/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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 [2020-10-15 11:56:16,909 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 11:56:16,915 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 11:56:16,945 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 11:56:16,946 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 11:56:16,954 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 11:56:16,956 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 11:56:16,959 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 11:56:16,962 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 11:56:16,965 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 11:56:16,965 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 11:56:16,967 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 11:56:16,967 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 11:56:16,970 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 11:56:16,972 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 11:56:16,974 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 11:56:16,975 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 11:56:16,977 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 11:56:16,979 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 11:56:16,987 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 11:56:16,989 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 11:56:16,990 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 11:56:16,991 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 11:56:16,992 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 11:56:17,004 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 11:56:17,009 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 11:56:17,009 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 11:56:17,010 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 11:56:17,011 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 11:56:17,014 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 11:56:17,014 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 11:56:17,015 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 11:56:17,015 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 11:56:17,016 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 11:56:17,019 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 11:56:17,019 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 11:56:17,020 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 11:56:17,022 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 11:56:17,022 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 11:56:17,023 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 11:56:17,024 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 11:56:17,025 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 [2020-10-15 11:56:17,067 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 11:56:17,068 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 11:56:17,069 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 11:56:17,069 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 11:56:17,069 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 11:56:17,070 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 11:56:17,070 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 11:56:17,071 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 11:56:17,071 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 11:56:17,071 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 11:56:17,072 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 11:56:17,072 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 11:56:17,072 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 11:56:17,073 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 11:56:17,073 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 11:56:17,073 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 11:56:17,073 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 11:56:17,074 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 11:56:17,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 11:56:17,074 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 11:56:17,074 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 11:56:17,075 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 11:56:17,075 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 11:56:17,075 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 11:56:17,075 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 11:56:17,075 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 11:56:17,075 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 11:56:17,076 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 11:56:17,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 11:56:17,410 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 11:56:17,417 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 11:56:17,419 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 11:56:17,419 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 11:56:17,420 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i [2020-10-15 11:56:17,482 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3dd1c9531/c379b7452bb74fc5a06b8c9ebd04da32/FLAG0bb420a58 [2020-10-15 11:56:18,207 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 11:56:18,209 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i [2020-10-15 11:56:18,235 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3dd1c9531/c379b7452bb74fc5a06b8c9ebd04da32/FLAG0bb420a58 [2020-10-15 11:56:18,300 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3dd1c9531/c379b7452bb74fc5a06b8c9ebd04da32 [2020-10-15 11:56:18,308 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 11:56:18,310 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 11:56:18,311 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 11:56:18,311 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 11:56:18,315 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 11:56:18,316 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 11:56:18" (1/1) ... [2020-10-15 11:56:18,319 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19b98b76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:56:18, skipping insertion in model container [2020-10-15 11:56:18,319 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 11:56:18" (1/1) ... [2020-10-15 11:56:18,327 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 11:56:18,419 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 11:56:19,473 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 11:56:19,494 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 11:56:19,619 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 11:56:19,720 INFO L208 MainTranslator]: Completed translation [2020-10-15 11:56:19,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:56:19 WrapperNode [2020-10-15 11:56:19,722 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 11:56:19,723 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 11:56:19,723 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 11:56:19,723 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 11:56:19,739 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:56:19" (1/1) ... [2020-10-15 11:56:19,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:56:19" (1/1) ... [2020-10-15 11:56:19,803 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:56:19" (1/1) ... [2020-10-15 11:56:19,804 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:56:19" (1/1) ... [2020-10-15 11:56:19,877 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:56:19" (1/1) ... [2020-10-15 11:56:19,889 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:56:19" (1/1) ... [2020-10-15 11:56:19,903 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:56:19" (1/1) ... [2020-10-15 11:56:19,922 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 11:56:19,922 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 11:56:19,923 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 11:56:19,923 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 11:56:19,924 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:56:19" (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 [2020-10-15 11:56:20,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 11:56:20,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 11:56:20,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~VOID [2020-10-15 11:56:20,013 INFO L138 BoogieDeclarations]: Found implementation of procedure outer_sync [2020-10-15 11:56:20,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_9 [2020-10-15 11:56:20,014 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_name [2020-10-15 11:56:20,014 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 11:56:20,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-15 11:56:20,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-15 11:56:20,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-15 11:56:20,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-15 11:56:20,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-15 11:56:20,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-15 11:56:20,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-15 11:56:20,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-15 11:56:20,015 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2020-10-15 11:56:20,016 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq_wake [2020-10-15 11:56:20,016 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq_wake [2020-10-15 11:56:20,016 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2020-10-15 11:56:20,016 INFO L138 BoogieDeclarations]: Found implementation of procedure device_may_wakeup [2020-10-15 11:56:20,017 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2020-10-15 11:56:20,017 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2020-10-15 11:56:20,017 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2020-10-15 11:56:20,018 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_check_busy [2020-10-15 11:56:20,018 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_wait_while_busy [2020-10-15 11:56:20,018 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_read_time [2020-10-15 11:56:20,018 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_set_time [2020-10-15 11:56:20,018 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_read_alarm [2020-10-15 11:56:20,019 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_alarm_irq_enable [2020-10-15 11:56:20,019 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_set_alarm [2020-10-15 11:56:20,019 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_proc [2020-10-15 11:56:20,019 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_irq_handler [2020-10-15 11:56:20,019 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_probe [2020-10-15 11:56:20,019 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_remove [2020-10-15 11:56:20,020 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_suspend [2020-10-15 11:56:20,020 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_resume [2020-10-15 11:56:20,020 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_shutdown [2020-10-15 11:56:20,020 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_init [2020-10-15 11:56:20,020 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_exit [2020-10-15 11:56:20,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2020-10-15 11:56:20,020 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2020-10-15 11:56:20,022 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2020-10-15 11:56:20,022 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_interrupt_1 [2020-10-15 11:56:20,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_rtc_class_ops_3 [2020-10-15 11:56:20,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_platform_driver_2 [2020-10-15 11:56:20,023 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2020-10-15 11:56:20,023 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 11:56:20,023 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2020-10-15 11:56:20,023 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2020-10-15 11:56:20,023 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2020-10-15 11:56:20,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kzalloc_22 [2020-10-15 11:56:20,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_rtc_device_register_23 [2020-10-15 11:56:20,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_24 [2020-10-15 11:56:20,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_rtc_device_unregister_25 [2020-10-15 11:56:20,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_26 [2020-10-15 11:56:20,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_rtc_device_unregister_27 [2020-10-15 11:56:20,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-10-15 11:56:20,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-10-15 11:56:20,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-10-15 11:56:20,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-10-15 11:56:20,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_init [2020-10-15 11:56:20,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_check [2020-10-15 11:56:20,026 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-10-15 11:56:20,027 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2020-10-15 11:56:20,027 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2020-10-15 11:56:20,027 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2020-10-15 11:56:20,027 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-10-15 11:56:20,028 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-10-15 11:56:20,028 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_notice [2020-10-15 11:56:20,028 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-10-15 11:56:20,029 INFO L138 BoogieDeclarations]: Found implementation of procedure device_init_wakeup [2020-10-15 11:56:20,029 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2020-10-15 11:56:20,030 INFO L138 BoogieDeclarations]: Found implementation of procedure irq_set_irq_wake [2020-10-15 11:56:20,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-15 11:56:20,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-15 11:56:20,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_2 [2020-10-15 11:56:20,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_3 [2020-10-15 11:56:20,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_3 [2020-10-15 11:56:20,032 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_probe [2020-10-15 11:56:20,032 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2020-10-15 11:56:20,033 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_irq [2020-10-15 11:56:20,033 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2020-10-15 11:56:20,034 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2020-10-15 11:56:20,035 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_device_register [2020-10-15 11:56:20,035 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_device_unregister [2020-10-15 11:56:20,035 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_time_to_tm [2020-10-15 11:56:20,035 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_tm_to_time [2020-10-15 11:56:20,036 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_update_irq [2020-10-15 11:56:20,036 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_valid_tm [2020-10-15 11:56:20,036 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_printf [2020-10-15 11:56:20,036 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_ioremap [2020-10-15 11:56:20,036 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_iounmap [2020-10-15 11:56:20,037 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-15 11:56:20,037 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-15 11:56:20,037 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-15 11:56:20,037 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 11:56:20,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-15 11:56:20,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-10-15 11:56:20,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-10-15 11:56:20,038 INFO L130 BoogieDeclarations]: Found specification of procedure outer_sync [2020-10-15 11:56:20,038 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~VOID [2020-10-15 11:56:20,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-15 11:56:20,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-15 11:56:20,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-15 11:56:20,039 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-15 11:56:20,039 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2020-10-15 11:56:20,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_9 [2020-10-15 11:56:20,039 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2020-10-15 11:56:20,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_check [2020-10-15 11:56:20,040 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-15 11:56:20,040 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_name [2020-10-15 11:56:20,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kzalloc_22 [2020-10-15 11:56:20,040 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-15 11:56:20,040 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-15 11:56:20,041 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-15 11:56:20,041 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-15 11:56:20,041 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-15 11:56:20,042 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 11:56:20,042 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 11:56:20,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-15 11:56:20,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-15 11:56:20,043 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-15 11:56:20,043 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-15 11:56:20,043 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-15 11:56:20,044 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-15 11:56:20,044 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-15 11:56:20,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2020-10-15 11:56:20,046 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2020-10-15 11:56:20,049 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2020-10-15 11:56:20,049 INFO L130 BoogieDeclarations]: Found specification of procedure choose_interrupt_1 [2020-10-15 11:56:20,049 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_rtc_class_ops_3 [2020-10-15 11:56:20,050 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_platform_driver_2 [2020-10-15 11:56:20,050 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2020-10-15 11:56:20,050 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_ioremap [2020-10-15 11:56:20,050 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_iounmap [2020-10-15 11:56:20,050 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-10-15 11:56:20,051 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2020-10-15 11:56:20,051 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2020-10-15 11:56:20,051 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_24 [2020-10-15 11:56:20,052 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2020-10-15 11:56:20,052 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_26 [2020-10-15 11:56:20,052 INFO L130 BoogieDeclarations]: Found specification of procedure irq_set_irq_wake [2020-10-15 11:56:20,052 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq_wake [2020-10-15 11:56:20,052 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq_wake [2020-10-15 11:56:20,052 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_valid_tm [2020-10-15 11:56:20,060 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_tm_to_time [2020-10-15 11:56:20,061 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_time_to_tm [2020-10-15 11:56:20,061 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2020-10-15 11:56:20,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-15 11:56:20,061 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2020-10-15 11:56:20,061 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2020-10-15 11:56:20,061 INFO L130 BoogieDeclarations]: Found specification of procedure device_may_wakeup [2020-10-15 11:56:20,062 INFO L130 BoogieDeclarations]: Found specification of procedure device_init_wakeup [2020-10-15 11:56:20,062 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2020-10-15 11:56:20,063 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-10-15 11:56:20,063 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-10-15 11:56:20,063 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-10-15 11:56:20,063 INFO L130 BoogieDeclarations]: Found specification of procedure dev_notice [2020-10-15 11:56:20,063 INFO L130 BoogieDeclarations]: Found specification of procedure seq_printf [2020-10-15 11:56:20,064 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2020-10-15 11:56:20,064 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2020-10-15 11:56:20,064 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_device_register [2020-10-15 11:56:20,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_rtc_device_register_23 [2020-10-15 11:56:20,065 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_device_unregister [2020-10-15 11:56:20,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_rtc_device_unregister_25 [2020-10-15 11:56:20,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_rtc_device_unregister_27 [2020-10-15 11:56:20,065 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_update_irq [2020-10-15 11:56:20,066 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2020-10-15 11:56:20,066 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_irq [2020-10-15 11:56:20,066 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2020-10-15 11:56:20,066 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_probe [2020-10-15 11:56:20,066 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2020-10-15 11:56:20,067 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2020-10-15 11:56:20,067 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_check_busy [2020-10-15 11:56:20,067 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_wait_while_busy [2020-10-15 11:56:20,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 11:56:20,067 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_read_time [2020-10-15 11:56:20,068 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_set_time [2020-10-15 11:56:20,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 11:56:20,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 11:56:20,068 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_read_alarm [2020-10-15 11:56:20,069 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_alarm_irq_enable [2020-10-15 11:56:20,069 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_set_alarm [2020-10-15 11:56:20,070 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_proc [2020-10-15 11:56:20,070 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_irq_handler [2020-10-15 11:56:20,070 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_probe [2020-10-15 11:56:20,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-15 11:56:20,070 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_remove [2020-10-15 11:56:20,071 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_suspend [2020-10-15 11:56:20,071 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_resume [2020-10-15 11:56:20,071 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_shutdown [2020-10-15 11:56:20,071 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_init [2020-10-15 11:56:20,071 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_exit [2020-10-15 11:56:20,072 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-15 11:56:20,072 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-15 11:56:20,072 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_2 [2020-10-15 11:56:20,072 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_3 [2020-10-15 11:56:20,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_3 [2020-10-15 11:56:20,073 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 11:56:20,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-15 11:56:20,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-10-15 11:56:20,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-10-15 11:56:20,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_init [2020-10-15 11:56:20,074 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-15 11:56:20,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 11:56:20,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-15 11:56:20,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-15 11:56:20,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 11:56:20,969 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-15 11:56:25,230 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 11:56:25,230 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-15 11:56:25,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 11:56:25 BoogieIcfgContainer [2020-10-15 11:56:25,244 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 11:56:25,246 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 11:56:25,247 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 11:56:25,250 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 11:56:25,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 11:56:18" (1/3) ... [2020-10-15 11:56:25,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@543126de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 11:56:25, skipping insertion in model container [2020-10-15 11:56:25,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:56:19" (2/3) ... [2020-10-15 11:56:25,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@543126de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 11:56:25, skipping insertion in model container [2020-10-15 11:56:25,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 11:56:25" (3/3) ... [2020-10-15 11:56:25,254 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i [2020-10-15 11:56:25,265 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 11:56:25,275 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 11:56:25,290 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 11:56:25,320 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 11:56:25,321 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 11:56:25,321 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 11:56:25,321 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 11:56:25,321 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 11:56:25,321 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 11:56:25,321 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 11:56:25,321 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 11:56:25,367 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states. [2020-10-15 11:56:25,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-15 11:56:25,380 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 11:56:25,382 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] [2020-10-15 11:56:25,382 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 11:56:25,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 11:56:25,388 INFO L82 PathProgramCache]: Analyzing trace with hash 729429547, now seen corresponding path program 1 times [2020-10-15 11:56:25,396 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 11:56:25,397 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [305275456] [2020-10-15 11:56:25,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 11:56:25,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:56:25,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:56:25,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:56:26,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:56:27,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:56:27,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-15 11:56:27,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 11:56:27,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1369 [2020-10-15 11:56:27,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:56:27,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:56:27,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 11:56:27,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-15 11:56:27,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-15 11:56:27,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-15 11:56:27,460 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-15 11:56:27,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 11:56:27,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:56:27,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:56:27,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:56:27,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 11:56:27,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:56:27,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-15 11:56:27,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:56:27,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:56:27,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:56:27,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:56:27,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:56:27,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:56:27,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 11:56:27,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:56:27,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:56:27,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:56:27,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:56:27,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:56:27,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 11:56:27,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:56:27,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:56:27,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:56:27,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:56:27,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:56:27,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:56:27,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 11:56:27,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:56:27,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:56:27,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:56:27,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 11:56:27,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:56:27,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 11:56:27,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:56:27,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:56:27,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:56:27,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:56:27,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:56:27,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:56:27,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-15 11:56:27,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:56:27,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:56:27,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:56:27,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:56:27,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:56:27,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 11:56:27,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 11:56:27,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:56:27,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:56:27,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 11:56:27,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 11:56:27,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 11:56:27,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:56:27,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-15 11:56:27,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:56:27,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:56:27,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:56:27,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 11:56:27,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:56:27,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 11:56:27,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:56:27,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:56:27,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:56:27,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-15 11:56:27,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:56:27,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:56:27,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 11:56:27,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:56:27,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:56:27,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:56:27,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:56:27,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:56:27,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 11:56:27,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:56:27,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:56:27,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:56:27,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:56:27,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:56:27,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:56:27,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 11:56:27,688 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [305275456] [2020-10-15 11:56:27,690 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 11:56:27,691 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 11:56:27,692 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498348403] [2020-10-15 11:56:27,697 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 11:56:27,697 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 11:56:27,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 11:56:27,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-15 11:56:27,715 INFO L87 Difference]: Start difference. First operand 646 states. Second operand 9 states. [2020-10-15 11:56:28,048 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 11:56:28,427 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-15 11:56:28,780 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-15 11:56:29,154 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-15 11:56:29,506 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-15 11:56:34,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 11:56:34,059 INFO L93 Difference]: Finished difference Result 1012 states and 1357 transitions. [2020-10-15 11:56:34,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 11:56:34,061 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 49 [2020-10-15 11:56:34,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 11:56:34,081 INFO L225 Difference]: With dead ends: 1012 [2020-10-15 11:56:34,081 INFO L226 Difference]: Without dead ends: 490 [2020-10-15 11:56:34,091 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2020-10-15 11:56:34,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2020-10-15 11:56:34,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 373. [2020-10-15 11:56:34,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2020-10-15 11:56:34,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 457 transitions. [2020-10-15 11:56:34,229 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 457 transitions. Word has length 49 [2020-10-15 11:56:34,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 11:56:34,230 INFO L479 AbstractCegarLoop]: Abstraction has 373 states and 457 transitions. [2020-10-15 11:56:34,230 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 11:56:34,230 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 457 transitions. [2020-10-15 11:56:34,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-10-15 11:56:34,236 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 11:56:34,236 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 11:56:34,237 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 11:56:34,237 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 11:56:34,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 11:56:34,237 INFO L82 PathProgramCache]: Analyzing trace with hash 1339775905, now seen corresponding path program 1 times [2020-10-15 11:56:34,238 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 11:56:34,238 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [451654310] [2020-10-15 11:56:34,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 11:56:34,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:56:34,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:56:34,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:56:34,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:56:39,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:56:39,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-15 11:56:39,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 11:56:39,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-15 11:56:39,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:56:39,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:56:39,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 11:56:39,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 11:56:39,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 11:56:39,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:56:39,679 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-15 11:56:39,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 11:56:39,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:56:39,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:56:39,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:56:39,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 11:56:39,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:56:39,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-15 11:56:39,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:56:39,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:56:39,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 11:56:39,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:56:39,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 11:56:39,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:56:39,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 11:56:39,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:56:39,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:56:39,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:56:39,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:56:39,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:56:39,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 11:56:39,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:56:39,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:56:39,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 11:56:39,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:56:39,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 11:56:39,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:56:39,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 11:56:39,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:56:39,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:56:39,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:56:39,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 11:56:39,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:56:39,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 11:56:39,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:56:39,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:56:39,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 11:56:39,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:56:39,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 11:56:39,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:56:39,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-15 11:56:39,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:56:39,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:56:39,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:56:39,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:56:39,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 11:56:39,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 11:56:39,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-15 11:56:39,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:56:39,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:56:39,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 11:56:39,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:56:39,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 11:56:39,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:56:39,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-15 11:56:39,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:56:39,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:56:39,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:56:39,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 11:56:39,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:56:39,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 11:56:39,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:56:39,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:56:39,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:56:39,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-15 11:56:39,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:56:39,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:56:39,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 11:56:39,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:56:39,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:56:39,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:56:39,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:56:39,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:56:39,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 11:56:39,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:56:39,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:56:39,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:56:39,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:56:39,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:56:39,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:56:39,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-15 11:56:39,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:56:39,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:56:39,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:56:39,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-15 11:56:39,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:56:39,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-15 11:56:39,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:56:39,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:56:39,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:56:39,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-15 11:56:39,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:56:39,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:56:40,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 11:56:40,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:56:40,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:56:40,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:56:40,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 11:56:40,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:56:40,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 11:56:40,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:56:40,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:56:40,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:56:40,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:56:40,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:56:40,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:56:40,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 11:56:40,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:56:40,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:56:40,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:56:40,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:56:40,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:56:40,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 11:56:40,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:56:40,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:56:40,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:56:40,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:56:40,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:56:40,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:56:40,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 11:56:40,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:56:40,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:56:40,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:56:40,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 11:56:40,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:56:40,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 11:56:40,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:56:40,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:56:40,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:56:40,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:56:40,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:56:40,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:56:40,063 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-15 11:56:40,063 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [451654310] [2020-10-15 11:56:40,064 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 11:56:40,064 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 11:56:40,064 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4623995] [2020-10-15 11:56:40,066 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 11:56:40,066 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 11:56:40,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 11:56:40,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-15 11:56:40,067 INFO L87 Difference]: Start difference. First operand 373 states and 457 transitions. Second operand 9 states. [2020-10-15 11:56:40,322 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 11:56:40,698 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-15 11:56:41,069 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-15 11:56:41,570 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-15 11:56:41,867 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-15 11:56:42,222 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-15 11:56:43,160 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-15 11:56:49,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 11:56:49,642 INFO L93 Difference]: Finished difference Result 1319 states and 1697 transitions. [2020-10-15 11:56:49,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-15 11:56:49,648 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 73 [2020-10-15 11:56:49,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 11:56:49,658 INFO L225 Difference]: With dead ends: 1319 [2020-10-15 11:56:49,658 INFO L226 Difference]: Without dead ends: 964 [2020-10-15 11:56:49,662 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2020-10-15 11:56:49,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2020-10-15 11:56:49,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 749. [2020-10-15 11:56:49,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 749 states. [2020-10-15 11:56:49,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 931 transitions. [2020-10-15 11:56:49,850 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 931 transitions. Word has length 73 [2020-10-15 11:56:49,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 11:56:49,851 INFO L479 AbstractCegarLoop]: Abstraction has 749 states and 931 transitions. [2020-10-15 11:56:49,851 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 11:56:49,851 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 931 transitions. [2020-10-15 11:56:49,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-15 11:56:49,855 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 11:56:49,856 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 11:56:49,856 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 11:56:49,856 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 11:56:49,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 11:56:49,857 INFO L82 PathProgramCache]: Analyzing trace with hash 988325179, now seen corresponding path program 1 times [2020-10-15 11:56:49,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 11:56:49,857 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [676084479] [2020-10-15 11:56:49,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 11:56:49,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:56:49,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:56:49,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:56:50,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:56:53,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:56:53,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-15 11:56:53,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 11:56:53,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3162 [2020-10-15 11:56:53,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:56:53,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:56:53,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 11:56:53,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 11:56:53,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-15 11:56:53,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:56:53,363 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-15 11:56:53,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 11:56:53,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:56:53,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:56:53,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:56:53,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 11:56:53,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:56:53,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-15 11:56:53,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:56:53,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:56:53,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 11:56:53,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:56:53,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 11:56:53,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:56:53,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 11:56:53,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:56:53,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:56:53,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:56:53,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:56:53,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:56:53,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 11:56:53,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:56:53,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:56:53,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 11:56:53,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:56:53,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 11:56:53,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:56:53,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 11:56:53,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:56:53,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:56:53,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:56:53,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 11:56:53,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:56:53,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 11:56:53,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:56:53,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:56:53,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 11:56:53,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:56:53,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 11:56:53,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:56:53,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-15 11:56:53,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:56:53,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:56:53,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:56:53,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:56:53,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 11:56:53,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 11:56:53,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-15 11:56:53,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:56:53,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:56:53,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 11:56:53,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:56:53,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 11:56:53,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:56:53,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-15 11:56:53,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:56:53,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:56:53,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:56:53,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 11:56:53,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:56:53,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 11:56:53,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:56:53,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:56:53,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:56:53,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-15 11:56:53,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:56:53,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:56:53,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 11:56:53,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:56:53,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:56:53,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:56:53,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:56:53,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:56:53,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 11:56:53,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:56:53,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:56:53,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:56:53,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:56:53,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:56:53,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:56:53,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-15 11:56:53,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:56:53,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:56:53,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:56:53,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-15 11:56:53,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:56:53,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 11:56:53,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:56:53,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:56:53,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:56:53,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-15 11:56:53,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:56:53,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:56:53,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 11:56:53,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:56:53,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:56:53,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:56:53,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 11:56:53,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:56:53,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 11:56:53,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:56:53,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:56:53,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:56:53,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:56:53,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:56:53,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:56:53,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 11:56:53,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:56:53,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:56:53,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:56:53,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:56:53,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:56:53,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 11:56:53,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:56:53,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:56:53,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:56:53,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:56:53,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:56:53,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:56:53,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 11:56:53,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:56:53,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:56:53,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:56:53,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 11:56:53,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:56:53,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 11:56:53,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:56:53,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:56:53,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:56:53,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:56:53,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:56:53,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:56:53,749 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-15 11:56:53,751 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [676084479] [2020-10-15 11:56:53,751 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 11:56:53,751 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 11:56:53,751 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243699473] [2020-10-15 11:56:53,752 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 11:56:53,752 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 11:56:53,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 11:56:53,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-15 11:56:53,753 INFO L87 Difference]: Start difference. First operand 749 states and 931 transitions. Second operand 9 states. [2020-10-15 11:56:54,026 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 11:56:54,451 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-15 11:56:54,735 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-15 11:56:55,295 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-15 11:56:55,605 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-15 11:56:55,890 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-15 11:56:59,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 11:56:59,841 INFO L93 Difference]: Finished difference Result 1690 states and 2167 transitions. [2020-10-15 11:56:59,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-15 11:56:59,842 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 74 [2020-10-15 11:56:59,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 11:56:59,852 INFO L225 Difference]: With dead ends: 1690 [2020-10-15 11:56:59,852 INFO L226 Difference]: Without dead ends: 959 [2020-10-15 11:56:59,856 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2020-10-15 11:56:59,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2020-10-15 11:56:59,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 753. [2020-10-15 11:56:59,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 753 states. [2020-10-15 11:56:59,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 753 states to 753 states and 931 transitions. [2020-10-15 11:56:59,978 INFO L78 Accepts]: Start accepts. Automaton has 753 states and 931 transitions. Word has length 74 [2020-10-15 11:56:59,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 11:56:59,979 INFO L479 AbstractCegarLoop]: Abstraction has 753 states and 931 transitions. [2020-10-15 11:56:59,979 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 11:56:59,979 INFO L276 IsEmpty]: Start isEmpty. Operand 753 states and 931 transitions. [2020-10-15 11:56:59,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-15 11:56:59,982 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 11:56:59,982 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 11:56:59,982 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 11:56:59,982 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 11:56:59,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 11:56:59,983 INFO L82 PathProgramCache]: Analyzing trace with hash 214660246, now seen corresponding path program 1 times [2020-10-15 11:56:59,983 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 11:56:59,983 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1378511309] [2020-10-15 11:56:59,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 11:57:00,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:00,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:00,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:00,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:00,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:00,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-15 11:57:00,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 11:57:00,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 763 [2020-10-15 11:57:00,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:00,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:00,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 11:57:00,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-15 11:57:00,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 11:57:00,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:57:01,017 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-15 11:57:01,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 11:57:01,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:01,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:01,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:01,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 11:57:01,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:57:01,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-15 11:57:01,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:01,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:01,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:57:01,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:57:01,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:57:01,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:57:01,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 11:57:01,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:01,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:01,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:01,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:57:01,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:57:01,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 11:57:01,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:01,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:01,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:57:01,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:57:01,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:57:01,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:57:01,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 11:57:01,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:01,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:01,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:01,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 11:57:01,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:57:01,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 11:57:01,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:01,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:01,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:57:01,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:57:01,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:57:01,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:57:01,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-15 11:57:01,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:01,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:01,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:01,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:01,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 11:57:01,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 11:57:01,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-15 11:57:01,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:01,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:01,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 11:57:01,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 11:57:01,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 11:57:01,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:57:01,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-15 11:57:01,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:01,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:01,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:01,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 11:57:01,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:57:01,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 11:57:01,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:01,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:01,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:57:01,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-15 11:57:01,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:57:01,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:57:01,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 11:57:01,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:01,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:01,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:01,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:57:01,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:57:01,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 11:57:01,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:01,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:01,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:57:01,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:57:01,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:57:01,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:57:01,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-15 11:57:01,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:01,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:01,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:01,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-15 11:57:01,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:57:01,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 11:57:01,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:01,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:01,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:57:01,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-15 11:57:01,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:57:01,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:57:01,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 11:57:01,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:01,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:01,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:01,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 11:57:01,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:57:01,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 11:57:01,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:01,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:01,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:57:01,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:57:01,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:57:01,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:57:01,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 11:57:01,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:01,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:01,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:01,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:57:01,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:57:01,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 11:57:01,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:01,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:01,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:57:01,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:57:01,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:57:01,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:57:01,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 11:57:01,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:01,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:01,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:01,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 11:57:01,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:57:01,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 11:57:01,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:01,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:01,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:57:01,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:57:01,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:57:01,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:57:01,310 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-15 11:57:01,311 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1378511309] [2020-10-15 11:57:01,311 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 11:57:01,312 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-15 11:57:01,312 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816565028] [2020-10-15 11:57:01,314 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 11:57:01,320 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 11:57:01,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 11:57:01,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-15 11:57:01,322 INFO L87 Difference]: Start difference. First operand 753 states and 931 transitions. Second operand 10 states. [2020-10-15 11:57:01,664 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 11:57:02,020 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-15 11:57:02,402 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-15 11:57:02,823 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-15 11:57:03,092 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-10-15 11:57:03,368 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-10-15 11:57:09,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 11:57:09,097 INFO L93 Difference]: Finished difference Result 2122 states and 2712 transitions. [2020-10-15 11:57:09,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 11:57:09,097 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 71 [2020-10-15 11:57:09,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 11:57:09,106 INFO L225 Difference]: With dead ends: 2122 [2020-10-15 11:57:09,106 INFO L226 Difference]: Without dead ends: 1384 [2020-10-15 11:57:09,109 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-10-15 11:57:09,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1384 states. [2020-10-15 11:57:09,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1384 to 1111. [2020-10-15 11:57:09,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1111 states. [2020-10-15 11:57:09,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1111 states to 1111 states and 1380 transitions. [2020-10-15 11:57:09,249 INFO L78 Accepts]: Start accepts. Automaton has 1111 states and 1380 transitions. Word has length 71 [2020-10-15 11:57:09,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 11:57:09,250 INFO L479 AbstractCegarLoop]: Abstraction has 1111 states and 1380 transitions. [2020-10-15 11:57:09,250 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 11:57:09,250 INFO L276 IsEmpty]: Start isEmpty. Operand 1111 states and 1380 transitions. [2020-10-15 11:57:09,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-15 11:57:09,253 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 11:57:09,253 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 11:57:09,253 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 11:57:09,254 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 11:57:09,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 11:57:09,254 INFO L82 PathProgramCache]: Analyzing trace with hash 713177060, now seen corresponding path program 1 times [2020-10-15 11:57:09,254 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 11:57:09,255 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [349785209] [2020-10-15 11:57:09,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 11:57:09,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:09,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:09,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:09,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:12,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:12,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-15 11:57:12,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 11:57:12,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3014 [2020-10-15 11:57:12,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:12,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:12,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 11:57:12,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 11:57:12,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-15 11:57:12,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:57:12,564 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-15 11:57:12,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 11:57:12,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:12,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:12,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:12,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 11:57:12,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:57:12,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-15 11:57:12,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:12,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:12,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 11:57:12,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:57:12,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 11:57:12,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:57:12,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 11:57:12,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:12,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:12,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:12,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:57:12,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:57:12,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 11:57:12,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:12,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:12,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 11:57:12,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:57:12,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 11:57:12,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:57:12,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 11:57:12,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:12,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:12,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:12,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 11:57:12,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:57:12,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 11:57:12,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:12,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:12,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 11:57:12,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:57:12,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 11:57:12,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:57:12,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-15 11:57:12,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:12,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:12,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:12,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:12,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 11:57:12,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 11:57:12,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-15 11:57:12,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:12,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:12,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 11:57:12,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:57:12,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 11:57:12,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:57:12,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-15 11:57:12,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:12,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:12,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:12,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 11:57:12,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:57:12,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 11:57:12,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:12,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:12,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:57:12,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-15 11:57:12,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:57:12,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:57:12,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 11:57:12,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:12,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:12,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:12,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:57:12,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:57:12,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 11:57:12,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:12,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:12,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:57:12,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:57:12,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:57:12,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:57:12,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-15 11:57:12,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:12,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:12,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:12,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-15 11:57:12,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:57:12,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 11:57:12,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:12,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:12,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:57:12,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-15 11:57:12,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:57:12,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:57:12,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 11:57:12,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:12,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:12,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:12,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 11:57:12,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:57:12,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 11:57:12,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:12,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:12,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:57:12,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:57:12,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:57:12,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:57:12,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 11:57:12,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:12,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:12,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:12,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:57:12,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:57:12,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 11:57:12,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:12,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:12,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:57:12,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:57:12,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:57:12,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:57:12,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 11:57:12,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:12,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:12,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:12,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 11:57:12,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:57:12,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 11:57:12,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:12,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:12,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:57:12,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:57:12,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:57:12,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:57:12,909 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 11:57:12,910 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [349785209] [2020-10-15 11:57:12,910 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 11:57:12,910 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 11:57:12,911 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143149369] [2020-10-15 11:57:12,911 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 11:57:12,911 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 11:57:12,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 11:57:12,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-15 11:57:12,912 INFO L87 Difference]: Start difference. First operand 1111 states and 1380 transitions. Second operand 9 states. [2020-10-15 11:57:13,139 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 11:57:13,528 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-15 11:57:13,955 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-15 11:57:14,595 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-15 11:57:14,856 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-15 11:57:15,161 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-15 11:57:18,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 11:57:18,803 INFO L93 Difference]: Finished difference Result 2487 states and 3162 transitions. [2020-10-15 11:57:18,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-15 11:57:18,803 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 76 [2020-10-15 11:57:18,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 11:57:18,812 INFO L225 Difference]: With dead ends: 2487 [2020-10-15 11:57:18,813 INFO L226 Difference]: Without dead ends: 1409 [2020-10-15 11:57:18,816 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2020-10-15 11:57:18,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1409 states. [2020-10-15 11:57:19,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1409 to 1119. [2020-10-15 11:57:19,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1119 states. [2020-10-15 11:57:19,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1119 states to 1119 states and 1382 transitions. [2020-10-15 11:57:19,007 INFO L78 Accepts]: Start accepts. Automaton has 1119 states and 1382 transitions. Word has length 76 [2020-10-15 11:57:19,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 11:57:19,008 INFO L479 AbstractCegarLoop]: Abstraction has 1119 states and 1382 transitions. [2020-10-15 11:57:19,008 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 11:57:19,008 INFO L276 IsEmpty]: Start isEmpty. Operand 1119 states and 1382 transitions. [2020-10-15 11:57:19,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-15 11:57:19,015 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 11:57:19,015 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 11:57:19,015 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 11:57:19,016 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 11:57:19,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 11:57:19,016 INFO L82 PathProgramCache]: Analyzing trace with hash 1582031762, now seen corresponding path program 1 times [2020-10-15 11:57:19,016 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 11:57:19,017 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1017441677] [2020-10-15 11:57:19,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 11:57:19,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:19,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:19,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:19,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:21,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:21,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-15 11:57:21,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 11:57:21,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2405 [2020-10-15 11:57:21,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:21,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:21,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 11:57:21,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 11:57:21,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-15 11:57:21,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:57:21,767 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-15 11:57:21,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 11:57:21,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:21,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:21,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:21,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 11:57:21,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:57:21,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-15 11:57:21,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:21,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:21,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 11:57:21,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:57:21,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 11:57:21,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:57:21,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 11:57:21,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:21,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:21,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:21,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:57:21,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:57:21,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 11:57:21,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:21,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:21,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 11:57:21,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:57:21,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 11:57:21,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:57:21,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 11:57:21,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:21,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:21,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:21,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 11:57:21,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:57:21,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 11:57:21,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:21,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:21,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 11:57:21,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:57:21,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 11:57:21,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:57:21,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-15 11:57:21,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:21,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:21,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:21,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:21,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 11:57:21,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 11:57:21,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-15 11:57:21,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:21,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:21,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 11:57:21,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:57:21,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 11:57:21,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:57:21,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-15 11:57:21,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:21,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:21,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:21,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 11:57:21,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:57:21,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 11:57:21,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:21,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:21,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:57:21,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-15 11:57:21,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:57:21,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:57:21,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 11:57:21,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:21,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:21,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:21,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:57:21,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:57:21,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 11:57:21,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:21,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:21,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:57:21,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:57:21,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:57:21,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:57:21,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-15 11:57:22,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:22,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:22,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:22,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-15 11:57:22,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:57:22,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 11:57:22,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:22,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:22,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:57:22,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-15 11:57:22,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:57:22,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:57:22,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 11:57:22,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:22,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:22,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:22,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 11:57:22,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:57:22,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 11:57:22,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:22,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:22,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:57:22,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:57:22,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:57:22,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:57:22,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 11:57:22,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:22,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:22,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:22,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:57:22,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:57:22,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 11:57:22,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:22,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:22,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:57:22,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:57:22,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:57:22,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:57:22,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 11:57:22,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:22,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:22,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:22,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 11:57:22,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:57:22,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 11:57:22,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:22,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:22,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:57:22,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:57:22,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:57:22,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:57:22,064 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 11:57:22,064 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1017441677] [2020-10-15 11:57:22,064 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 11:57:22,065 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 11:57:22,065 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531643697] [2020-10-15 11:57:22,065 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 11:57:22,065 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 11:57:22,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 11:57:22,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-15 11:57:22,066 INFO L87 Difference]: Start difference. First operand 1119 states and 1382 transitions. Second operand 9 states. [2020-10-15 11:57:22,305 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 11:57:22,632 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-15 11:57:22,939 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-15 11:57:23,453 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-15 11:57:23,759 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-15 11:57:24,059 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-15 11:57:27,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 11:57:27,154 INFO L93 Difference]: Finished difference Result 2331 states and 2935 transitions. [2020-10-15 11:57:27,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-15 11:57:27,155 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 77 [2020-10-15 11:57:27,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 11:57:27,164 INFO L225 Difference]: With dead ends: 2331 [2020-10-15 11:57:27,164 INFO L226 Difference]: Without dead ends: 1245 [2020-10-15 11:57:27,168 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2020-10-15 11:57:27,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1245 states. [2020-10-15 11:57:27,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1245 to 1086. [2020-10-15 11:57:27,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1086 states. [2020-10-15 11:57:27,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1086 states to 1086 states and 1348 transitions. [2020-10-15 11:57:27,383 INFO L78 Accepts]: Start accepts. Automaton has 1086 states and 1348 transitions. Word has length 77 [2020-10-15 11:57:27,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 11:57:27,384 INFO L479 AbstractCegarLoop]: Abstraction has 1086 states and 1348 transitions. [2020-10-15 11:57:27,384 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 11:57:27,384 INFO L276 IsEmpty]: Start isEmpty. Operand 1086 states and 1348 transitions. [2020-10-15 11:57:27,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-15 11:57:27,387 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 11:57:27,387 INFO L422 BasicCegarLoop]: trace histogram [2, 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] [2020-10-15 11:57:27,387 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 11:57:27,388 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 11:57:27,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 11:57:27,388 INFO L82 PathProgramCache]: Analyzing trace with hash 1364079211, now seen corresponding path program 1 times [2020-10-15 11:57:27,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 11:57:27,388 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [763520757] [2020-10-15 11:57:27,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 11:57:27,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:27,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:27,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:27,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:27,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:28,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:32,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:32,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-15 11:57:32,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 11:57:32,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-15 11:57:32,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:32,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:32,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-15 11:57:32,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 11:57:32,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 11:57:32,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:57:32,783 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-15 11:57:32,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 11:57:32,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:32,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:32,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:32,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 11:57:32,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:57:32,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-15 11:57:32,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:32,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:32,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 11:57:32,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:57:32,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 11:57:32,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:57:32,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 11:57:32,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:32,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:32,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:32,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:57:32,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:57:32,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 11:57:32,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:32,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:32,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 11:57:32,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:57:32,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 11:57:32,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:57:32,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 11:57:32,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:32,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:32,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:32,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 11:57:32,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:57:32,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 11:57:32,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:32,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:32,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 11:57:32,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:57:32,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 11:57:32,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 11:57:32,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-15 11:57:32,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:32,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:32,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:32,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:32,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 11:57:32,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 11:57:32,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-15 11:57:32,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:32,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:32,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 11:57:32,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:57:32,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 11:57:32,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:57:32,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-15 11:57:32,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:32,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:33,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:33,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:33,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-15 11:57:33,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 11:57:33,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-15 11:57:33,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:33,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:33,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 11:57:33,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 11:57:33,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-15 11:57:33,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:57:33,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 11:57:33,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:33,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:33,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:33,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 11:57:33,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:57:33,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-15 11:57:33,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:33,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:33,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 11:57:33,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:57:33,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 11:57:33,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:57:33,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-15 11:57:33,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:33,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:33,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:33,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 11:57:33,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:57:33,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 11:57:33,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:33,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:33,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:57:33,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-15 11:57:33,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:57:33,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:57:33,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 11:57:33,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:33,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:33,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:33,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:57:33,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:57:33,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 11:57:33,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:33,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:33,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:57:33,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:57:33,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:57:33,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:57:33,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-15 11:57:33,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:33,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:33,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:33,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-15 11:57:33,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:57:33,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 11:57:33,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:33,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:33,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:57:33,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-15 11:57:33,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:57:33,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:57:33,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 11:57:33,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:33,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:33,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:33,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 11:57:33,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:57:33,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 11:57:33,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:33,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:33,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:57:33,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:57:33,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:57:33,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:57:33,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 11:57:33,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:33,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:33,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:33,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:57:33,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:57:33,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 11:57:33,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:33,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:33,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:57:33,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:57:33,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:57:33,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:57:33,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 11:57:33,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:33,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:33,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:33,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 11:57:33,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:57:33,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 11:57:33,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:33,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:33,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:57:33,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:57:33,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:57:33,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:57:33,389 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-15 11:57:33,390 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [763520757] [2020-10-15 11:57:33,390 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 11:57:33,390 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-15 11:57:33,391 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32740041] [2020-10-15 11:57:33,392 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-15 11:57:33,396 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 11:57:33,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-15 11:57:33,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2020-10-15 11:57:33,397 INFO L87 Difference]: Start difference. First operand 1086 states and 1348 transitions. Second operand 16 states. [2020-10-15 11:57:33,766 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 11:57:34,226 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-15 11:57:34,575 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-15 11:57:35,111 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-15 11:57:35,666 WARN L193 SmtUtils]: Spent 516.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 208 [2020-10-15 11:57:35,978 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-15 11:57:36,558 WARN L193 SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 210 [2020-10-15 11:57:36,890 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-15 11:57:37,393 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-15 11:57:37,962 WARN L193 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 207 [2020-10-15 11:57:38,549 WARN L193 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 209 [2020-10-15 11:57:38,992 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-15 11:57:39,364 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-15 11:57:45,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 11:57:45,788 INFO L93 Difference]: Finished difference Result 3120 states and 4038 transitions. [2020-10-15 11:57:45,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-15 11:57:45,791 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 89 [2020-10-15 11:57:45,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 11:57:45,803 INFO L225 Difference]: With dead ends: 3120 [2020-10-15 11:57:45,803 INFO L226 Difference]: Without dead ends: 2074 [2020-10-15 11:57:45,807 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 407 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=478, Invalid=1414, Unknown=0, NotChecked=0, Total=1892 [2020-10-15 11:57:45,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2074 states. [2020-10-15 11:57:46,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2074 to 1423. [2020-10-15 11:57:46,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1423 states. [2020-10-15 11:57:46,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1423 states to 1423 states and 1750 transitions. [2020-10-15 11:57:46,045 INFO L78 Accepts]: Start accepts. Automaton has 1423 states and 1750 transitions. Word has length 89 [2020-10-15 11:57:46,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 11:57:46,046 INFO L479 AbstractCegarLoop]: Abstraction has 1423 states and 1750 transitions. [2020-10-15 11:57:46,046 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-15 11:57:46,046 INFO L276 IsEmpty]: Start isEmpty. Operand 1423 states and 1750 transitions. [2020-10-15 11:57:46,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-15 11:57:46,049 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 11:57:46,050 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-15 11:57:46,050 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 11:57:46,050 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 11:57:46,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 11:57:46,051 INFO L82 PathProgramCache]: Analyzing trace with hash 1393873400, now seen corresponding path program 1 times [2020-10-15 11:57:46,051 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 11:57:46,051 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [313873906] [2020-10-15 11:57:46,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 11:57:46,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:46,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:46,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:46,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:46,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:46,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:50,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:50,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-15 11:57:50,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 11:57:50,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4673 [2020-10-15 11:57:50,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:50,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:50,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 11:57:50,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 11:57:50,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-15 11:57:50,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:57:51,109 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-15 11:57:51,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 11:57:51,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:51,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:51,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:51,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 11:57:51,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:57:51,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-15 11:57:51,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:51,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:51,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 11:57:51,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:57:51,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 11:57:51,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:57:51,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 11:57:51,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:51,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:51,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:51,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:57:51,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:57:51,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 11:57:51,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:51,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:51,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 11:57:51,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:57:51,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 11:57:51,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:57:51,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 11:57:51,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:51,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:51,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:51,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 11:57:51,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:57:51,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 11:57:51,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:51,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:51,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 11:57:51,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:57:51,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 11:57:51,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:57:51,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-15 11:57:51,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:51,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:51,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:51,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:51,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 11:57:51,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 11:57:51,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-15 11:57:51,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:51,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:51,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 11:57:51,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:57:51,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 11:57:51,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:57:51,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-15 11:57:51,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:51,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:51,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:51,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:51,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 11:57:51,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 11:57:51,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-15 11:57:51,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:51,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:51,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 11:57:51,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:57:51,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 11:57:51,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:57:51,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 11:57:51,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:51,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:51,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:51,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 11:57:51,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:57:51,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 11:57:51,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:51,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:51,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 11:57:51,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:57:51,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 11:57:51,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:57:51,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-15 11:57:51,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:51,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:51,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:51,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 11:57:51,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:57:51,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 11:57:51,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:51,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:51,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:57:51,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-15 11:57:51,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:57:51,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:57:51,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 11:57:51,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:51,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:51,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:51,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:57:51,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:57:51,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 11:57:51,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:51,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:51,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:57:51,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:57:51,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:57:51,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:57:51,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-15 11:57:51,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:51,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:51,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:51,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-15 11:57:51,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:57:51,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 11:57:51,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:51,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:51,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:57:51,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-15 11:57:51,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:57:51,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:57:51,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 11:57:51,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:51,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:51,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:51,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 11:57:51,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:57:51,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 11:57:51,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:51,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:51,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:57:51,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:57:51,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:57:51,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:57:51,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 11:57:51,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:51,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:51,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:51,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:57:51,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:57:51,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 11:57:51,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:51,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:51,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:57:51,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:57:51,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:57:51,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:57:51,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 11:57:51,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:57:51,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:57:51,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:57:51,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 11:57:51,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:57:51,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 11:57:51,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:57:51,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:57:51,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:57:51,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:57:51,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:57:51,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:57:51,633 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 11:57:51,634 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [313873906] [2020-10-15 11:57:51,634 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 11:57:51,634 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-15 11:57:51,634 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009290166] [2020-10-15 11:57:51,635 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 11:57:51,635 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 11:57:51,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 11:57:51,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-10-15 11:57:51,636 INFO L87 Difference]: Start difference. First operand 1423 states and 1750 transitions. Second operand 14 states. [2020-10-15 11:57:51,964 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 11:57:52,579 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-15 11:57:53,131 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-15 11:57:53,876 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-15 11:57:54,188 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-15 11:57:54,573 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-15 11:57:54,900 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-15 11:57:55,241 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-15 11:57:55,717 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-15 11:57:56,368 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-15 11:57:56,862 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-15 11:57:57,300 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-15 11:57:57,664 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-15 11:57:57,965 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-15 11:57:58,350 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-15 11:57:58,736 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-15 11:57:59,462 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-15 11:58:06,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 11:58:06,368 INFO L93 Difference]: Finished difference Result 3671 states and 4612 transitions. [2020-10-15 11:58:06,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-15 11:58:06,368 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 90 [2020-10-15 11:58:06,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 11:58:06,381 INFO L225 Difference]: With dead ends: 3671 [2020-10-15 11:58:06,382 INFO L226 Difference]: Without dead ends: 2288 [2020-10-15 11:58:06,386 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 329 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=446, Invalid=1036, Unknown=0, NotChecked=0, Total=1482 [2020-10-15 11:58:06,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2288 states. [2020-10-15 11:58:06,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2288 to 1837. [2020-10-15 11:58:06,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1837 states. [2020-10-15 11:58:06,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1837 states to 1837 states and 2267 transitions. [2020-10-15 11:58:06,682 INFO L78 Accepts]: Start accepts. Automaton has 1837 states and 2267 transitions. Word has length 90 [2020-10-15 11:58:06,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 11:58:06,682 INFO L479 AbstractCegarLoop]: Abstraction has 1837 states and 2267 transitions. [2020-10-15 11:58:06,683 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 11:58:06,683 INFO L276 IsEmpty]: Start isEmpty. Operand 1837 states and 2267 transitions. [2020-10-15 11:58:06,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-15 11:58:06,686 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 11:58:06,687 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-15 11:58:06,687 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 11:58:06,687 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 11:58:06,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 11:58:06,688 INFO L82 PathProgramCache]: Analyzing trace with hash 539231140, now seen corresponding path program 1 times [2020-10-15 11:58:06,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 11:58:06,688 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2099241624] [2020-10-15 11:58:06,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 11:58:06,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:06,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:06,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:06,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:07,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:07,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:11,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:11,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-15 11:58:11,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 11:58:11,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-15 11:58:11,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:11,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:11,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 11:58:11,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 11:58:11,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-15 11:58:11,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:58:12,067 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-15 11:58:12,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 11:58:12,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:12,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:12,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:12,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 11:58:12,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:58:12,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-15 11:58:12,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:12,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:12,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 11:58:12,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:58:12,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 11:58:12,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:58:12,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 11:58:12,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:12,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:12,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:12,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:58:12,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:58:12,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 11:58:12,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:12,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:12,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 11:58:12,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:58:12,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 11:58:12,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:58:12,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 11:58:12,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:12,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:12,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:12,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 11:58:12,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:58:12,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 11:58:12,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:12,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:12,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 11:58:12,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:58:12,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 11:58:12,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:58:12,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-15 11:58:12,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:12,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:12,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:12,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:12,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 11:58:12,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 11:58:12,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-15 11:58:12,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:12,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:12,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 11:58:12,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:58:12,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 11:58:12,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:58:12,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-15 11:58:12,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:12,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:12,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:12,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:12,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-15 11:58:12,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 11:58:12,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-15 11:58:12,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:12,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:12,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 11:58:12,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:58:12,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 11:58:12,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:58:12,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-15 11:58:12,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:12,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:12,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:12,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 11:58:12,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:58:12,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 11:58:12,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:12,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:12,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 11:58:12,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:58:12,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 11:58:12,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:58:12,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-15 11:58:12,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:12,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:12,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:12,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 11:58:12,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:58:12,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 11:58:12,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:12,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:12,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:58:12,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-15 11:58:12,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:58:12,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:58:12,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 11:58:12,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:12,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:12,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:12,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:58:12,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:58:12,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 11:58:12,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:12,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:12,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:58:12,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:58:12,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:58:12,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:58:12,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-15 11:58:12,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:12,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:12,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:12,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-15 11:58:12,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:58:12,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-15 11:58:12,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:12,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:12,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:58:12,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-15 11:58:12,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:58:12,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:58:12,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 11:58:12,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:12,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:12,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:12,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 11:58:12,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:58:12,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 11:58:12,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:12,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:12,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:58:12,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:58:12,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:58:12,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:58:12,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 11:58:12,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:12,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:12,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:12,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:58:12,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:58:12,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 11:58:12,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:12,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:12,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:58:12,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:58:12,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:58:12,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:58:12,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 11:58:12,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:12,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:12,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:12,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 11:58:12,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:58:12,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 11:58:12,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:12,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:12,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:58:12,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:58:12,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:58:12,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:58:12,691 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 11:58:12,691 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2099241624] [2020-10-15 11:58:12,691 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 11:58:12,692 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-15 11:58:12,692 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519825704] [2020-10-15 11:58:12,692 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-15 11:58:12,692 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 11:58:12,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-15 11:58:12,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-15 11:58:12,693 INFO L87 Difference]: Start difference. First operand 1837 states and 2267 transitions. Second operand 15 states. [2020-10-15 11:58:12,928 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 11:58:13,307 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-15 11:58:13,631 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-15 11:58:14,112 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-15 11:58:14,414 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-15 11:58:14,768 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-15 11:58:15,051 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-15 11:58:15,377 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-15 11:58:15,823 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-15 11:58:16,166 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-15 11:58:16,520 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-15 11:58:16,802 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-15 11:58:17,106 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-15 11:58:17,415 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-15 11:58:17,871 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-15 11:58:18,272 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-15 11:58:18,602 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-15 11:58:19,195 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-15 11:58:25,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 11:58:25,019 INFO L93 Difference]: Finished difference Result 4597 states and 5784 transitions. [2020-10-15 11:58:25,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 11:58:25,022 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 91 [2020-10-15 11:58:25,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 11:58:25,033 INFO L225 Difference]: With dead ends: 4597 [2020-10-15 11:58:25,033 INFO L226 Difference]: Without dead ends: 2800 [2020-10-15 11:58:25,038 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=482, Invalid=1158, Unknown=0, NotChecked=0, Total=1640 [2020-10-15 11:58:25,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2800 states. [2020-10-15 11:58:25,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2800 to 2251. [2020-10-15 11:58:25,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2251 states. [2020-10-15 11:58:25,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2251 states to 2251 states and 2788 transitions. [2020-10-15 11:58:25,421 INFO L78 Accepts]: Start accepts. Automaton has 2251 states and 2788 transitions. Word has length 91 [2020-10-15 11:58:25,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 11:58:25,421 INFO L479 AbstractCegarLoop]: Abstraction has 2251 states and 2788 transitions. [2020-10-15 11:58:25,422 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-15 11:58:25,422 INFO L276 IsEmpty]: Start isEmpty. Operand 2251 states and 2788 transitions. [2020-10-15 11:58:25,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-15 11:58:25,428 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 11:58:25,428 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-15 11:58:25,428 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 11:58:25,429 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 11:58:25,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 11:58:25,429 INFO L82 PathProgramCache]: Analyzing trace with hash -1963137263, now seen corresponding path program 1 times [2020-10-15 11:58:25,429 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 11:58:25,430 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [698567143] [2020-10-15 11:58:25,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 11:58:25,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:25,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:25,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:25,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:25,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:26,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:29,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:29,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-15 11:58:29,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 11:58:29,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4401 [2020-10-15 11:58:29,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:29,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:29,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 11:58:29,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 11:58:29,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-15 11:58:29,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:58:30,130 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-15 11:58:30,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 11:58:30,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:30,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:30,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:30,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 11:58:30,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:58:30,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-15 11:58:30,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:30,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:30,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 11:58:30,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:58:30,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 11:58:30,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:58:30,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 11:58:30,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:30,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:30,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:30,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:58:30,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:58:30,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 11:58:30,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:30,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:30,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 11:58:30,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:58:30,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 11:58:30,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:58:30,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 11:58:30,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:30,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:30,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:30,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 11:58:30,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:58:30,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 11:58:30,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:30,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:30,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 11:58:30,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:58:30,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 11:58:30,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:58:30,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-15 11:58:30,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:30,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:30,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:30,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:30,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 11:58:30,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 11:58:30,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-15 11:58:30,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:30,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:30,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 11:58:30,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:58:30,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 11:58:30,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:58:30,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-15 11:58:30,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:30,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:30,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:30,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:30,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-15 11:58:30,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 11:58:30,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-15 11:58:30,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:30,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:30,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 11:58:30,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:58:30,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-15 11:58:30,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:58:30,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 11:58:30,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:30,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:30,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:30,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 11:58:30,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:58:30,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 11:58:30,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:30,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:30,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 11:58:30,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:58:30,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 11:58:30,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:58:30,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 11:58:30,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:30,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:30,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:30,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 11:58:30,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:58:30,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 11:58:30,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:30,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:30,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:58:30,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-15 11:58:30,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:58:30,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:58:30,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 11:58:30,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:30,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:30,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:30,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:58:30,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:58:30,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 11:58:30,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:30,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:30,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:58:30,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:58:30,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:58:30,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:58:30,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-15 11:58:30,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:30,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:30,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:30,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-15 11:58:30,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:58:30,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 11:58:30,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:30,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:30,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:58:30,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-15 11:58:30,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:58:30,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:58:30,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 11:58:30,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:30,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:30,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:30,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 11:58:30,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:58:30,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 11:58:30,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:30,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:30,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:58:30,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:58:30,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:58:30,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:58:30,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 11:58:30,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:30,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:30,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:30,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:58:30,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:58:30,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 11:58:30,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:30,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:30,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:58:30,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:58:30,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:58:30,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:58:30,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 11:58:30,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:30,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:30,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:30,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 11:58:30,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:58:30,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 11:58:30,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:30,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:30,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:58:30,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:58:30,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:58:30,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:58:30,545 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 11:58:30,545 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [698567143] [2020-10-15 11:58:30,545 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 11:58:30,546 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-15 11:58:30,546 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357827296] [2020-10-15 11:58:30,546 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 11:58:30,546 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 11:58:30,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 11:58:30,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-10-15 11:58:30,547 INFO L87 Difference]: Start difference. First operand 2251 states and 2788 transitions. Second operand 14 states. [2020-10-15 11:58:30,805 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 11:58:31,160 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-15 11:58:31,481 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-15 11:58:31,939 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-15 11:58:32,239 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-15 11:58:32,589 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-15 11:58:32,873 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-15 11:58:33,184 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-15 11:58:33,649 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-15 11:58:33,947 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-15 11:58:34,298 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-15 11:58:34,603 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-15 11:58:34,883 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-15 11:58:35,207 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-15 11:58:35,616 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-15 11:58:36,018 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-15 11:58:36,428 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-15 11:58:41,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 11:58:41,457 INFO L93 Difference]: Finished difference Result 4820 states and 6051 transitions. [2020-10-15 11:58:41,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-15 11:58:41,458 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 92 [2020-10-15 11:58:41,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 11:58:41,476 INFO L225 Difference]: With dead ends: 4820 [2020-10-15 11:58:41,476 INFO L226 Difference]: Without dead ends: 2609 [2020-10-15 11:58:41,482 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=421, Invalid=985, Unknown=0, NotChecked=0, Total=1406 [2020-10-15 11:58:41,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2609 states. [2020-10-15 11:58:41,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2609 to 491. [2020-10-15 11:58:41,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 491 states. [2020-10-15 11:58:41,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 588 transitions. [2020-10-15 11:58:41,622 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 588 transitions. Word has length 92 [2020-10-15 11:58:41,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 11:58:41,622 INFO L479 AbstractCegarLoop]: Abstraction has 491 states and 588 transitions. [2020-10-15 11:58:41,622 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 11:58:41,622 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 588 transitions. [2020-10-15 11:58:41,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-15 11:58:41,625 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 11:58:41,625 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 11:58:41,625 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 11:58:41,625 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 11:58:41,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 11:58:41,626 INFO L82 PathProgramCache]: Analyzing trace with hash -637087091, now seen corresponding path program 1 times [2020-10-15 11:58:41,626 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 11:58:41,626 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1997048066] [2020-10-15 11:58:41,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 11:58:41,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:41,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:41,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:42,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:42,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-15 11:58:42,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 11:58:42,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 468 [2020-10-15 11:58:42,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:42,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:42,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 11:58:42,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-10-15 11:58:42,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-15 11:58:42,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:58:42,364 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-15 11:58:42,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 11:58:42,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:42,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:42,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:42,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 11:58:42,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:58:42,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 11:58:42,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:42,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:42,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:58:42,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:58:42,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:58:42,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:58:42,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 11:58:42,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:42,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:42,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:42,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:58:42,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:58:42,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 11:58:42,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:42,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:42,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:58:42,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:58:42,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:58:42,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:58:42,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 11:58:42,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:42,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:42,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:42,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 11:58:42,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:58:42,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 11:58:42,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:42,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:42,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:58:42,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:58:42,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:58:42,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:58:42,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-15 11:58:42,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:42,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:42,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:42,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:42,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 11:58:42,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 11:58:42,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 11:58:42,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:42,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:42,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 11:58:42,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 11:58:42,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 11:58:42,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:58:42,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-15 11:58:42,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:42,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:42,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:42,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 11:58:42,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:58:42,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 11:58:42,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:42,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:42,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:58:42,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:58:42,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:58:42,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:58:42,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 11:58:42,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:42,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:42,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:42,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 11:58:42,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:58:42,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 11:58:42,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:42,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:42,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:58:42,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:58:42,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:58:42,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:58:42,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-15 11:58:42,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:42,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:42,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:42,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 11:58:42,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:58:42,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 11:58:42,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:42,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:42,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 11:58:42,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:58:42,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 11:58:42,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:58:42,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 11:58:42,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:42,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:42,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:42,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:58:42,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:58:42,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 11:58:42,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:42,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:42,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:58:42,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:58:42,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:58:42,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:58:42,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-15 11:58:42,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:42,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:42,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:42,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 11:58:42,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:58:42,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 11:58:42,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:42,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:42,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:58:42,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-15 11:58:42,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:58:42,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:58:42,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 11:58:42,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:42,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:42,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:42,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:58:42,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:58:42,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 11:58:42,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:42,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:42,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:58:42,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:58:42,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:58:42,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:58:42,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-15 11:58:42,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:42,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:42,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:42,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-15 11:58:42,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:58:42,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 11:58:42,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:42,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:42,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:58:42,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-15 11:58:42,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:58:42,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:58:42,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 11:58:42,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:42,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:42,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:42,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 11:58:42,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:58:42,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 11:58:42,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:42,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:42,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:58:42,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:58:42,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:58:42,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:58:42,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 11:58:42,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:42,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:42,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:42,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:58:42,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:58:42,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 11:58:42,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:42,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:42,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:58:42,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:58:42,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:58:42,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:58:42,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 11:58:42,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:42,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:42,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:42,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 11:58:42,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:58:42,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 11:58:42,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:42,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:42,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:58:42,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:58:42,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:58:42,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:58:42,633 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-15 11:58:42,633 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1997048066] [2020-10-15 11:58:42,633 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 11:58:42,633 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-15 11:58:42,633 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934937596] [2020-10-15 11:58:42,634 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-15 11:58:42,634 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 11:58:42,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-15 11:58:42,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-10-15 11:58:42,634 INFO L87 Difference]: Start difference. First operand 491 states and 588 transitions. Second operand 12 states. [2020-10-15 11:58:42,891 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 11:58:43,226 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-15 11:58:43,535 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-15 11:58:43,855 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-15 11:58:44,119 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-10-15 11:58:44,387 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-10-15 11:58:44,671 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-10-15 11:58:48,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 11:58:48,060 INFO L93 Difference]: Finished difference Result 1147 states and 1413 transitions. [2020-10-15 11:58:48,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 11:58:48,060 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 101 [2020-10-15 11:58:48,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 11:58:48,065 INFO L225 Difference]: With dead ends: 1147 [2020-10-15 11:58:48,065 INFO L226 Difference]: Without dead ends: 693 [2020-10-15 11:58:48,066 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=127, Invalid=379, Unknown=0, NotChecked=0, Total=506 [2020-10-15 11:58:48,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2020-10-15 11:58:48,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 604. [2020-10-15 11:58:48,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 604 states. [2020-10-15 11:58:48,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 729 transitions. [2020-10-15 11:58:48,187 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 729 transitions. Word has length 101 [2020-10-15 11:58:48,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 11:58:48,188 INFO L479 AbstractCegarLoop]: Abstraction has 604 states and 729 transitions. [2020-10-15 11:58:48,188 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-15 11:58:48,188 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 729 transitions. [2020-10-15 11:58:48,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-10-15 11:58:48,190 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 11:58:48,190 INFO L422 BasicCegarLoop]: trace histogram [3, 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] [2020-10-15 11:58:48,190 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 11:58:48,191 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 11:58:48,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 11:58:48,191 INFO L82 PathProgramCache]: Analyzing trace with hash -1252957905, now seen corresponding path program 1 times [2020-10-15 11:58:48,191 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 11:58:48,191 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1990634259] [2020-10-15 11:58:48,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 11:58:48,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:48,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:48,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:48,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:48,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-15 11:58:48,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 11:58:48,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 541 [2020-10-15 11:58:48,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:48,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:48,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 11:58:48,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 91 [2020-10-15 11:58:48,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 11:58:48,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:58:49,010 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-15 11:58:49,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 11:58:49,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:49,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:49,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:49,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 11:58:49,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:58:49,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 11:58:49,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:49,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:49,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:58:49,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:58:49,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:58:49,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:58:49,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 11:58:49,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:49,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:49,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:49,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:58:49,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:58:49,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 11:58:49,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:49,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:49,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:58:49,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:58:49,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:58:49,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:58:49,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 11:58:49,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:49,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:49,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:49,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 11:58:49,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:58:49,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 11:58:49,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:49,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:49,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:58:49,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:58:49,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:58:49,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:58:49,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-15 11:58:49,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:49,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:49,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:49,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:49,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 11:58:49,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 11:58:49,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-15 11:58:49,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:49,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:49,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 11:58:49,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 11:58:49,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 11:58:49,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:58:49,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-15 11:58:49,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:49,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:49,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:49,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 11:58:49,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:58:49,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 11:58:49,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:49,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:49,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:58:49,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:58:49,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:58:49,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:58:49,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 11:58:49,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:49,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:49,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:49,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 11:58:49,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:58:49,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 11:58:49,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:49,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:49,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:58:49,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:58:49,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:58:49,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:58:49,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-15 11:58:49,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:49,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:49,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:49,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 11:58:49,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:58:49,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 11:58:49,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:49,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:49,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:58:49,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:58:49,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:58:49,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:58:49,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 11:58:49,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:49,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:49,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:49,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:58:49,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:58:49,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 11:58:49,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:49,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:49,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:58:49,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:58:49,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:58:49,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:58:49,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-15 11:58:49,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:49,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:49,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:49,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 11:58:49,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:58:49,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 11:58:49,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:49,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:49,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:58:49,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:58:49,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:58:49,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:58:49,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-15 11:58:49,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:49,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:49,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:49,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 11:58:49,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:58:49,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 11:58:49,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:49,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:49,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:58:49,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-15 11:58:49,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:58:49,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:58:49,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 11:58:49,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:49,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:49,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:49,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:58:49,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:58:49,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 11:58:49,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:49,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:49,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:58:49,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:58:49,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:58:49,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:58:49,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-15 11:58:49,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:49,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:49,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:49,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-15 11:58:49,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:58:49,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 11:58:49,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:49,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:49,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:58:49,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-15 11:58:49,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:58:49,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:58:49,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 11:58:49,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:49,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:49,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:49,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 11:58:49,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:58:49,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 11:58:49,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:49,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:49,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:58:49,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:58:49,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:58:49,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:58:49,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 11:58:49,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:49,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:49,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:49,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:58:49,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:58:49,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 11:58:49,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:49,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:49,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:58:49,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:58:49,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:58:49,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:58:49,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 11:58:49,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:58:49,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:58:49,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:58:49,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 11:58:49,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:58:49,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 11:58:49,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:58:49,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:58:49,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:58:49,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:58:49,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:58:49,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:58:49,338 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-15 11:58:49,338 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1990634259] [2020-10-15 11:58:49,338 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 11:58:49,338 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-15 11:58:49,338 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368628282] [2020-10-15 11:58:49,339 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 11:58:49,339 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 11:58:49,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 11:58:49,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-10-15 11:58:49,339 INFO L87 Difference]: Start difference. First operand 604 states and 729 transitions. Second operand 13 states. [2020-10-15 11:58:49,591 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 11:58:49,936 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-15 11:58:50,261 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-15 11:58:50,605 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-15 11:58:50,876 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-10-15 11:58:51,144 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-10-15 11:58:51,432 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-10-15 11:58:51,710 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-10-15 11:58:57,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 11:58:57,824 INFO L93 Difference]: Finished difference Result 1586 states and 1938 transitions. [2020-10-15 11:58:57,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-15 11:58:57,825 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 119 [2020-10-15 11:58:57,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 11:58:57,830 INFO L225 Difference]: With dead ends: 1586 [2020-10-15 11:58:57,831 INFO L226 Difference]: Without dead ends: 1020 [2020-10-15 11:58:57,832 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=145, Invalid=455, Unknown=0, NotChecked=0, Total=600 [2020-10-15 11:58:57,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1020 states. [2020-10-15 11:58:58,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1020 to 873. [2020-10-15 11:58:58,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 873 states. [2020-10-15 11:58:58,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1040 transitions. [2020-10-15 11:58:58,008 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1040 transitions. Word has length 119 [2020-10-15 11:58:58,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 11:58:58,008 INFO L479 AbstractCegarLoop]: Abstraction has 873 states and 1040 transitions. [2020-10-15 11:58:58,008 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 11:58:58,008 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1040 transitions. [2020-10-15 11:58:58,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-15 11:58:58,011 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 11:58:58,011 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, 1] [2020-10-15 11:58:58,011 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 11:58:58,011 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 11:58:58,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 11:58:58,011 INFO L82 PathProgramCache]: Analyzing trace with hash -1042200075, now seen corresponding path program 1 times [2020-10-15 11:58:58,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 11:58:58,012 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1393280433] [2020-10-15 11:58:58,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 11:58:58,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 11:58:58,061 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-15 11:58:58,061 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 11:58:58,066 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-15 11:58:58,074 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2020-10-15 11:58:58,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 11:58:58 BoogieIcfgContainer [2020-10-15 11:58:58,097 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 11:58:58,098 INFO L168 Benchmark]: Toolchain (without parser) took 159789.30 ms. Allocated memory was 147.8 MB in the beginning and 1.6 GB in the end (delta: 1.5 GB). Free memory was 100.2 MB in the beginning and 307.8 MB in the end (delta: -207.6 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2020-10-15 11:58:58,099 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.0 MB in the end (delta: 420.0 kB). Peak memory consumption was 420.0 kB. Max. memory is 7.1 GB. [2020-10-15 11:58:58,099 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1411.75 ms. Allocated memory was 147.8 MB in the beginning and 207.1 MB in the end (delta: 59.2 MB). Free memory was 100.2 MB in the beginning and 135.6 MB in the end (delta: -35.3 MB). Peak memory consumption was 33.5 MB. Max. memory is 7.1 GB. [2020-10-15 11:58:58,100 INFO L168 Benchmark]: Boogie Preprocessor took 198.95 ms. Allocated memory is still 207.1 MB. Free memory was 135.6 MB in the beginning and 125.4 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2020-10-15 11:58:58,100 INFO L168 Benchmark]: RCFGBuilder took 5321.34 ms. Allocated memory was 207.1 MB in the beginning and 350.7 MB in the end (delta: 143.7 MB). Free memory was 125.4 MB in the beginning and 225.4 MB in the end (delta: -100.0 MB). Peak memory consumption was 124.9 MB. Max. memory is 7.1 GB. [2020-10-15 11:58:58,100 INFO L168 Benchmark]: TraceAbstraction took 152850.59 ms. Allocated memory was 350.7 MB in the beginning and 1.6 GB in the end (delta: 1.3 GB). Free memory was 225.4 MB in the beginning and 307.8 MB in the end (delta: -82.4 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2020-10-15 11:58:58,102 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.0 MB in the end (delta: 420.0 kB). Peak memory consumption was 420.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1411.75 ms. Allocated memory was 147.8 MB in the beginning and 207.1 MB in the end (delta: 59.2 MB). Free memory was 100.2 MB in the beginning and 135.6 MB in the end (delta: -35.3 MB). Peak memory consumption was 33.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 198.95 ms. Allocated memory is still 207.1 MB. Free memory was 135.6 MB in the beginning and 125.4 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5321.34 ms. Allocated memory was 207.1 MB in the beginning and 350.7 MB in the end (delta: 143.7 MB). Free memory was 125.4 MB in the beginning and 225.4 MB in the end (delta: -100.0 MB). Peak memory consumption was 124.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 152850.59 ms. Allocated memory was 350.7 MB in the beginning and 1.6 GB in the end (delta: 1.3 GB). Free memory was 225.4 MB in the beginning and 307.8 MB in the end (delta: -82.4 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 1661]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of large string literal at line 2216, overapproximation of bitwiseAnd at line 1827. Possible FailurePath: [L1684] int ldv_irq_1_2 = 0; [L1685] int LDV_IN_INTERRUPT = 1; [L1686] int ldv_irq_1_3 = 0; [L1687] struct platform_device *tegra_rtc_driver_group0 ; [L1688] void *ldv_irq_data_1_1 ; [L1689] int ldv_irq_1_1 = 0; [L1690] int ldv_irq_1_0 = 0; [L1691] int ldv_irq_line_1_3 ; [L1692] void *ldv_irq_data_1_0 ; [L1693] int ldv_state_variable_0 ; [L1694] struct device *tegra_rtc_ops_group1 ; [L1695] int ldv_state_variable_3 ; [L1696] int ldv_irq_line_1_0 ; [L1697] int ldv_state_variable_2 ; [L1698] void *ldv_irq_data_1_3 ; [L1699] int ref_cnt ; [L1700] int ldv_irq_line_1_1 ; [L1701] struct rtc_time *tegra_rtc_ops_group0 ; [L1702] void *ldv_irq_data_1_2 ; [L1703] int ldv_state_variable_1 ; [L1704] int ldv_irq_line_1_2 ; [L1705] struct rtc_wkalrm *tegra_rtc_ops_group2 ; [L2047-L2049] static struct rtc_class_ops tegra_rtc_ops = {0, 0, 0, & tegra_rtc_read_time, & tegra_rtc_set_time, & tegra_rtc_read_alarm, & tegra_rtc_set_alarm, & tegra_rtc_proc, 0, 0, & tegra_rtc_alarm_irq_enable}; [L2215-L2216] static struct platform_driver tegra_rtc_driver = {0, & tegra_rtc_remove, & tegra_rtc_shutdown, & tegra_rtc_suspend, & tegra_rtc_resume, {"tegra_rtc", 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 0}; [L2232] int ldv_retval_2 ; [L2233] int ldv_retval_0 ; [L2235] int ldv_retval_1 ; [L2758] int ldv_init = 0; [L2387] struct seq_file *ldvarg1 ; [L2388] void *tmp ; [L2389] unsigned int ldvarg0 ; [L2390] unsigned int tmp___0 ; [L2391] pm_message_t ldvarg2 ; [L2392] int tmp___1 ; [L2393] int tmp___2 ; [L2394] int tmp___3 ; [L2395] int tmp___4 ; [L2397] CALL, EXPR ldv_zalloc(136U) [L1625] void *p ; [L1626] void *tmp ; [L1627] int tmp___0 ; [L1629] tmp___0 = __VERIFIER_nondet_int() [L1630] COND TRUE tmp___0 != 0 [L1631] return (0); [L2397] RET, EXPR ldv_zalloc(136U) [L2397] tmp = ldv_zalloc(136U) [L2398] ldvarg1 = (struct seq_file *)tmp [L2399] tmp___0 = __VERIFIER_nondet_uint() [L2400] ldvarg0 = tmp___0 [L2401] FCALL ldv_initialize() [L2402] FCALL memset((void *)(& ldvarg2), 0, 4U) [L2403] ldv_state_variable_1 = 1 [L2404] ref_cnt = 0 [L2405] ldv_state_variable_0 = 1 [L2406] ldv_state_variable_3 = 0 [L2407] ldv_state_variable_2 = 0 [L2409] tmp___1 = __VERIFIER_nondet_int() [L2411] case 0: [L2417] case 1: [L2418] COND TRUE ldv_state_variable_0 != 0 [L2419] tmp___2 = __VERIFIER_nondet_int() [L2421] case 0: [L2429] case 1: [L2430] COND TRUE ldv_state_variable_0 == 1 [L2431] CALL, EXPR tegra_rtc_init() [L2219] int tmp ; [L2221] CALL, EXPR platform_driver_probe(& tegra_rtc_driver, & tegra_rtc_probe) [L2837] return __VERIFIER_nondet_int(); [L2221] RET, EXPR platform_driver_probe(& tegra_rtc_driver, & tegra_rtc_probe) [L2221] tmp = platform_driver_probe(& tegra_rtc_driver, & tegra_rtc_probe) [L2222] return (tmp); [L2431] RET, EXPR tegra_rtc_init() [L2431] ldv_retval_0 = tegra_rtc_init() [L2432] COND TRUE ldv_retval_0 == 0 [L2433] ldv_state_variable_0 = 3 [L2434] ldv_state_variable_2 = 1 [L2435] CALL ldv_initialize_platform_driver_2() [L2352] void *tmp ; [L2354] CALL, EXPR ldv_zalloc(624U) [L1625] void *p ; [L1626] void *tmp ; [L1627] int tmp___0 ; [L1629] tmp___0 = __VERIFIER_nondet_int() [L1630] COND TRUE tmp___0 != 0 [L1631] return (0); [L2354] RET, EXPR ldv_zalloc(624U) [L2354] tmp = ldv_zalloc(624U) [L2355] tegra_rtc_driver_group0 = (struct platform_device *)tmp [L2435] RET ldv_initialize_platform_driver_2() [L2438] COND FALSE !(ldv_retval_0 != 0) [L2409] tmp___1 = __VERIFIER_nondet_int() [L2411] case 0: [L2417] case 1: [L2453] case 2: [L2547] case 3: [L2548] COND TRUE ldv_state_variable_2 != 0 [L2549] tmp___4 = __VERIFIER_nondet_int() [L2551] case 0: [L2563] case 1: [L2573] case 2: [L2593] case 3: [L2603] case 4: [L2604] COND TRUE ldv_state_variable_2 == 1 [L2605] CALL ldv_probe_2() [L2825] return __VERIFIER_nondet_int(); [L2605] RET ldv_probe_2() [L2606] ldv_state_variable_2 = 2 [L2607] ref_cnt = ref_cnt + 1 [L2409] tmp___1 = __VERIFIER_nondet_int() [L2411] case 0: [L2417] case 1: [L2453] case 2: [L2547] case 3: [L2548] COND TRUE ldv_state_variable_2 != 0 [L2549] tmp___4 = __VERIFIER_nondet_int() [L2551] case 0: [L2552] COND FALSE !(ldv_state_variable_2 == 4) [L2557] COND TRUE ldv_state_variable_2 == 2 [L2558] CALL tegra_rtc_shutdown(tegra_rtc_driver_group0) [L2211] CALL tegra_rtc_alarm_irq_enable(& pdev->dev, 0U) [L1949] struct tegra_rtc_info *info ; [L1950] void *tmp ; [L1951] unsigned int status ; [L1952] unsigned long sl_irq_flags ; [L1953] u32 __v ; [L1954] u32 __v___0 ; [L1956] CALL, EXPR dev_get_drvdata((struct device const *)dev) [L2796] CALL, EXPR ldv_malloc(0UL) [L1607] void *p ; [L1608] void *tmp ; [L1609] int tmp___0 ; [L1611] tmp___0 = __VERIFIER_nondet_int() [L1612] COND TRUE tmp___0 != 0 [L1613] return (0); [L2796] RET, EXPR ldv_malloc(0UL) [L2796] return ldv_malloc(0UL); [L1956] RET, EXPR dev_get_drvdata((struct device const *)dev) [L1956] tmp = dev_get_drvdata((struct device const *)dev) [L1957] info = (struct tegra_rtc_info *)tmp [L1958] CALL tegra_rtc_wait_while_busy(dev) [L1832] struct tegra_rtc_info *info ; [L1833] void *tmp ; [L1834] int retries ; [L1835] int tmp___0 ; [L1836] u32 tmp___1 ; [L1838] CALL, EXPR dev_get_drvdata((struct device const *)dev) [L2796] CALL, EXPR ldv_malloc(0UL) [L1607] void *p ; [L1608] void *tmp ; [L1609] int tmp___0 ; [L1611] tmp___0 = __VERIFIER_nondet_int() [L1612] COND TRUE tmp___0 != 0 [L1613] return (0); [L2796] RET, EXPR ldv_malloc(0UL) [L2796] return ldv_malloc(0UL); [L1838] RET, EXPR dev_get_drvdata((struct device const *)dev) [L1838] tmp = dev_get_drvdata((struct device const *)dev) [L1839] info = (struct tegra_rtc_info *)tmp [L1840] retries = 500 [L1851] CALL, EXPR tegra_rtc_check_busy(info) [L1822] u32 __v ; [L1823] u32 __v___0 ; [L1825] EXPR info->rtc_base [L1825] EXPR (unsigned int volatile *)info->rtc_base + 4U [L1825] __v___0 = *((unsigned int volatile *)info->rtc_base + 4U) [L1826] __v = __v___0 [L1827] return (__v & 1U); [L1851] RET, EXPR tegra_rtc_check_busy(info) [L1851] tmp___1 = tegra_rtc_check_busy(info) [L1852] COND FALSE !(tmp___1 != 0U) [L1856] return (0); [L1958] RET tegra_rtc_wait_while_busy(dev) [L1959] CALL ldv_spin_lock_check() [L2772] COND FALSE !(ldv_init == 1) [L2774] CALL ldv_error() [L1661] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 95 procedures, 679 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 152.7s, OverallIterations: 13, TraceHistogramMax: 4, AutomataDifference: 105.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4707 SDtfs, 17529 SDslu, 13523 SDs, 0 SdLazy, 28182 SolverSat, 12283 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 57.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 582 GetRequests, 290 SyntacticMatches, 1 SemanticMatches, 291 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1677 ImplicationChecksByTransitivity, 39.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2251occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.3s AutomataMinimizationTime, 12 MinimizatonAttempts, 5265 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 44.1s InterpolantComputationTime, 1123 NumberOfCodeBlocks, 1123 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 990 ConstructedInterpolants, 0 QuantifiedInterpolants, 378974 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 5 PerfectInterpolantSequences, 153/186 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...