarLoop]: Abstraction has 1425 states and 1752 transitions. [2020-10-13 04:16:51,079 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-13 04:16:51,079 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 1752 transitions. [2020-10-13 04:16:51,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-13 04:16:51,084 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 04:16:51,084 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] [2020-10-13 04:16:51,084 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 04:16:51,084 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 04:16:51,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 04:16:51,085 INFO L82 PathProgramCache]: Analyzing trace with hash -88621768, now seen corresponding path program 1 times [2020-10-13 04:16:51,085 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 04:16:51,085 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1007713731] [2020-10-13 04:16:51,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 04:16:51,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:51,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:51,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:51,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:51,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:53,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:53,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-13 04:16:53,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 04:16:53,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2731 [2020-10-13 04:16:53,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:53,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 04:16:53,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 04:16:53,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-13 04:16:53,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:54,262 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-13 04:16:54,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 04:16:54,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:54,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:54,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:54,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 04:16:54,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:54,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-13 04:16:54,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:54,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 04:16:54,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:16:54,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 04:16:54,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:16:54,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 04:16:54,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:54,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:54,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:54,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:16:54,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:54,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 04:16:54,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:54,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 04:16:54,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:16:54,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 04:16:54,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:16:54,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 04:16:54,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:54,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:54,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:54,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 04:16:54,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:54,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 04:16:54,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:54,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 04:16:54,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:16:54,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 04:16:54,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:16:54,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 04:16:54,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:54,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:54,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:54,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 04:16:54,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:54,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 04:16:54,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:54,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 04:16:54,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:16:54,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 04:16:54,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:16:54,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-13 04:16:54,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:54,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:54,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:54,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:54,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 04:16:54,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 04:16:54,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-13 04:16:54,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:54,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 04:16:54,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:16:54,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 04:16:54,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:16:54,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 04:16:54,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:54,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:54,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:54,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 04:16:54,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:54,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 04:16:54,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:54,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 04:16:54,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:16:54,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 04:16:54,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 04:16:54,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-13 04:16:54,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:54,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:54,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:54,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 04:16:54,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:54,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 04:16:54,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:54,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:16:54,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 04:16:54,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:16:54,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:16:54,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:16:54,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:54,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:54,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:54,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:16:54,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:54,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 04:16:54,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:54,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:16:54,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:16:54,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:16:54,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:16:54,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 04:16:54,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:54,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:54,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:54,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-13 04:16:54,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:54,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 04:16:54,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:54,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:16:54,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-13 04:16:54,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:16:54,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:16:54,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:16:54,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:54,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:54,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:54,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 04:16:54,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:54,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 04:16:54,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:54,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:16:54,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:16:54,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:16:54,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:16:54,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:16:54,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:54,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:54,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:54,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:16:54,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:54,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 04:16:54,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:54,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:16:54,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:16:54,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:16:54,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:16:54,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 04:16:54,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:54,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:54,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:16:54,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 04:16:54,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:16:54,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 04:16:54,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:16:54,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:16:54,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:16:54,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:16:54,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:16:54,980 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-13 04:16:54,980 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1007713731] [2020-10-13 04:16:54,981 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 04:16:54,981 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-13 04:16:54,981 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162693849] [2020-10-13 04:16:54,982 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-13 04:16:54,982 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 04:16:54,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-13 04:16:54,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2020-10-13 04:16:54,983 INFO L87 Difference]: Start difference. First operand 1425 states and 1752 transitions. Second operand 16 states. [2020-10-13 04:16:55,342 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-13 04:16:56,128 WARN L193 SmtUtils]: Spent 616.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 205 [2020-10-13 04:16:56,802 WARN L193 SmtUtils]: Spent 569.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 196 [2020-10-13 04:16:57,754 WARN L193 SmtUtils]: Spent 644.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 207 [2020-10-13 04:16:58,445 WARN L193 SmtUtils]: Spent 652.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 209 [2020-10-13 04:16:59,219 WARN L193 SmtUtils]: Spent 677.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 211 [2020-10-13 04:16:59,881 WARN L193 SmtUtils]: Spent 632.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 208 [2020-10-13 04:17:00,678 WARN L193 SmtUtils]: Spent 631.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 207 [2020-10-13 04:17:01,153 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-13 04:17:01,564 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-13 04:17:01,961 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-13 04:17:02,614 WARN L193 SmtUtils]: Spent 600.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 208 [2020-10-13 04:17:03,302 WARN L193 SmtUtils]: Spent 624.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 210 [2020-10-13 04:17:03,835 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-13 04:17:04,226 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-13 04:17:04,772 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-13 04:17:05,421 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-13 04:17:12,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 04:17:12,452 INFO L93 Difference]: Finished difference Result 3689 states and 4636 transitions. [2020-10-13 04:17:12,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-13 04:17:12,453 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 92 [2020-10-13 04:17:12,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 04:17:12,469 INFO L225 Difference]: With dead ends: 3689 [2020-10-13 04:17:12,469 INFO L226 Difference]: Without dead ends: 2306 [2020-10-13 04:17:12,474 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 446 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=516, Invalid=1464, Unknown=0, NotChecked=0, Total=1980 [2020-10-13 04:17:12,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2306 states. [2020-10-13 04:17:12,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2306 to 1875. [2020-10-13 04:17:12,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1875 states. [2020-10-13 04:17:12,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1875 states to 1875 states and 2311 transitions. [2020-10-13 04:17:12,950 INFO L78 Accepts]: Start accepts. Automaton has 1875 states and 2311 transitions. Word has length 92 [2020-10-13 04:17:12,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 04:17:12,954 INFO L479 AbstractCegarLoop]: Abstraction has 1875 states and 2311 transitions. [2020-10-13 04:17:12,955 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-13 04:17:12,955 INFO L276 IsEmpty]: Start isEmpty. Operand 1875 states and 2311 transitions. [2020-10-13 04:17:12,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-13 04:17:12,959 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 04:17:12,959 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] [2020-10-13 04:17:12,959 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 04:17:12,960 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 04:17:12,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 04:17:12,960 INFO L82 PathProgramCache]: Analyzing trace with hash 1826521188, now seen corresponding path program 1 times [2020-10-13 04:17:12,960 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 04:17:12,960 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1912691515] [2020-10-13 04:17:12,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 04:17:13,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:13,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:13,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:13,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:13,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:15,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:15,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-13 04:17:15,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 04:17:15,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2633 [2020-10-13 04:17:15,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:15,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 04:17:15,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 04:17:15,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-13 04:17:15,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:17:15,983 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-13 04:17:15,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 04:17:15,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:15,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:16,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:16,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 04:17:16,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:17:16,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 04:17:16,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:16,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 04:17:16,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:17:16,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 04:17:16,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:17:16,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 04:17:16,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:16,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:16,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:16,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:17:16,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:17:16,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 04:17:16,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:16,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 04:17:16,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:17:16,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 04:17:16,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:17:16,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 04:17:16,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:16,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:16,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:16,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 04:17:16,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:17:16,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 04:17:16,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:16,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 04:17:16,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:17:16,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 04:17:16,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:17:16,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 04:17:16,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:16,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:16,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:16,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 04:17:16,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:17:16,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 04:17:16,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:16,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 04:17:16,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:17:16,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 04:17:16,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:17:16,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-13 04:17:16,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:16,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:16,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:16,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:16,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 04:17:16,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 04:17:16,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-13 04:17:16,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:16,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 04:17:16,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:17:16,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 04:17:16,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:17:16,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-13 04:17:16,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:16,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:16,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:16,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 04:17:16,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:17:16,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 04:17:16,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:16,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 04:17:16,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:17:16,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 04:17:16,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:17:16,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-13 04:17:16,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:16,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:16,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:16,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 04:17:16,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:17:16,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 04:17:16,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:16,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:17:16,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 04:17:16,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:17:16,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:17:16,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:17:16,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:16,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:16,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:16,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:17:16,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:17:16,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 04:17:16,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:16,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:17:16,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:17:16,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:17:16,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:17:16,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-13 04:17:16,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:16,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:16,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:16,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-13 04:17:16,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:17:16,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 04:17:16,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:16,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:17:16,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-13 04:17:16,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:17:16,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:17:16,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:17:16,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:16,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:16,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:16,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 04:17:16,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:17:16,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 04:17:16,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:16,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:17:16,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:17:16,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:17:16,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:17:16,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:17:16,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:16,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:16,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:16,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:17:16,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:17:16,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 04:17:16,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:16,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:17:16,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:17:16,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:17:16,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:17:16,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 04:17:16,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:16,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:16,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:16,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 04:17:16,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:17:16,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 04:17:16,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:16,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:17:16,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:17:16,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:17:16,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:17:16,421 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-13 04:17:16,422 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1912691515] [2020-10-13 04:17:16,422 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 04:17:16,422 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-13 04:17:16,422 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267911027] [2020-10-13 04:17:16,423 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-13 04:17:16,423 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 04:17:16,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-13 04:17:16,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2020-10-13 04:17:16,423 INFO L87 Difference]: Start difference. First operand 1875 states and 2311 transitions. Second operand 16 states. [2020-10-13 04:17:16,750 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-13 04:17:17,193 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-13 04:17:17,591 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-13 04:17:18,160 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-13 04:17:18,861 WARN L193 SmtUtils]: Spent 658.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 209 [2020-10-13 04:17:19,259 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-13 04:17:20,044 WARN L193 SmtUtils]: Spent 722.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 211 [2020-10-13 04:17:20,649 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-13 04:17:21,077 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-13 04:17:21,493 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-13 04:17:22,206 WARN L193 SmtUtils]: Spent 655.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 208 [2020-10-13 04:17:22,569 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-13 04:17:23,296 WARN L193 SmtUtils]: Spent 672.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 210 [2020-10-13 04:17:23,933 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-13 04:17:24,329 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-13 04:17:25,107 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-13 04:17:32,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 04:17:32,415 INFO L93 Difference]: Finished difference Result 4653 states and 5856 transitions. [2020-10-13 04:17:32,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-13 04:17:32,416 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 93 [2020-10-13 04:17:32,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 04:17:32,427 INFO L225 Difference]: With dead ends: 4653 [2020-10-13 04:17:32,427 INFO L226 Difference]: Without dead ends: 2820 [2020-10-13 04:17:32,432 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=494, Invalid=1398, Unknown=0, NotChecked=0, Total=1892 [2020-10-13 04:17:32,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2820 states. [2020-10-13 04:17:32,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2820 to 2289. [2020-10-13 04:17:32,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2289 states. [2020-10-13 04:17:32,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2289 states to 2289 states and 2832 transitions. [2020-10-13 04:17:32,898 INFO L78 Accepts]: Start accepts. Automaton has 2289 states and 2832 transitions. Word has length 93 [2020-10-13 04:17:32,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 04:17:32,898 INFO L479 AbstractCegarLoop]: Abstraction has 2289 states and 2832 transitions. [2020-10-13 04:17:32,898 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-13 04:17:32,899 INFO L276 IsEmpty]: Start isEmpty. Operand 2289 states and 2832 transitions. [2020-10-13 04:17:32,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-13 04:17:32,903 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 04:17:32,904 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] [2020-10-13 04:17:32,904 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 04:17:32,904 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 04:17:32,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 04:17:32,904 INFO L82 PathProgramCache]: Analyzing trace with hash -711851439, now seen corresponding path program 1 times [2020-10-13 04:17:32,904 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 04:17:32,905 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2022467635] [2020-10-13 04:17:32,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 04:17:32,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:32,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:33,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:33,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:34,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:35,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:35,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-13 04:17:35,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 04:17:35,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2389 [2020-10-13 04:17:35,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:35,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 04:17:35,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 04:17:35,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-13 04:17:35,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:17:35,861 WARN L193 SmtUtils]: Spent 461.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-13 04:17:35,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 04:17:35,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:35,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:35,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:35,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 04:17:35,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:17:35,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-13 04:17:35,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:35,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 04:17:35,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:17:35,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 04:17:35,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:17:35,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 04:17:35,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:36,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:36,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:36,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:17:36,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:17:36,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 04:17:36,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:36,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 04:17:36,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:17:36,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 04:17:36,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:17:36,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 04:17:36,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:36,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:36,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:36,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 04:17:36,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:17:36,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 04:17:36,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:36,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 04:17:36,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:17:36,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 04:17:36,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:17:36,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 04:17:36,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:36,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:36,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:36,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 04:17:36,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:17:36,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 04:17:36,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:36,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 04:17:36,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:17:36,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 04:17:36,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:17:36,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-13 04:17:36,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:36,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:36,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:36,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:36,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 04:17:36,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 04:17:36,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-13 04:17:36,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:36,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 04:17:36,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:17:36,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 04:17:36,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:17:36,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 04:17:36,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:36,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:36,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:36,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:36,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 04:17:36,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 04:17:36,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-13 04:17:36,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:36,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 04:17:36,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:17:36,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 04:17:36,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:17:36,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 04:17:36,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:36,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:36,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:36,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 04:17:36,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:17:36,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 04:17:36,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:36,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:17:36,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 04:17:36,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:17:36,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:17:36,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:17:36,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:36,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:36,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:36,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:17:36,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:17:36,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 04:17:36,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:36,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:17:36,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:17:36,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:17:36,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:17:36,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-13 04:17:36,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:36,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:36,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:36,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-13 04:17:36,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:17:36,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 04:17:36,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:36,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:17:36,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-13 04:17:36,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:17:36,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:17:36,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:17:36,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:36,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:36,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:36,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 04:17:36,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:17:36,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 04:17:36,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:36,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:17:36,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:17:36,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:17:36,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:17:36,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:17:36,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:36,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:36,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:36,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:17:36,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:17:36,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 04:17:36,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:36,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:17:36,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:17:36,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:17:36,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:17:36,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 04:17:36,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:36,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:36,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:36,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 04:17:36,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:17:36,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 04:17:36,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:36,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:17:36,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:17:36,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:17:36,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:17:36,600 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-13 04:17:36,600 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2022467635] [2020-10-13 04:17:36,601 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 04:17:36,601 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-13 04:17:36,601 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924834831] [2020-10-13 04:17:36,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-13 04:17:36,602 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 04:17:36,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-13 04:17:36,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2020-10-13 04:17:36,602 INFO L87 Difference]: Start difference. First operand 2289 states and 2832 transitions. Second operand 16 states. [2020-10-13 04:17:36,920 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-13 04:17:37,404 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-13 04:17:37,828 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-13 04:17:38,558 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-13 04:17:39,295 WARN L193 SmtUtils]: Spent 668.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 209 [2020-10-13 04:17:39,708 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-13 04:17:40,476 WARN L193 SmtUtils]: Spent 686.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 211 [2020-10-13 04:17:41,565 WARN L193 SmtUtils]: Spent 651.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 207 [2020-10-13 04:17:41,967 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-13 04:17:42,387 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-13 04:17:43,101 WARN L193 SmtUtils]: Spent 651.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 208 [2020-10-13 04:17:43,830 WARN L193 SmtUtils]: Spent 667.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 210 [2020-10-13 04:17:44,196 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-13 04:17:44,842 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-13 04:17:45,564 WARN L193 SmtUtils]: Spent 601.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 206 [2020-10-13 04:17:46,133 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-13 04:17:55,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 04:17:55,025 INFO L93 Difference]: Finished difference Result 5569 states and 7016 transitions. [2020-10-13 04:17:55,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-13 04:17:55,026 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 94 [2020-10-13 04:17:55,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 04:17:55,039 INFO L225 Difference]: With dead ends: 5569 [2020-10-13 04:17:55,040 INFO L226 Difference]: Without dead ends: 3322 [2020-10-13 04:17:55,045 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 417 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=494, Invalid=1398, Unknown=0, NotChecked=0, Total=1892 [2020-10-13 04:17:55,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3322 states. [2020-10-13 04:17:55,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3322 to 2699. [2020-10-13 04:17:55,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2699 states. [2020-10-13 04:17:55,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2699 states to 2699 states and 3343 transitions. [2020-10-13 04:17:55,456 INFO L78 Accepts]: Start accepts. Automaton has 2699 states and 3343 transitions. Word has length 94 [2020-10-13 04:17:55,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 04:17:55,456 INFO L479 AbstractCegarLoop]: Abstraction has 2699 states and 3343 transitions. [2020-10-13 04:17:55,456 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-13 04:17:55,456 INFO L276 IsEmpty]: Start isEmpty. Operand 2699 states and 3343 transitions. [2020-10-13 04:17:55,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-13 04:17:55,462 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 04:17:55,462 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] [2020-10-13 04:17:55,462 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 04:17:55,463 INFO L427 AbstractCegarLoop]: === Iteration 15 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 04:17:55,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 04:17:55,463 INFO L82 PathProgramCache]: Analyzing trace with hash 2019319629, now seen corresponding path program 1 times [2020-10-13 04:17:55,463 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 04:17:55,463 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1161470370] [2020-10-13 04:17:55,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 04:17:55,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:55,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:55,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:55,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-13 04:17:55,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:17:55,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 207 [2020-10-13 04:17:55,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:55,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 04:17:55,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-10-13 04:17:55,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 04:17:55,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:17:56,026 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-13 04:17:56,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 04:17:56,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:56,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:56,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:56,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 04:17:56,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:17:56,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 04:17:56,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:56,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:17:56,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:17:56,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:17:56,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:17:56,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 04:17:56,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:56,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:56,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:56,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:17:56,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:17:56,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 04:17:56,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:56,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:17:56,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:17:56,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:17:56,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 04:17:56,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 04:17:56,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:56,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:56,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:56,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 04:17:56,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:17:56,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 04:17:56,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:56,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:17:56,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:17:56,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:17:56,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:17:56,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 04:17:56,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:56,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:56,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:56,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 04:17:56,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:17:56,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 04:17:56,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:56,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:17:56,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:17:56,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:17:56,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:17:56,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-13 04:17:56,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:56,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:56,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:56,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 04:17:56,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:17:56,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 04:17:56,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:56,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:17:56,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:17:56,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:17:56,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:17:56,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:17:56,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:56,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:56,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:56,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 04:17:56,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:17:56,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 04:17:56,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:56,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:17:56,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:17:56,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:17:56,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:17:56,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-13 04:17:56,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:56,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:56,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:56,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 04:17:56,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:17:56,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 04:17:56,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:56,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 04:17:56,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:17:56,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 04:17:56,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:17:56,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:17:56,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:56,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:56,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:56,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:17:56,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:17:56,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 04:17:56,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:56,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:17:56,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:17:56,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:17:56,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:17:56,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 04:17:56,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:56,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:56,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:56,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 04:17:56,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:17:56,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 04:17:56,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:56,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:17:56,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 04:17:56,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:17:56,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:17:56,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:17:56,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:56,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:56,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:56,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:17:56,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:17:56,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 04:17:56,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:56,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:17:56,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:17:56,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:17:56,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:17:56,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-13 04:17:56,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:56,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:56,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:56,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-13 04:17:56,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:17:56,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 04:17:56,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:56,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:17:56,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-13 04:17:56,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:17:56,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:17:56,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:17:56,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:56,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:56,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:56,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 04:17:56,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:17:56,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 04:17:56,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:56,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:17:56,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:17:56,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:17:56,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:17:56,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:17:56,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:56,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:56,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:56,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:17:56,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:17:56,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 04:17:56,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:56,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:17:56,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:17:56,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:17:56,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:17:56,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 04:17:56,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:56,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:56,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:56,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 04:17:56,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:17:56,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 04:17:56,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:56,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:17:56,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:17:56,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:17:56,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:17:56,448 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-10-13 04:17:56,449 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1161470370] [2020-10-13 04:17:56,449 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 04:17:56,449 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 04:17:56,450 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152442165] [2020-10-13 04:17:56,450 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 04:17:56,451 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 04:17:56,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 04:17:56,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 04:17:56,451 INFO L87 Difference]: Start difference. First operand 2699 states and 3343 transitions. Second operand 8 states. [2020-10-13 04:17:56,972 WARN L193 SmtUtils]: Spent 504.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-13 04:17:57,610 WARN L193 SmtUtils]: Spent 538.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-13 04:17:58,062 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-13 04:18:02,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 04:18:02,620 INFO L93 Difference]: Finished difference Result 6601 states and 8390 transitions. [2020-10-13 04:18:02,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 04:18:02,621 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 103 [2020-10-13 04:18:02,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 04:18:02,640 INFO L225 Difference]: With dead ends: 6601 [2020-10-13 04:18:02,640 INFO L226 Difference]: Without dead ends: 3944 [2020-10-13 04:18:02,647 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2020-10-13 04:18:02,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3944 states. [2020-10-13 04:18:03,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3944 to 3365. [2020-10-13 04:18:03,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3365 states. [2020-10-13 04:18:03,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3365 states to 3365 states and 4212 transitions. [2020-10-13 04:18:03,040 INFO L78 Accepts]: Start accepts. Automaton has 3365 states and 4212 transitions. Word has length 103 [2020-10-13 04:18:03,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 04:18:03,040 INFO L479 AbstractCegarLoop]: Abstraction has 3365 states and 4212 transitions. [2020-10-13 04:18:03,040 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 04:18:03,040 INFO L276 IsEmpty]: Start isEmpty. Operand 3365 states and 4212 transitions. [2020-10-13 04:18:03,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-13 04:18:03,046 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 04:18:03,046 INFO L422 BasicCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1] [2020-10-13 04:18:03,047 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 04:18:03,047 INFO L427 AbstractCegarLoop]: === Iteration 16 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 04:18:03,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 04:18:03,047 INFO L82 PathProgramCache]: Analyzing trace with hash 635005418, now seen corresponding path program 1 times [2020-10-13 04:18:03,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 04:18:03,047 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1396490273] [2020-10-13 04:18:03,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 04:18:03,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:18:03,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:03,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:03,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:03,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:04,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:06,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:06,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:08,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:18:08,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-13 04:18:08,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 04:18:08,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-13 04:18:08,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:18:08,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-13 04:18:08,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 04:18:08,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-13 04:18:08,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:18:08,532 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-13 04:18:08,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 04:18:08,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:18:08,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:08,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:18:08,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 04:18:08,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:18:08,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-13 04:18:08,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:18:08,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 04:18:08,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:18:08,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 04:18:08,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:18:08,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 04:18:08,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:18:08,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:08,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:18:08,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:18:08,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:18:08,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 04:18:08,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:18:08,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 04:18:08,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:18:08,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 04:18:08,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:18:08,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 04:18:08,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:18:08,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:08,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:18:08,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 04:18:08,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:18:08,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 04:18:08,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:18:08,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 04:18:08,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:18:08,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 04:18:08,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:18:08,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 04:18:08,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:18:08,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:08,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:18:08,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 04:18:08,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:18:08,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 04:18:08,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:18:08,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 04:18:08,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:18:08,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 04:18:08,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:18:08,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-13 04:18:08,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:18:08,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:08,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:08,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:18:08,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 04:18:08,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 04:18:08,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-13 04:18:08,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:18:08,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 04:18:08,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:18:08,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 04:18:08,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:18:08,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 04:18:08,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:18:08,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:08,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:08,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:18:08,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 04:18:08,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 04:18:08,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 04:18:08,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:18:08,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 04:18:08,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:18:08,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 04:18:08,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:18:08,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-13 04:18:08,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:18:08,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:09,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:09,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:18:09,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 04:18:09,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 04:18:09,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-13 04:18:09,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:18:09,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 04:18:09,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 04:18:09,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 04:18:09,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:18:09,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 04:18:09,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:18:09,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:09,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:18:09,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 04:18:09,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:18:09,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 04:18:09,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:18:09,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 04:18:09,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:18:09,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 04:18:09,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:18:09,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 04:18:09,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:18:09,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:09,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:18:09,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 04:18:09,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:18:09,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 04:18:09,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:18:09,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:18:09,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 04:18:09,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:18:09,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:18:09,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:18:09,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:18:09,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:09,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:18:09,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:18:09,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:18:09,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 04:18:09,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:18:09,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:18:09,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:18:09,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:18:09,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:18:09,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-13 04:18:09,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:18:09,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:09,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:18:09,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-13 04:18:09,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:18:09,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 04:18:09,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:18:09,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:18:09,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-13 04:18:09,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:18:09,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:18:09,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:18:09,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:18:09,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:09,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:18:09,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 04:18:09,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:18:09,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 04:18:09,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:18:09,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:18:09,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:18:09,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:18:09,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:18:09,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:18:09,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:18:09,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:09,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:18:09,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:18:09,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:18:09,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 04:18:09,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:18:09,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:18:09,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:18:09,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:18:09,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:18:09,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 04:18:09,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:18:09,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:09,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:18:09,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 04:18:09,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:18:09,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 04:18:09,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:18:09,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:18:09,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:18:09,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:18:09,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:18:09,318 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 4 proven. 18 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-10-13 04:18:09,318 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1396490273] [2020-10-13 04:18:09,321 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 04:18:09,321 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-13 04:18:09,322 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11967136] [2020-10-13 04:18:09,322 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-13 04:18:09,322 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 04:18:09,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-13 04:18:09,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2020-10-13 04:18:09,323 INFO L87 Difference]: Start difference. First operand 3365 states and 4212 transitions. Second operand 19 states. [2020-10-13 04:18:09,639 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-13 04:18:10,134 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-13 04:18:10,601 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-13 04:18:11,389 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-13 04:18:12,166 WARN L193 SmtUtils]: Spent 703.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 209 [2020-10-13 04:18:12,997 WARN L193 SmtUtils]: Spent 681.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 211 [2020-10-13 04:18:13,363 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-13 04:18:13,845 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-13 04:18:14,583 WARN L193 SmtUtils]: Spent 641.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 207 [2020-10-13 04:18:15,210 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-13 04:18:15,613 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-13 04:18:15,979 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-13 04:18:16,705 WARN L193 SmtUtils]: Spent 650.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 208 [2020-10-13 04:18:17,475 WARN L193 SmtUtils]: Spent 662.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 210 [2020-10-13 04:18:18,283 WARN L193 SmtUtils]: Spent 631.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 206 [2020-10-13 04:18:18,962 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-13 04:18:28,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 04:18:28,160 INFO L93 Difference]: Finished difference Result 6880 states and 8812 transitions. [2020-10-13 04:18:28,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-13 04:18:28,162 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 109 [2020-10-13 04:18:28,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 04:18:28,176 INFO L225 Difference]: With dead ends: 6880 [2020-10-13 04:18:28,176 INFO L226 Difference]: Without dead ends: 3557 [2020-10-13 04:18:28,183 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 362 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=529, Invalid=1451, Unknown=0, NotChecked=0, Total=1980 [2020-10-13 04:18:28,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3557 states. [2020-10-13 04:18:28,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3557 to 605. [2020-10-13 04:18:28,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 605 states. [2020-10-13 04:18:28,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 730 transitions. [2020-10-13 04:18:28,390 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 730 transitions. Word has length 109 [2020-10-13 04:18:28,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 04:18:28,390 INFO L479 AbstractCegarLoop]: Abstraction has 605 states and 730 transitions. [2020-10-13 04:18:28,390 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-13 04:18:28,390 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 730 transitions. [2020-10-13 04:18:28,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-13 04:18:28,393 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 04:18:28,394 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 04:18:28,394 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 04:18:28,394 INFO L427 AbstractCegarLoop]: === Iteration 17 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 04:18:28,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 04:18:28,395 INFO L82 PathProgramCache]: Analyzing trace with hash 1834221589, now seen corresponding path program 1 times [2020-10-13 04:18:28,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 04:18:28,395 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1270033885] [2020-10-13 04:18:28,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 04:18:28,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:18:28,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:28,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:18:28,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-10-13 04:18:28,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:18:28,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-10-13 04:18:28,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:18:28,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 04:18:28,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-13 04:18:28,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 04:18:28,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:18:28,933 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-13 04:18:28,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 04:18:28,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:18:28,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:28,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:18:28,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 04:18:28,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:18:28,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 04:18:28,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:18:28,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:18:28,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:18:28,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:18:28,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:18:28,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 04:18:28,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:18:28,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:28,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:18:28,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:18:28,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:18:28,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 04:18:28,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:18:28,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:18:28,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:18:28,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:18:28,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:18:28,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 04:18:28,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:18:28,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:28,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:18:28,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 04:18:28,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:18:28,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 04:18:28,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:18:28,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:18:28,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:18:28,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:18:28,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0